代码拉取完成，页面将自动刷新
/**
******************************************************************************
* @file mfxstm32l152.c
* @author MCD Application Team
* @brief This file provides a set of functions needed to manage the MFXSTM32L152
* IO Expander devices.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2018 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "mfxstm32l152.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Component
* @{
*/
/** @defgroup MFXSTM32L152 MFXSTM32L152
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Types_Definitions MFXSTM32L152 Private Types Definitions
* @{
*/
/* Touch screen driver structure initialization */
MFXSTM32L152_TS_Mode_t MFXSTM32L152_TS_Driver =
{
MFXSTM32L152_Init,
MFXSTM32L152_ReadID,
MFXSTM32L152_Reset,
MFXSTM32L152_TS_Start,
MFXSTM32L152_TS_DetectTouch,
MFXSTM32L152_TS_GetXY,
MFXSTM32L152_TS_EnableIT,
MFXSTM32L152_TS_ClearIT,
MFXSTM32L152_TS_ITStatus,
MFXSTM32L152_TS_DisableIT,
};
/* IO driver structure initialization */
MFXSTM32L152_IO_Mode_t MFXSTM32L152_IO_Driver =
{
MFXSTM32L152_IO_Init,
MFXSTM32L152_DeInit,
MFXSTM32L152_ReadID,
MFXSTM32L152_Reset,
MFXSTM32L152_IO_Start,
MFXSTM32L152_IO_WritePin,
MFXSTM32L152_IO_ReadPin,
MFXSTM32L152_IO_EnableIT,
MFXSTM32L152_IO_DisableIT,
MFXSTM32L152_IO_ITStatus,
MFXSTM32L152_IO_ClearIT,
};
/* IDD driver structure initialization */
MFXSTM32L152_IDD_Mode_t MFXSTM32L152_IDD_Driver =
{
MFXSTM32L152_Init,
MFXSTM32L152_DeInit,
MFXSTM32L152_ReadID,
MFXSTM32L152_Reset,
MFXSTM32L152_LowPower,
MFXSTM32L152_WakeUp,
MFXSTM32L152_IDD_Start,
MFXSTM32L152_IDD_Config,
MFXSTM32L152_IDD_GetValue,
MFXSTM32L152_IDD_EnableIT,
MFXSTM32L152_IDD_DisableIT,
MFXSTM32L152_IDD_GetITStatus,
MFXSTM32L152_IDD_ClearIT,
MFXSTM32L152_Error_EnableIT,
MFXSTM32L152_Error_ClearIT,
MFXSTM32L152_Error_GetITStatus,
MFXSTM32L152_Error_DisableIT,
MFXSTM32L152_Error_ReadSrc,
MFXSTM32L152_Error_ReadMsg
};
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Function_Prototypes MFXSTM32L152 Private Function Prototypes
* @{
*/
static int32_t MFXSTM32L152_reg24_setPinValue(MFXSTM32L152_Object_t *pObj, uint8_t RegisterAddr, uint32_t PinPosition,
uint8_t PinValue);
static int32_t MFXSTM32L152_ReadRegWrap(void *handle, uint16_t Reg, uint8_t *Data, uint16_t Length);
static int32_t MFXSTM32L152_WriteRegWrap(void *handle, uint16_t Reg, uint8_t *Data, uint16_t Length);
/**
* @}
*/
/* Private functions ---------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Exported_Functions MFXSTM32L152 Exported Functions
* @{
*/
/**
* @brief Initialize the mfxstm32l152 and configure the needed hardware resources
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_Init(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
if (pObj->IsInitialized == 0U)
{
/* Initialize IO BUS layer */
pObj->IO.Init();
if (MFXSTM32L152_SetIrqOutPinPolarity(pObj, MFXSTM32L152_OUT_PIN_POLARITY_HIGH) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else if (MFXSTM32L152_SetIrqOutPinType(pObj, MFXSTM32L152_OUT_PIN_TYPE_PUSHPULL) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
pObj->IsInitialized = 1U;
}
}
return ret;
}
/**
* @brief DeInitialize the mfxstm32l152 and unconfigure the needed hardware resources
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_DeInit(MFXSTM32L152_Object_t *pObj)
{
if (pObj->IsInitialized == 1U)
{
pObj->IsInitialized = 0U;
}
return MFXSTM32L152_OK;
}
/**
* @brief Reset the mfxstm32l152 by Software.
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_Reset(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp = MFXSTM32L152_SWRST;
/* Soft Reset */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Put mfxstm32l152 Device in Low Power standby mode
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_LowPower(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp = MFXSTM32L152_STANDBY;
/* Enter standby mode */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief WakeUp mfxstm32l152 from standby mode
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_WakeUp(MFXSTM32L152_Object_t *pObj)
{
/* Prevent unused argument(s) compilation warning */
(void)(pObj);
return MFXSTM32L152_OK;
}
/**
* @brief Read the MFXSTM32L152 IO Expander device ID.
* @param pObj Pointer to component object.
* @retval The Device ID (two bytes).
*/
int32_t MFXSTM32L152_ReadID(MFXSTM32L152_Object_t *pObj, uint32_t *Id)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t id;
/* Initialize IO BUS layer */
pObj->IO.Init();
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_ID, &id, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Store the device ID value */
*Id = id;
}
return ret;
}
/**
* @brief Read the MFXSTM32L152 device firmware version.
* @param pObj Pointer to component object.
* @retval The Device FW version (two bytes).
*/
int32_t MFXSTM32L152_ReadFwVersion(MFXSTM32L152_Object_t *pObj)
{
uint8_t data[2];
uint32_t ret;
pObj->IO.ReadReg(pObj->IO.Address, MFXSTM32L152_REG_ADR_FW_VERSION_MSB, data, sizeof(data));
/* Recompose MFX firmware value */
ret = (((uint32_t)data[0] << 8) | (uint32_t)data[1]);
return (int32_t)ret;
}
/**
* @brief Enable the interrupt mode for the selected IT source
* @param pObj Pointer to component object.
* @param Source: The interrupt source to be configured, could be:
* @arg MFXSTM32L152_IRQ_GPIO: IO interrupt
* @arg MFXSTM32L152_IRQ_IDD : IDD interrupt
* @arg MFXSTM32L152_IRQ_ERROR : Error interrupt
* @arg MFXSTM32L152_IRQ_TS_DET : Touch Screen Controller Touch Detected interrupt
* @arg MFXSTM32L152_IRQ_TS_NE : Touch Screen FIFO Not Empty
* @arg MFXSTM32L152_IRQ_TS_TH : Touch Screen FIFO threshold triggered
* @arg MFXSTM32L152_IRQ_TS_FULL : Touch Screen FIFO Full
* @arg MFXSTM32L152_IRQ_TS_OVF : Touch Screen FIFO Overflow
* @retval Component status
*/
int32_t MFXSTM32L152_EnableITSource(MFXSTM32L152_Object_t *pObj, uint8_t Source)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
/* Get the current value of the INT_EN register */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Set the interrupts to be Enabled */
tmp |= Source;
/* Set the register */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Disable the interrupt mode for the selected IT source
* @param pObj Pointer to component object.
* @param Source: The interrupt source to be configured, could be:
* @arg MFXSTM32L152_IRQ_GPIO: IO interrupt
* @arg MFXSTM32L152_IRQ_IDD : IDD interrupt
* @arg MFXSTM32L152_IRQ_ERROR : Error interrupt
* @arg MFXSTM32L152_IRQ_TS_DET : Touch Screen Controller Touch Detected interrupt
* @arg MFXSTM32L152_IRQ_TS_NE : Touch Screen FIFO Not Empty
* @arg MFXSTM32L152_IRQ_TS_TH : Touch Screen FIFO threshold triggered
* @arg MFXSTM32L152_IRQ_TS_FULL : Touch Screen FIFO Full
* @arg MFXSTM32L152_IRQ_TS_OVF : Touch Screen FIFO Overflow
* @retval Component status
*/
int32_t MFXSTM32L152_DisableITSource(MFXSTM32L152_Object_t *pObj, uint8_t Source)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
/* Get the current value of the INT_EN register */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Set the interrupts to be Enabled */
tmp &= ~Source;
/* Set the register */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Returns the selected Global interrupt source pending bit value
* @param pObj Pointer to component object.
* @param Source: the Global interrupt source to be checked, could be:
* @arg MFXSTM32L152_IRQ_GPIO: IO interrupt
* @arg MFXSTM32L152_IRQ_IDD : IDD interrupt
* @arg MFXSTM32L152_IRQ_ERROR : Error interrupt
* @arg MFXSTM32L152_IRQ_TS_DET : Touch Screen Controller Touch Detected interrupt
* @arg MFXSTM32L152_IRQ_TS_NE : Touch Screen FIFO Not Empty
* @arg MFXSTM32L152_IRQ_TS_TH : Touch Screen FIFO threshold triggered
* @arg MFXSTM32L152_IRQ_TS_FULL : Touch Screen FIFO Full
* @arg MFXSTM32L152_IRQ_TS_OVF : Touch Screen FIFO Overflow
* @retval The value of the checked Global interrupt source status.
*/
int32_t MFXSTM32L152_GlobalITStatus(MFXSTM32L152_Object_t *pObj, uint8_t Source)
{
int32_t ret;
uint8_t tmp;
uint8_t tmp1;
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_PENDING, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
tmp1 = tmp & Source;
ret = (int32_t)tmp1;
}
/* Return the global IT source status (pending or not) if no error */
return ret;
}
/**
* @brief Clear the selected Global interrupt pending bit(s)
* @param pObj Pointer to component object.
* @param Source: the Global interrupt source to be cleared, could be any combination
* of the below values. The acknowledge signal for MFXSTM32L152_GPIOs configured in input
* with interrupt is not on this register but in IRQ_GPI_ACK1, IRQ_GPI_ACK2 registers.
* @arg MFXSTM32L152_IRQ_IDD : IDD interrupt
* @arg MFXSTM32L152_IRQ_ERROR : Error interrupt
* @arg MFXSTM32L152_IRQ_TS_DET : Touch Screen Controller Touch Detected interrupt
* @arg MFXSTM32L152_IRQ_TS_NE : Touch Screen FIFO Not Empty
* @arg MFXSTM32L152_IRQ_TS_TH : Touch Screen FIFO threshold triggered
* @arg MFXSTM32L152_IRQ_TS_FULL : Touch Screen FIFO Full
* @arg MFXSTM32L152_IRQ_TS_OVF : Touch Screen FIFO Overflow
* /\/\ IMPORTANT NOTE /\/\ mustn't use MFXSTM32L152_IRQ_GPIO as argument, see IRQ_GPI_ACK1 and IRQ_GPI_ACK2 registers
* @retval Component status
*/
int32_t MFXSTM32L152_ClearGlobalIT(MFXSTM32L152_Object_t *pObj, uint8_t Source)
{
int32_t ret = MFXSTM32L152_OK;
/* Write 1 to the bits that have to be cleared */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_ACK, &Source, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Set the global interrupt Polarity of IRQ_OUT_PIN.
* @param pObj Pointer to component object.
* @param Polarity: the IT mode polarity, could be one of the following values:
* @arg MFXSTM32L152_OUT_PIN_POLARITY_LOW: Interrupt output line is active Low edge
* @arg MFXSTM32L152_OUT_PIN_POLARITY_HIGH: Interrupt line output is active High edge
* @retval Component status
*/
int32_t MFXSTM32L152_SetIrqOutPinPolarity(MFXSTM32L152_Object_t *pObj, uint8_t Polarity)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Mask the polarity bits */
tmp &= ~(uint8_t)0x02;
/* Modify the Interrupt Output line configuration */
tmp |= Polarity;
/* Set the new register value */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Set the global interrupt Type of IRQ_OUT_PIN.
* @param pObj Pointer to component object.
* @param Type: Interrupt line activity type, could be one of the following values:
* @arg MFXSTM32L152_OUT_PIN_TYPE_OPENDRAIN: Open Drain output Interrupt line
* @arg MFXSTM32L152_OUT_PIN_TYPE_PUSHPULL: Push Pull output Interrupt line
* @retval Component status
*/
int32_t MFXSTM32L152_SetIrqOutPinType(MFXSTM32L152_Object_t *pObj, uint8_t Type)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Mask the type bits */
tmp &= ~(uint8_t)0x01;
/* Modify the Interrupt Output line configuration */
tmp |= Type;
/* Set the new register value */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/* ------------------------------------------------------------------ */
/* ----------------------- GPIO ------------------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Start the IO functionality used and enable the AF for selected IO pin(s).
* @param pObj Pointer to component object.
* @param IO_Pin IO pin
* @retval Component status
*/
int32_t MFXSTM32L152_IO_Start(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t mode;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Set the IO Functionalities to be Enabled */
mode |= MFXSTM32L152_GPIO_EN;
/* Enable ALTERNATE functions */
/* AGPIO[0..3] can be either IDD or GPIO */
/* AGPIO[4..7] can be either TS or GPIO */
/* if IDD or TS are enabled no matter the value this bit GPIO are not available for those pins */
/* however the MFX will waste some cycles to to handle these potential GPIO (pooling, etc) */
/* so if IDD and TS are both active it is better to let ALTERNATE off (0) */
/* if however IDD or TS are not connected then set it on gives more GPIOs availability */
/* remind that AGPIO are less efficient then normal GPIO (They use pooling rather then EXTI */
if (IO_Pin > 0xFFFFU)
{
mode |= MFXSTM32L152_ALTERNATE_GPIO_EN;
}
else
{
mode &= ~MFXSTM32L152_ALTERNATE_GPIO_EN;
}
/* Write the new register value */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Initializes the IO peripheral according to the specified parameters in the MFXSTM32L152_IO_Init_t.
* @param pObj Pointer to component object.
* @param IoInit Pointer to a BSP_IO_Init_t structure that contains
* the configuration information for the specified IO pin.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_Init(MFXSTM32L152_Object_t *pObj, MFXSTM32L152_IO_Init_t *IoInit)
{
int32_t ret = MFXSTM32L152_OK;
/* IT enable/disable */
switch (IoInit->Mode)
{
case MFXSTM32L152_GPIO_MODE_OFF:
case MFXSTM32L152_GPIO_MODE_ANALOG:
case MFXSTM32L152_GPIO_MODE_INPUT:
case MFXSTM32L152_GPIO_MODE_OUTPUT_OD:
case MFXSTM32L152_GPIO_MODE_OUTPUT_PP:
ret += MFXSTM32L152_IO_DisablePinIT(pObj, IoInit->Pin); /* first disable IT */
break;
case MFXSTM32L152_GPIO_MODE_IT_RISING_EDGE:
case MFXSTM32L152_GPIO_MODE_IT_FALLING_EDGE:
case MFXSTM32L152_GPIO_MODE_IT_LOW_LEVEL:
case MFXSTM32L152_GPIO_MODE_IT_HIGH_LEVEL:
ret += MFXSTM32L152_IO_EnableIT(pObj); /* first enable IT */
break;
default:
break;
}
/* Set direction IN/OUT */
if ((IoInit->Mode == MFXSTM32L152_GPIO_MODE_OUTPUT_PP) || (IoInit->Mode == MFXSTM32L152_GPIO_MODE_OUTPUT_OD))
{
ret += MFXSTM32L152_IO_InitPin(pObj, IoInit->Pin, MFXSTM32L152_GPIO_DIR_OUT);
}
else
{
ret += MFXSTM32L152_IO_InitPin(pObj, IoInit->Pin, MFXSTM32L152_GPIO_DIR_IN);
}
/* Set Push-Pull type */
switch (IoInit->Pull)
{
case MFXSTM32L152_GPIO_NOPULL:
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IoInit->Pin,
MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
break;
case MFXSTM32L152_GPIO_PULLUP:
case MFXSTM32L152_GPIO_PULLDOWN:
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IoInit->Pin,
MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
break;
default:
break;
}
if (IoInit->Mode == MFXSTM32L152_GPIO_MODE_OUTPUT_PP)
{
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IoInit->Pin,
MFXSTM32L152_GPO_PUSH_PULL);
}
if (IoInit->Mode == MFXSTM32L152_GPIO_MODE_OUTPUT_OD)
{
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IoInit->Pin,
MFXSTM32L152_GPO_OPEN_DRAIN);
}
/* Set Pullup-Pulldown */
switch (IoInit->Pull)
{
case MFXSTM32L152_GPIO_NOPULL:
if ((IoInit->Mode == MFXSTM32L152_GPIO_MODE_INPUT) || (IoInit->Mode == MFXSTM32L152_GPIO_MODE_ANALOG))
{
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IoInit->Pin,
MFXSTM32L152_GPIO_PULL_DOWN);
}
else
{
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IoInit->Pin,
MFXSTM32L152_GPIO_PULL_UP);
}
break;
case MFXSTM32L152_GPIO_PULLUP:
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IoInit->Pin,
MFXSTM32L152_GPIO_PULL_UP);
break;
case MFXSTM32L152_GPIO_PULLDOWN:
ret += MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IoInit->Pin,
MFXSTM32L152_GPIO_PULL_DOWN);
break;
default:
break;
}
/* Set Irq event and type mode */
switch (IoInit->Mode)
{
case MFXSTM32L152_GPIO_MODE_IT_RISING_EDGE:
ret += MFXSTM32L152_IO_SetIrqEvtMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
ret += MFXSTM32L152_IO_SetIrqTypeMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
ret += MFXSTM32L152_IO_EnablePinIT(pObj, IoInit->Pin); /* last to do: enable IT */
break;
case MFXSTM32L152_GPIO_MODE_IT_FALLING_EDGE:
ret += MFXSTM32L152_IO_SetIrqEvtMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
ret += MFXSTM32L152_IO_SetIrqTypeMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
ret += MFXSTM32L152_IO_EnablePinIT(pObj, IoInit->Pin); /* last to do: enable IT */
break;
case MFXSTM32L152_GPIO_MODE_IT_HIGH_LEVEL:
ret += MFXSTM32L152_IO_SetIrqEvtMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
ret += MFXSTM32L152_IO_SetIrqTypeMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
ret += MFXSTM32L152_IO_EnablePinIT(pObj, IoInit->Pin); /* last to do: enable IT */
break;
case MFXSTM32L152_GPIO_MODE_IT_LOW_LEVEL:
ret += MFXSTM32L152_IO_SetIrqEvtMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
ret += MFXSTM32L152_IO_SetIrqTypeMode(pObj, IoInit->Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
ret += MFXSTM32L152_IO_EnablePinIT(pObj, IoInit->Pin); /* last to do: enable IT */
break;
default:
break;
}
if (ret != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Initialize the selected IO pin direction.
* @param pObj Pointer to component object.
* @param IO_Pin The IO pin to be configured. This parameter could be any
* combination of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: Where x can be from 0 to 23.
* @param Direction could be MFXSTM32L152_GPIO_DIR_IN or MFXSTM32L152_GPIO_DIR_OUT.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_InitPin(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin, uint8_t Direction)
{
int32_t ret = MFXSTM32L152_OK;
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPIO_DIR1, IO_Pin, Direction) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Set the global interrupt Type.
* @param pObj Pointer to component object.
* @param IO_Pin The IO pin to be configured. This parameter could be any
* combination of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: Where x can be from 0 to 23.
* @param Evt: Interrupt line activity type, could be one of the following values:
* @arg MFXSTM32L152_IRQ_GPI_EVT_LEVEL: Interrupt line is active in level model
* @arg MFXSTM32L152_IRQ_GPI_EVT_EDGE: Interrupt line is active in edge model
* @retval Component status
*/
int32_t MFXSTM32L152_IO_SetIrqEvtMode(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin, uint8_t Evt)
{
int32_t ret = MFXSTM32L152_OK;
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_IRQ_GPI_EVT1, IO_Pin, Evt) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Configure the Edge for which a transition is detectable for the
* selected pin.
* @param pObj Pointer to component object.
* @param IO_Pin The IO pin to be configured. This parameter could be any
* combination of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: Where x can be from 0 to 23.
* @param Evt: Interrupt line activity type, could be one of the following values:
* @arg MFXSTM32L152_IRQ_GPI_TYPE_LLFE: Interrupt line is active in Low Level or Falling Edge
* @arg MFXSTM32L152_IRQ_GPI_TYPE_HLRE: Interrupt line is active in High Level or Rising Edge
* @retval Component status
*/
int32_t MFXSTM32L152_IO_SetIrqTypeMode(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin, uint8_t Type)
{
int32_t ret = MFXSTM32L152_OK;
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_IRQ_GPI_TYPE1, IO_Pin, Type) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief When GPIO is in output mode, puts the corresponding GPO in High (1) or Low (0) level.
* @param pObj Pointer to component object.
* @param IO_Pin The output pin to be set or reset. This parameter can be one
* of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @param PinState: The new IO pin state.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_WritePin(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin, uint8_t PinState)
{
int32_t ret = MFXSTM32L152_OK;
/* Apply the bit value to the selected pin */
if (PinState != 0U)
{
/* Set the SET register */
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPO_SET1, IO_Pin, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
else
{
/* Set the CLEAR register */
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_GPO_CLR1, IO_Pin, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Return the state of the selected IO pin(s).
* @param pObj Pointer to component object.
* @param IO_Pin The output pin to read its state. This parameter can be one
* of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @retval IO pin(s) state.
*/
int32_t MFXSTM32L152_IO_ReadPin(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
uint8_t tmpreg[3];
uint32_t tmp;
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_GPIO_STATE1, &tmpreg[0], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_GPIO_STATE2, &tmpreg[1], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_GPIO_STATE3, &tmpreg[2], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
tmp = ((uint32_t)tmpreg[0] + ((uint32_t)tmpreg[1] << 8) + ((uint32_t)tmpreg[2] << 16));
tmp &= IO_Pin;
return (int32_t)(tmp);
}
/**
* @brief Enable the global IO interrupt source.
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_EnableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Enable global IO IT source */
if (MFXSTM32L152_EnableITSource(pObj, MFXSTM32L152_IRQ_GPIO) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Disable the global IO interrupt source.
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_DisableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Disable global IO IT source */
if (MFXSTM32L152_DisableITSource(pObj, MFXSTM32L152_IRQ_GPIO) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Enable interrupt mode for the selected IO pin(s).
* @param pObj Pointer to component object.
* @param IO_Pin The IO interrupt to be enabled. This parameter could be any
* combination of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_EnablePinIT(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
int32_t ret = MFXSTM32L152_OK;
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_IRQ_GPI_SRC1, IO_Pin, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Disable interrupt mode for the selected IO pin(s).
* @param pObj Pointer to component object.
* @param IO_Pin The IO interrupt to be disabled. This parameter could be any
* combination of the following values:
* @arg MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_DisablePinIT(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
int32_t ret = MFXSTM32L152_OK;
if (MFXSTM32L152_reg24_setPinValue(pObj, MFXSTM32L152_REG_ADR_IRQ_GPI_SRC1, IO_Pin, 0) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Check the status of the selected IO interrupt pending bit
* @param pObj Pointer to component object.
* @param IO_Pin The IO interrupt to be checked could be:
* @arg MFXSTM32L152_GPIO_PIN_x Where x can be from 0 to 23.
* @retval Status of the checked IO pin(s).
*/
int32_t MFXSTM32L152_IO_ITStatus(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
/* Get the Interrupt status */
uint8_t tmpreg[3];
uint32_t tmp;
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING1, &tmpreg[0], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING2, &tmpreg[1], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING3, &tmpreg[2], 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
tmp = (uint32_t)tmpreg[0] + ((uint32_t)tmpreg[1] << 8) + ((uint32_t)tmpreg[2] << 16);
tmp &= IO_Pin;
return (int32_t)tmp;
}
/**
* @brief Clear the selected IO interrupt pending bit(s). Also clears automatically MFXSTM32L152_REG_ADR_IRQ_PENDING
* @param pObj Pointer to component object.
* @param IO_Pin the IO interrupt to be cleared, could be:
* @arg MFXSTM32L152_GPIO_PIN_x: Where x can be from 0 to 23.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_ClearIT(MFXSTM32L152_Object_t *pObj, uint32_t IO_Pin)
{
/* Clear the IO IT pending bit(s) by acknowledging */
/* it cleans automatically also the Global IRQ_GPIO */
/* normally this function is called under interrupt */
uint8_t pin_0_7;
uint8_t pin_8_15;
uint8_t pin_16_23;
pin_0_7 = (uint8_t)(IO_Pin & 0x0000ffU);
pin_8_15 = (uint8_t)(IO_Pin >> 8);
pin_8_15 = (uint8_t)(pin_8_15 & 0x00ffU);
pin_16_23 = (uint8_t)(IO_Pin >> 16);
if (pin_0_7 != 0U)
{
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK1, &pin_0_7, 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
}
if (pin_8_15 != 0U)
{
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK2, &pin_8_15, 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
}
if (pin_16_23 != 0U)
{
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK3, &pin_16_23, 1) != MFXSTM32L152_OK)
{
return MFXSTM32L152_ERROR;
}
}
return MFXSTM32L152_OK;
}
/**
* @brief Enable the AF for aGPIO.
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_EnableAF(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t mode;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Enable ALTERNATE functions */
/* AGPIO[0..3] can be either IDD or GPIO */
/* AGPIO[4..7] can be either TS or GPIO */
/* if IDD or TS are enabled no matter the value this bit GPIO are not available for those pins */
/* however the MFX will waste some cycles to to handle these potential GPIO (pooling, etc) */
/* so if IDD and TS are both active it is better to let ALTERNATE disabled (0) */
/* if however IDD or TS are not connected then set it on gives more GPIOs availability */
/* remind that AGPIO are less efficient then normal GPIO (they use pooling rather then EXTI) */
mode |= MFXSTM32L152_ALTERNATE_GPIO_EN;
/* Write the new register value */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Disable the AF for aGPIO.
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IO_DisableAF(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t mode;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Enable ALTERNATE functions */
/* AGPIO[0..3] can be either IDD or GPIO */
/* AGPIO[4..7] can be either TS or GPIO */
/* if IDD or TS are enabled no matter the value this bit GPIO are not available for those pins */
/* however the MFX will waste some cycles to to handle these potential GPIO (pooling, etc) */
/* so if IDD and TS are both active it is better to let ALTERNATE disabled (0) */
/* if however IDD or TS are not connected then set it on gives more GPIOs availability */
/* remind that AGPIO are less efficient then normal GPIO (they use pooling rather then EXTI) */
mode &= ~MFXSTM32L152_ALTERNATE_GPIO_EN;
/* Write the new register value */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/* ------------------------------------------------------------------ */
/* --------------------- TOUCH SCREEN ------------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Configures the touch Screen Controller (Single point detection)
* @param pObj Pointer to component object.
* @retval Component status.
*/
int32_t MFXSTM32L152_TS_Start(MFXSTM32L152_Object_t *pObj)
{
int32_t ret;
uint8_t mode;
uint8_t tmp;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Set the Functionalities to be Enabled */
mode |= MFXSTM32L152_TS_EN;
/* Set the new register value */
ret = mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1);
/* Select 2 nF filter capacitor */
/* Configuration:
- Touch average control : 4 samples
- Touch delay time : 500 uS
- Panel driver setting time: 500 uS
*/
tmp = 0x32;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_SETTLING, &tmp, 1);
tmp = 0x05;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_TOUCH_DET_DELAY, &tmp, 1);
tmp = 0x04;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_AVE, &tmp, 1);
/* Configure the Touch FIFO threshold: single point reading */
tmp = 0x01;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_FIFO_TH, &tmp, 1);
/* Clear the FIFO memory content. */
tmp = MFXSTM32L152_TS_CLEAR_FIFO;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_FIFO_TH, &tmp, 1);
/* Touch screen control configuration :
- No window tracking index */
tmp = 0x00;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_TRACK, &tmp, 1);
/* Clear all the IT status pending bits if any */
ret += MFXSTM32L152_IO_ClearIT(pObj, 0xFFFFFF);
}
if (ret != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Return if there is touch detected or not.
* @param pObj Pointer to component object.
* @retval Touch detected state.
*/
int32_t MFXSTM32L152_TS_DetectTouch(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t state;
uint8_t fifo_level;
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_TS_FIFO_STA, &state, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
if (((state & MFXSTM32L152_TS_CTRL_STATUS) == MFXSTM32L152_TS_CTRL_STATUS) != 0U)
{
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_TS_FIFO_LEVEL, &fifo_level, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
if (fifo_level > 0U)
{
ret = 1;
}
}
}
}
return ret;
}
/**
* @brief Get the touch screen X and Y positions values
* @param pObj Pointer to component object.
* @param X: Pointer to X position value
* @param Y: Pointer to Y position value
* @retval Component status.
*/
int32_t MFXSTM32L152_TS_GetXY(MFXSTM32L152_Object_t *pObj, uint16_t *X, uint16_t *Y)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t data_xy[3];
uint8_t tmp;
pObj->IO.ReadReg(pObj->IO.Address, MFXSTM32L152_TS_XY_DATA, data_xy, sizeof(data_xy));
/* Calculate positions values */
*X = ((uint16_t)data_xy[1] << 4U) + ((uint16_t)data_xy[0] >> 4U);
*Y = ((uint16_t)data_xy[2] << 4U) + ((uint16_t)data_xy[0] & 4U);
/* Reset the FIFO memory content. */
tmp = MFXSTM32L152_TS_CLEAR_FIFO;
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_TS_FIFO_TH, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_TS_EnableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Enable global TS IT source */
if (MFXSTM32L152_EnableITSource(pObj, MFXSTM32L152_IRQ_TS_DET) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_TS_DisableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Disable global TS IT source */
if (MFXSTM32L152_DisableITSource(pObj, MFXSTM32L152_IRQ_TS_DET) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param pObj Pointer to component object.
* @retval TS interrupts status
*/
int32_t MFXSTM32L152_TS_ITStatus(MFXSTM32L152_Object_t *pObj)
{
/* Return TS interrupts status */
return (MFXSTM32L152_GlobalITStatus(pObj, MFXSTM32L152_IRQ_TS));
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_TS_ClearIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Clear the global TS IT source */
if (MFXSTM32L152_ClearGlobalIT(pObj, MFXSTM32L152_IRQ_TS) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/* ------------------------------------------------------------------ */
/* --------------------- IDD MEASUREMENT ---------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Launch IDD current measurement
* @param DeviceAddr: Device address on communication Bus
* @retval Component status.
*/
int32_t MFXSTM32L152_IDD_Start(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t mode = 0;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Set the Functionalities to be enabled */
mode |= MFXSTM32L152_IDD_CTRL_REQ;
/* Start measurement campaign */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Configures the IDD current measurement
* @param pObj Pointer to component object.
* @param MfxIddConfig: Parameters depending on hardware config.
* @retval Component status
*/
int32_t MFXSTM32L152_IDD_Config(MFXSTM32L152_Object_t *pObj, MFXSTM32L152_IDD_Config_t *MfxIddConfig)
{
int32_t ret;
uint8_t value;
uint8_t mode = 0;
/* Get the current register value */
ret = mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1);
if ((mode & MFXSTM32L152_IDD_EN) != MFXSTM32L152_IDD_EN)
{
/* Set the Functionalities to be enabled */
mode |= MFXSTM32L152_IDD_EN;
/* Set the new register value */
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_SYS_CTRL, &mode, 1);
}
/* Control register setting: number of shunts */
value = ((MfxIddConfig->ShuntNbUsed << 1) & MFXSTM32L152_IDD_CTRL_SHUNT_NB);
value |= (MfxIddConfig->VrefMeasurement & MFXSTM32L152_IDD_CTRL_VREF_DIS);
value |= (MfxIddConfig->Calibration & MFXSTM32L152_IDD_CTRL_CAL_DIS);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_CTRL, &value, 1);
/* Idd pre delay configuration: unit and value*/
value = (MfxIddConfig->PreDelayUnit & MFXSTM32L152_IDD_PREDELAY_UNIT) |
(MfxIddConfig->PreDelayValue & MFXSTM32L152_IDD_PREDELAY_VALUE);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_PRE_DELAY, &value, 1);
/* Shunt 0 register value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->Shunt0Value >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT0_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->Shunt0Value);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT0_LSB, &value, 1);
/* Shunt 1 register value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->Shunt1Value >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT1_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->Shunt1Value);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT1_LSB, &value, 1);
/* Shunt 2 register value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->Shunt2Value >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT2_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->Shunt2Value);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT2_LSB, &value, 1);
/* Shunt 3 register value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->Shunt3Value >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT3_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->Shunt3Value);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT3_LSB, &value, 1);
/* Shunt 4 register value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->Shunt4Value >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT4_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->Shunt4Value);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT4_LSB, &value, 1);
/* Shunt 0 stabilization delay */
value = (uint8_t)MfxIddConfig->Shunt0StabDelay;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SH0_STABILIZATION, &value, 1);
/* Shunt 1 stabilization delay */
value = (uint8_t)MfxIddConfig->Shunt1StabDelay;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SH1_STABILIZATION, &value, 1);
/* Shunt 2 stabilization delay */
value = (uint8_t)MfxIddConfig->Shunt2StabDelay;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SH2_STABILIZATION, &value, 1);
/* Shunt 3 stabilization delay */
value = (uint8_t)MfxIddConfig->Shunt3StabDelay;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SH3_STABILIZATION, &value, 1);
/* Shunt 4 stabilization delay */
value = (uint8_t)MfxIddConfig->Shunt4StabDelay;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SH4_STABILIZATION, &value, 1);
/* Idd ampli gain value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->AmpliGain >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_GAIN_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->AmpliGain);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_GAIN_LSB, &value, 1);
/* Idd VDD min value: MSB then LSB */
value = (uint8_t)(MfxIddConfig->VddMin >> 8);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_VDD_MIN_MSB, &value, 1);
value = (uint8_t)(MfxIddConfig->VddMin);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_VDD_MIN_LSB, &value, 1);
/* Idd number of measurements */
value = MfxIddConfig->MeasureNb;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_NBR_OF_MEAS, &value, 1);
/* Idd delta delay configuration: unit and value */
value = (MfxIddConfig->DeltaDelayUnit & MFXSTM32L152_IDD_DELTADELAY_UNIT) |
(MfxIddConfig->DeltaDelayValue & MFXSTM32L152_IDD_DELTADELAY_VALUE);
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_MEAS_DELTA_DELAY, &value, 1);
/* Idd number of shut on board */
value = MfxIddConfig->ShuntNbOnBoard;
ret += mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNTS_ON_BOARD, &value, 1);
if (ret != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief This function allows to modify number of shunt used for a measurement
* @param DeviceAddr: Device address on communication Bus
* @retval Component status.
*/
int32_t MFXSTM32L152_IDD_ConfigShuntNbLimit(MFXSTM32L152_Object_t *pObj, uint8_t ShuntNbLimit)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t mode = 0;
/* Get the current register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
/* Clear number of shunt limit */
mode &= ~(MFXSTM32L152_IDD_CTRL_SHUNT_NB);
/* Clear number of shunt limit */
mode |= ((ShuntNbLimit << 1) & MFXSTM32L152_IDD_CTRL_SHUNT_NB);
/* Write noewx desired limit */
if (mfxstm32l152_write_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_CTRL, &mode, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @brief Get Idd current value
* @param DeviceAddr: Device address on communication Bus
* @param ReadValue: Pointer on value to be read
* @retval Idd value in 10 nA.
*/
int32_t MFXSTM32L152_IDD_GetValue(MFXSTM32L152_Object_t *pObj, uint32_t *ReadValue)
{
uint8_t data[3];
pObj->IO.ReadReg(pObj->IO.Address, MFXSTM32L152_REG_ADR_IDD_VALUE_MSB, data, sizeof(data));
/* Recompose Idd current value */
*ReadValue = ((uint32_t)data[0] << 16) | ((uint32_t)data[1] << 8) | (uint32_t)data[2];
return MFXSTM32L152_OK;
}
/**
* @brief Get Last shunt used for measurement
* @param DeviceAddr: Device address on communication Bus
* @retval Last shunt used
*/
int32_t MFXSTM32L152_IDD_GetShuntUsed(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_IDD_SHUNT_USED, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Configure mfx to enable Idd interrupt
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IDD_EnableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Enable global IDD interrupt source */
if (MFXSTM32L152_EnableITSource(pObj, MFXSTM32L152_IRQ_IDD) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Clear Idd global interrupt
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_IDD_ClearIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Clear the global IDD interrupt source */
if (MFXSTM32L152_ClearGlobalIT(pObj, MFXSTM32L152_IRQ_IDD) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief get Idd interrupt status
* @param pObj Pointer to component object.
* @retval IDD interrupts status
*/
int32_t MFXSTM32L152_IDD_GetITStatus(MFXSTM32L152_Object_t *pObj)
{
/* Return IDD interrupt status */
return (MFXSTM32L152_GlobalITStatus(pObj, MFXSTM32L152_IRQ_IDD));
}
/**
* @brief disable Idd interrupt
* @param pObj Pointer to component object.
* @retval Component status.
*/
int32_t MFXSTM32L152_IDD_DisableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Disable global IDD interrupt source */
if (MFXSTM32L152_DisableITSource(pObj, MFXSTM32L152_IRQ_IDD) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/* ------------------------------------------------------------------ */
/* --------------------- ERROR MANAGEMENT --------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Read Error Source.
* @param pObj Pointer to component object.
* @retval Error message code with error source
*/
int32_t MFXSTM32L152_Error_ReadSrc(MFXSTM32L152_Object_t *pObj)
{
int32_t ret;
uint8_t tmp;
/* Get the current source register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_ERROR_SRC, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
ret = (int32_t)tmp;
}
return ret;
}
/**
* @brief Read Error Message
* @param pObj Pointer to component object.
* @retval Error message code with error source
*/
int32_t MFXSTM32L152_Error_ReadMsg(MFXSTM32L152_Object_t *pObj)
{
int32_t ret;
uint8_t tmp;
/* Get the current message register value */
if (mfxstm32l152_read_reg(&pObj->Ctx, MFXSTM32L152_REG_ADR_ERROR_MSG, &tmp, 1) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
else
{
ret = (int32_t)tmp;
}
return ret;
}
/**
* @brief Enable Error global interrupt
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_Error_EnableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Enable global Error interrupt source */
if (MFXSTM32L152_EnableITSource(pObj, MFXSTM32L152_IRQ_ERROR) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Clear Error global interrupt
* @param pObj Pointer to component object.
* @retval Component status
*/
int32_t MFXSTM32L152_Error_ClearIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Clear the global Error interrupt source */
if (MFXSTM32L152_ClearGlobalIT(pObj, MFXSTM32L152_IRQ_ERROR) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief get Error interrupt status
* @param pObj Pointer to component object.
* @retval Error interrupts status
*/
int32_t MFXSTM32L152_Error_GetITStatus(MFXSTM32L152_Object_t *pObj)
{
/* Return Error interrupt status */
return (MFXSTM32L152_GlobalITStatus(pObj, MFXSTM32L152_IRQ_ERROR));
}
/**
* @brief disable Error interrupt
* @param pObj Pointer to component object.
* @retval Component status.
*/
int32_t MFXSTM32L152_Error_DisableIT(MFXSTM32L152_Object_t *pObj)
{
int32_t ret = MFXSTM32L152_OK;
/* Disable global Error interrupt source */
if (MFXSTM32L152_DisableITSource(pObj, MFXSTM32L152_IRQ_ERROR) != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Register Bus Io to component
* @param Component object pointer
* @retval Component status
*/
int32_t MFXSTM32L152_RegisterBusIO(MFXSTM32L152_Object_t *pObj, MFXSTM32L152_IO_t *pIO)
{
int32_t ret;
if (pObj == NULL)
{
ret = MFXSTM32L152_ERROR;
}
else
{
pObj->IO.Init = pIO->Init;
pObj->IO.DeInit = pIO->DeInit;
pObj->IO.Address = pIO->Address;
pObj->IO.WriteReg = pIO->WriteReg;
pObj->IO.ReadReg = pIO->ReadReg;
pObj->IO.GetTick = pIO->GetTick;
pObj->Ctx.ReadReg = MFXSTM32L152_ReadRegWrap;
pObj->Ctx.WriteReg = MFXSTM32L152_WriteRegWrap;
pObj->Ctx.handle = pObj;
if (pObj->IO.Init != NULL)
{
ret = pObj->IO.Init();
}
else
{
ret = MFXSTM32L152_ERROR;
}
}
return ret;
}
/**
* @}
*/
/** @defgroup MFXSTM32L152_Private_Functions MFXSTM32L152 Private Functions
* @{
*/
/**
* @brief Internal routine
* @param pObj Pointer to component object.
* @param RegisterAddr: Register Address
* @param PinPosition: Pin [0:23]
* @param PinValue: 0/1
* @retval Component status
*/
static int32_t MFXSTM32L152_reg24_setPinValue(MFXSTM32L152_Object_t *pObj, uint8_t RegisterAddr, uint32_t PinPosition,
uint8_t PinValue)
{
int32_t ret = MFXSTM32L152_OK;
uint8_t tmp;
uint8_t pin_0_7;
uint8_t pin_8_15;
uint8_t pin_16_23;
pin_0_7 = (uint8_t)(PinPosition & 0x0000ffU);
pin_8_15 = (uint8_t)(PinPosition >> 8);
pin_8_15 = (uint8_t)(pin_8_15 & 0x00ffU);
pin_16_23 = (uint8_t)(PinPosition >> 16);
if (pin_0_7 != 0U)
{
/* Get the current register value */
ret += mfxstm32l152_read_reg(&pObj->Ctx, RegisterAddr, &tmp, 1);
/* Set the selected pin direction */
if (PinValue != 0U)
{
tmp |= (uint8_t)pin_0_7;
}
else
{
tmp &= ~(uint8_t)pin_0_7;
}
/* Set the new register value */
ret += mfxstm32l152_write_reg(&pObj->Ctx, RegisterAddr, &tmp, 1);
}
if (pin_8_15 != 0U)
{
/* Get the current register value */
ret += mfxstm32l152_read_reg(&pObj->Ctx, ((uint16_t)RegisterAddr + 1U), &tmp, 1);
/* Set the selected pin direction */
if (PinValue != 0U)
{
tmp |= (uint8_t)pin_8_15;
}
else
{
tmp &= ~(uint8_t)pin_8_15;
}
/* Set the new register value */
ret += mfxstm32l152_write_reg(&pObj->Ctx, ((uint16_t)RegisterAddr + 1U), &tmp, 1);
}
if (pin_16_23 != 0U)
{
/* Get the current register value */
ret += mfxstm32l152_read_reg(&pObj->Ctx, ((uint16_t)RegisterAddr + 2U), &tmp, 1);
/* Set the selected pin direction */
if (PinValue != 0U)
{
tmp |= (uint8_t)pin_16_23;
}
else
{
tmp &= ~(uint8_t)pin_16_23;
}
/* Set the new register value */
ret += mfxstm32l152_write_reg(&pObj->Ctx, ((uint16_t)RegisterAddr + 2U), &tmp, 1);
}
if (ret != MFXSTM32L152_OK)
{
ret = MFXSTM32L152_ERROR;
}
return ret;
}
/**
* @brief Wrap MFXSTM32L152 read function to Bus IO function
* @param handle Component object handle
* @param Reg The target register address to write
* @param pData The target register value to be written
* @param Length buffer size to be written
* @retval error status
*/
static int32_t MFXSTM32L152_ReadRegWrap(void *handle, uint16_t Reg, uint8_t *pData, uint16_t Length)
{
MFXSTM32L152_Object_t *pObj = (MFXSTM32L152_Object_t *)handle;
return pObj->IO.ReadReg(pObj->IO.Address, Reg, pData, Length);
}
/**
* @brief Wrap MFXSTM32L152 write function to Bus IO function
* @param handle Component object handle
* @param Reg The target register address to write
* @param pData The target register value to be written
* @param Length buffer size to be written
* @retval error status
*/
static int32_t MFXSTM32L152_WriteRegWrap(void *handle, uint16_t Reg, uint8_t *pData, uint16_t Length)
{
MFXSTM32L152_Object_t *pObj = (MFXSTM32L152_Object_t *)handle;
return pObj->IO.WriteReg(pObj->IO.Address, Reg, pData, Length);
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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