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eez-flow-template-stm32f746.../Drivers/BSP/Components/mfxstm32l152/mfxstm32l152.c

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2 years ago
/**
******************************************************************************
* @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>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "mfxstm32l152.h"
/** @addtogroup BSP
* @{
*/
/** @addtogroup Component
* @{
*/
/** @defgroup MFXSTM32L152
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Types_Definitions
* @{
*/
/* Private define ------------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Defines
* @{
*/
#define MFXSTM32L152_MAX_INSTANCE 3
/* Private macro -------------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Macros
* @{
*/
/* Private variables ---------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Variables
* @{
*/
/* Touch screen driver structure initialization */
TS_DrvTypeDef mfxstm32l152_ts_drv =
{
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 */
IO_DrvTypeDef mfxstm32l152_io_drv =
{
mfxstm32l152_Init,
mfxstm32l152_ReadID,
mfxstm32l152_Reset,
mfxstm32l152_IO_Start,
mfxstm32l152_IO_Config,
mfxstm32l152_IO_WritePin,
mfxstm32l152_IO_ReadPin,
mfxstm32l152_IO_EnableIT,
mfxstm32l152_IO_DisableIT,
mfxstm32l152_IO_ITStatus,
mfxstm32l152_IO_ClearIT,
};
/* IDD driver structure initialization */
IDD_DrvTypeDef mfxstm32l152_idd_drv =
{
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_ClearIT,
mfxstm32l152_IDD_GetITStatus,
mfxstm32l152_IDD_DisableIT,
mfxstm32l152_Error_EnableIT,
mfxstm32l152_Error_ClearIT,
mfxstm32l152_Error_GetITStatus,
mfxstm32l152_Error_DisableIT,
mfxstm32l152_Error_ReadSrc,
mfxstm32l152_Error_ReadMsg
};
/* mfxstm32l152 instances by address */
uint8_t mfxstm32l152[MFXSTM32L152_MAX_INSTANCE] = {0};
/**
* @}
*/
/* Private function prototypes -----------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Function_Prototypes
* @{
*/
static uint8_t mfxstm32l152_GetInstance(uint16_t DeviceAddr);
static uint8_t mfxstm32l152_ReleaseInstance(uint16_t DeviceAddr);
static void mfxstm32l152_reg24_setPinValue(uint16_t DeviceAddr, uint8_t RegisterAddr, uint32_t PinPosition, uint8_t PinValue );
/* Private functions ---------------------------------------------------------*/
/** @defgroup MFXSTM32L152_Private_Functions
* @{
*/
/**
* @brief Initialize the mfxstm32l152 and configure the needed hardware resources
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_Init(uint16_t DeviceAddr)
{
uint8_t instance;
uint8_t empty;
/* Check if device instance already exists */
instance = mfxstm32l152_GetInstance(DeviceAddr);
/* To prevent double initialization */
if(instance == 0xFF)
{
/* Look for empty instance */
empty = mfxstm32l152_GetInstance(0);
if(empty < MFXSTM32L152_MAX_INSTANCE)
{
/* Register the current device instance */
mfxstm32l152[empty] = DeviceAddr;
/* Initialize IO BUS layer */
MFX_IO_Init();
}
}
mfxstm32l152_SetIrqOutPinPolarity(DeviceAddr, MFXSTM32L152_OUT_PIN_POLARITY_HIGH);
mfxstm32l152_SetIrqOutPinType(DeviceAddr, MFXSTM32L152_OUT_PIN_TYPE_PUSHPULL);
}
/**
* @brief DeInitialize the mfxstm32l152 and unconfigure the needed hardware resources
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_DeInit(uint16_t DeviceAddr)
{
uint8_t instance;
/* release existing instance */
instance = mfxstm32l152_ReleaseInstance(DeviceAddr);
/* De-Init only if instance was previously registered */
if(instance != 0xFF)
{
/* De-Initialize IO BUS layer */
MFX_IO_DeInit();
}
}
/**
* @brief Reset the mfxstm32l152 by Software.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_Reset(uint16_t DeviceAddr)
{
/* Soft Reset */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, MFXSTM32L152_SWRST);
/* Wait for a delay to ensure registers erasing */
MFX_IO_Delay(10);
}
/**
* @brief Put mfxstm32l152 Device in Low Power standby mode
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_LowPower(uint16_t DeviceAddr)
{
/* Enter standby mode */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, MFXSTM32L152_STANDBY);
/* enable wakeup pin */
MFX_IO_EnableWakeupPin();
}
/**
* @brief WakeUp mfxstm32l152 from standby mode
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_WakeUp(uint16_t DeviceAddr)
{
uint8_t instance;
/* Check if device instance already exists */
instance = mfxstm32l152_GetInstance(DeviceAddr);
/* if instance does not exist, first initialize pins*/
if(instance == 0xFF)
{
/* enable wakeup pin */
MFX_IO_EnableWakeupPin();
}
/* toggle wakeup pin */
MFX_IO_Wakeup();
}
/**
* @brief Read the MFXSTM32L152 IO Expander device ID.
* @param DeviceAddr: Device address on communication Bus.
* @retval The Device ID (two bytes).
*/
uint16_t mfxstm32l152_ReadID(uint16_t DeviceAddr)
{
uint8_t id;
/* Wait for a delay to ensure the state of registers */
MFX_IO_Delay(1);
/* Initialize IO BUS layer */
MFX_IO_Init();
id = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_ID);
/* Return the device ID value */
return (id);
}
/**
* @brief Read the MFXSTM32L152 device firmware version.
* @param DeviceAddr: Device address on communication Bus.
* @retval The Device FW version (two bytes).
*/
uint16_t mfxstm32l152_ReadFwVersion(uint16_t DeviceAddr)
{
uint8_t data[2];
MFX_IO_ReadMultiple((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_FW_VERSION_MSB, data, sizeof(data)) ;
/* Recompose MFX firmware value */
return ((data[0] << 8) | data[1]);
}
/**
* @brief Enable the interrupt mode for the selected IT source
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_EnableITSource(uint16_t DeviceAddr, uint8_t Source)
{
uint8_t tmp = 0;
/* Get the current value of the INT_EN register */
tmp = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_SRC_EN);
/* Set the interrupts to be Enabled */
tmp |= Source;
/* Set the register */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, tmp);
}
/**
* @brief Disable the interrupt mode for the selected IT source
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_DisableITSource(uint16_t DeviceAddr, uint8_t Source)
{
uint8_t tmp = 0;
/* Get the current value of the INT_EN register */
tmp = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_SRC_EN);
/* Set the interrupts to be Enabled */
tmp &= ~Source;
/* Set the register */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_SRC_EN, tmp);
}
/**
* @brief Returns the selected Global interrupt source pending bit value
* @param DeviceAddr: Device address on communication Bus.
* @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.
*/
uint8_t mfxstm32l152_GlobalITStatus(uint16_t DeviceAddr, uint8_t Source)
{
/* Return the global IT source status (pending or not)*/
return((MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_PENDING) & Source));
}
/**
* @brief Clear the selected Global interrupt pending bit(s)
* @param DeviceAddr: Device address on communication Bus.
* @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 /\/\ must not use MFXSTM32L152_IRQ_GPIO as argument, see IRQ_GPI_ACK1 and IRQ_GPI_ACK2 registers
* @retval None
*/
void mfxstm32l152_ClearGlobalIT(uint16_t DeviceAddr, uint8_t Source)
{
/* Write 1 to the bits that have to be cleared */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_ACK, Source);
}
/**
* @brief Set the global interrupt Polarity of IRQ_OUT_PIN.
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_SetIrqOutPinPolarity(uint16_t DeviceAddr, uint8_t Polarity)
{
uint8_t tmp = 0;
/* Get the current register value */
tmp = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT);
/* Mask the polarity bits */
tmp &= ~(uint8_t)0x02;
/* Modify the Interrupt Output line configuration */
tmp |= Polarity;
/* Set the new register value */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, tmp);
/* Wait for 1 ms for MFX to change IRQ_out pin config, before activate it */
MFX_IO_Delay(1);
}
/**
* @brief Set the global interrupt Type of IRQ_OUT_PIN.
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_SetIrqOutPinType(uint16_t DeviceAddr, uint8_t Type)
{
uint8_t tmp = 0;
/* Get the current register value */
tmp = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT);
/* Mask the type bits */
tmp &= ~(uint8_t)0x01;
/* Modify the Interrupt Output line configuration */
tmp |= Type;
/* Set the new register value */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_MFX_IRQ_OUT, tmp);
/* Wait for 1 ms for MFX to change IRQ_out pin config, before activate it */
MFX_IO_Delay(1);
}
/* ------------------------------------------------------------------ */
/* ----------------------- GPIO ------------------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Start the IO functionality used and enable the AF for selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @param AF_en: 0 to disable, else enabled.
* @retval None
*/
void mfxstm32l152_IO_Start(uint16_t DeviceAddr, uint32_t IO_Pin)
{
uint8_t mode;
/* Get the current register value */
mode = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL);
/* 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 > 0xFFFF)
{
mode |= MFXSTM32L152_ALTERNATE_GPIO_EN;
}
else
{
mode &= ~MFXSTM32L152_ALTERNATE_GPIO_EN;
}
/* Write the new register value */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, mode);
/* Wait for 1 ms for MFX to change IRQ_out pin config, before activate it */
MFX_IO_Delay(1);
}
/**
* @brief Configures 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 MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @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
* @arg IO_MODE_IT_LOW_LEVEL
* @arg IO_MODE_IT_HIGH_LEVEL
* @arg IO_MODE_INPUT_PU,
* @arg IO_MODE_INPUT_PD,
* @arg IO_MODE_OUTPUT_OD_PU,
* @arg IO_MODE_OUTPUT_OD_PD,
* @arg IO_MODE_OUTPUT_PP_PU,
* @arg IO_MODE_OUTPUT_PP_PD,
* @arg IO_MODE_IT_RISING_EDGE_PU
* @arg IO_MODE_IT_FALLING_EDGE_PU
* @arg IO_MODE_IT_LOW_LEVEL_PU
* @arg IO_MODE_IT_HIGH_LEVEL_PU
* @arg IO_MODE_IT_RISING_EDGE_PD
* @arg IO_MODE_IT_FALLING_EDGE_PD
* @arg IO_MODE_IT_LOW_LEVEL_PD
* @arg IO_MODE_IT_HIGH_LEVEL_PD
* @retval None
*/
uint8_t mfxstm32l152_IO_Config(uint16_t DeviceAddr, uint32_t IO_Pin, IO_ModeTypedef IO_Mode)
{
uint8_t error_code = 0;
/* Configure IO pin according to selected IO mode */
switch(IO_Mode)
{
case IO_MODE_OFF: /* Off or analog mode */
case IO_MODE_ANALOG: /* Off or analog mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
break;
case IO_MODE_INPUT: /* Input mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
break;
case IO_MODE_INPUT_PU: /* Input mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
break;
case IO_MODE_INPUT_PD: /* Input mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
break;
case IO_MODE_OUTPUT: /* Output mode */
case IO_MODE_OUTPUT_PP_PD: /* Output mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_OUT);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPO_PUSH_PULL);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
break;
case IO_MODE_OUTPUT_PP_PU: /* Output mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_OUT);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPO_PUSH_PULL);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
break;
case IO_MODE_OUTPUT_OD_PD: /* Output mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_OUT);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPO_OPEN_DRAIN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
break;
case IO_MODE_OUTPUT_OD_PU: /* Output mode */
mfxstm32l152_IO_DisablePinIT(DeviceAddr, IO_Pin); /* first disable IT */
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_OUT);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPO_OPEN_DRAIN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
break;
case IO_MODE_IT_RISING_EDGE: /* Interrupt rising edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_RISING_EDGE_PU: /* Interrupt rising edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_RISING_EDGE_PD: /* Interrupt rising edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_FALLING_EDGE: /* Interrupt falling edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_FALLING_EDGE_PU: /* Interrupt falling edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_FALLING_EDGE_PD: /* Interrupt falling edge mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_EDGE);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_LOW_LEVEL: /* Low level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_LOW_LEVEL_PU: /* Low level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_LOW_LEVEL_PD: /* Low level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_LLFE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_HIGH_LEVEL: /* High level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITHOUT_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_HIGH_LEVEL_PU: /* High level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_UP);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
case IO_MODE_IT_HIGH_LEVEL_PD: /* High level interrupt mode */
mfxstm32l152_IO_EnableIT(DeviceAddr);
mfxstm32l152_IO_InitPin(DeviceAddr, IO_Pin, MFXSTM32L152_GPIO_DIR_IN);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_TYPE1, IO_Pin, MFXSTM32L152_GPI_WITH_PULL_RESISTOR);
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_PUPD1, IO_Pin, MFXSTM32L152_GPIO_PULL_DOWN);
mfxstm32l152_IO_SetIrqEvtMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_EVT_LEVEL);
mfxstm32l152_IO_SetIrqTypeMode(DeviceAddr, IO_Pin, MFXSTM32L152_IRQ_GPI_TYPE_HLRE);
mfxstm32l152_IO_EnablePinIT(DeviceAddr, IO_Pin); /* last to do: enable IT */
break;
default:
error_code = (uint8_t) IO_Mode;
break;
}
return error_code;
}
/**
* @brief Initialize the selected IO pin direction.
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_InitPin(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t Direction)
{
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_DIR1, IO_Pin, Direction);
}
/**
* @brief Set the global interrupt Type.
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_SetIrqEvtMode(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t Evt)
{
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_EVT1, IO_Pin, Evt);
MFX_IO_Delay(1);
}
/**
* @brief Configure the Edge for which a transition is detectable for the
* selected pin.
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_SetIrqTypeMode(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t Type)
{
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_TYPE1, IO_Pin, Type);
MFX_IO_Delay(1);
}
/**
* @brief When GPIO is in output mode, puts the corresponding GPO in High (1) or Low (0) level.
* @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 MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @param PinState: The new IO pin state.
* @retval None
*/
void mfxstm32l152_IO_WritePin(uint16_t DeviceAddr, uint32_t IO_Pin, uint8_t PinState)
{
/* Apply the bit value to the selected pin */
if (PinState != 0)
{
/* Set the SET register */
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPO_SET1, IO_Pin, 1);
}
else
{
/* Set the CLEAR register */
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_GPO_CLR1, IO_Pin, 1);
}
}
/**
* @brief Return the state of the selected IO pin(s).
* @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 MFXSTM32L152_GPIO_PIN_x: where x can be from 0 to 23.
* @retval IO pin(s) state.
*/
uint32_t mfxstm32l152_IO_ReadPin(uint16_t DeviceAddr, uint32_t IO_Pin)
{
uint32_t tmp1 = 0;
uint32_t tmp2 = 0;
uint32_t tmp3 = 0;
if(IO_Pin & 0x000000FF)
{
tmp1 = (uint32_t) MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_STATE1);
}
if(IO_Pin & 0x0000FF00)
{
tmp2 = (uint32_t) MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_STATE2);
}
if(IO_Pin & 0x00FF0000)
{
tmp3 = (uint32_t) MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_GPIO_STATE3);
}
tmp3 = tmp1 + (tmp2 << 8) + (tmp3 << 16);
return(tmp3 & IO_Pin);
}
/**
* @brief Enable the global IO interrupt source.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IO_EnableIT(uint16_t DeviceAddr)
{
MFX_IO_ITConfig();
/* Enable global IO IT source */
mfxstm32l152_EnableITSource(DeviceAddr, MFXSTM32L152_IRQ_GPIO);
}
/**
* @brief Disable the global IO interrupt source.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IO_DisableIT(uint16_t DeviceAddr)
{
/* Disable global IO IT source */
mfxstm32l152_DisableITSource(DeviceAddr, MFXSTM32L152_IRQ_GPIO);
}
/**
* @brief Enable interrupt mode for the selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_EnablePinIT(uint16_t DeviceAddr, uint32_t IO_Pin)
{
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_SRC1, IO_Pin, 1);
}
/**
* @brief Disable interrupt mode for the selected IO pin(s).
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_DisablePinIT(uint16_t DeviceAddr, uint32_t IO_Pin)
{
mfxstm32l152_reg24_setPinValue(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_SRC1, IO_Pin, 0);
}
/**
* @brief Check the status of the selected IO interrupt pending bit
* @param DeviceAddr: Device address on communication Bus.
* @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).
*/
uint32_t mfxstm32l152_IO_ITStatus(uint16_t DeviceAddr, uint32_t IO_Pin)
{
/* Get the Interrupt status */
uint8_t tmp1 = 0;
uint16_t tmp2 = 0;
uint32_t tmp3 = 0;
if(IO_Pin & 0xFF)
{
tmp1 = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING1);
}
if(IO_Pin & 0xFFFF00)
{
tmp2 = (uint16_t) MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING2);
}
if(IO_Pin & 0xFFFF0000)
{
tmp3 = (uint32_t) MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_PENDING3);
}
tmp3 = tmp1 + (tmp2 << 8) + (tmp3 << 16);
return(tmp3 & IO_Pin);
}
/**
* @brief Clear the selected IO interrupt pending bit(s). It clear automatically also the general MFXSTM32L152_REG_ADR_IRQ_PENDING
* @param DeviceAddr: Device address on communication Bus.
* @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 None
*/
void mfxstm32l152_IO_ClearIT(uint16_t DeviceAddr, 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, pin_8_15, pin_16_23;
pin_0_7 = IO_Pin & 0x0000ff;
pin_8_15 = IO_Pin >> 8;
pin_8_15 = pin_8_15 & 0x00ff;
pin_16_23 = IO_Pin >> 16;
if (pin_0_7)
{
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK1, pin_0_7);
}
if (pin_8_15)
{
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK2, pin_8_15);
}
if (pin_16_23)
{
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_IRQ_GPI_ACK3, pin_16_23);
}
}
/**
* @brief Enable the AF for aGPIO.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IO_EnableAF(uint16_t DeviceAddr)
{
uint8_t mode;
/* Get the current register value */
mode = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL);
/* 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 */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, mode);
}
/**
* @brief Disable the AF for aGPIO.
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IO_DisableAF(uint16_t DeviceAddr)
{
uint8_t mode;
/* Get the current register value */
mode = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL);
/* 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 */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, mode);
}
/* ------------------------------------------------------------------ */
/* --------------------- TOUCH SCREEN ------------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Configures the touch Screen Controller (Single point detection)
* @param DeviceAddr: Device address on communication Bus.
* @retval None.
*/
void mfxstm32l152_TS_Start(uint16_t DeviceAddr)
{
uint8_t mode;
/* Get the current register value */
mode = MFX_IO_Read(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL);
/* Set the Functionalities to be Enabled */
mode |= MFXSTM32L152_TS_EN;
/* Set the new register value */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, mode);
/* Wait for 2 ms */
MFX_IO_Delay(2);
/* Select 2 nF filter capacitor */
/* Configuration:
- Touch average control : 4 samples
- Touch delay time : 500 uS
- Panel driver setting time: 500 uS
*/
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_SETTLING, 0x32);
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_TOUCH_DET_DELAY, 0x5);
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_AVE, 0x04);
/* Configure the Touch FIFO threshold: single point reading */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_FIFO_TH, 0x01);
/* Clear the FIFO memory content. */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_FIFO_TH, MFXSTM32L152_TS_CLEAR_FIFO);
/* Touch screen control configuration :
- No window tracking index
*/
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_TRACK, 0x00);
/* Clear all the IT status pending bits if any */
mfxstm32l152_IO_ClearIT(DeviceAddr, 0xFFFFFF);
/* Wait for 1 ms delay */
MFX_IO_Delay(1);
}
/**
* @brief Return if there is touch detected or not.
* @param DeviceAddr: Device address on communication Bus.
* @retval Touch detected state.
*/
uint8_t mfxstm32l152_TS_DetectTouch(uint16_t DeviceAddr)
{
uint8_t state;
uint8_t ret = 0;
state = MFX_IO_Read(DeviceAddr, MFXSTM32L152_TS_FIFO_STA);
state = ((state & (uint8_t)MFXSTM32L152_TS_CTRL_STATUS) == (uint8_t)MFXSTM32L152_TS_CTRL_STATUS);
if(state > 0)
{
if(MFX_IO_Read(DeviceAddr, MFXSTM32L152_TS_FIFO_LEVEL) > 0)
{
ret = 1;
}
}
return ret;
}
/**
* @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 mfxstm32l152_TS_GetXY(uint16_t DeviceAddr, uint16_t *X, uint16_t *Y)
{
uint8_t data_xy[3];
MFX_IO_ReadMultiple(DeviceAddr, MFXSTM32L152_TS_XY_DATA, data_xy, sizeof(data_xy)) ;
/* Calculate positions values */
*X = (data_xy[1]<<4) + (data_xy[0]>>4);
*Y = (data_xy[2]<<4) + (data_xy[0]&4);
/* Reset the FIFO memory content. */
MFX_IO_Write(DeviceAddr, MFXSTM32L152_TS_FIFO_TH, MFXSTM32L152_TS_CLEAR_FIFO);
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_TS_EnableIT(uint16_t DeviceAddr)
{
MFX_IO_ITConfig();
/* Enable global TS IT source */
mfxstm32l152_EnableITSource(DeviceAddr, MFXSTM32L152_IRQ_TS_DET);
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_TS_DisableIT(uint16_t DeviceAddr)
{
/* Disable global TS IT source */
mfxstm32l152_DisableITSource(DeviceAddr, MFXSTM32L152_IRQ_TS_DET);
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param DeviceAddr: Device address on communication Bus.
* @retval TS interrupts status
*/
uint8_t mfxstm32l152_TS_ITStatus(uint16_t DeviceAddr)
{
/* Return TS interrupts status */
return(mfxstm32l152_GlobalITStatus(DeviceAddr, MFXSTM32L152_IRQ_TS));
}
/**
* @brief Configure the selected source to generate a global interrupt or not
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_TS_ClearIT(uint16_t DeviceAddr)
{
/* Clear the global TS IT source */
mfxstm32l152_ClearGlobalIT(DeviceAddr, MFXSTM32L152_IRQ_TS);
}
/* ------------------------------------------------------------------ */
/* --------------------- IDD MEASUREMENT ---------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Launch IDD current measurement
* @param DeviceAddr: Device address on communication Bus
* @retval None.
*/
void mfxstm32l152_IDD_Start(uint16_t DeviceAddr)
{
uint8_t mode = 0;
/* Get the current register value */
mode = MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_CTRL);
/* Set the Functionalities to be enabled */
mode |= MFXSTM32L152_IDD_CTRL_REQ;
/* Start measurement campaign */
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_CTRL, mode);
}
/**
* @brief Configures the IDD current measurement
* @param DeviceAddr: Device address on communication Bus.
* @param MfxIddConfig: Parameters depending on hardware config.
* @retval None
*/
void mfxstm32l152_IDD_Config(uint16_t DeviceAddr, IDD_ConfigTypeDef MfxIddConfig)
{
uint8_t value = 0;
uint8_t mode = 0;
/* Get the current register value */
mode = MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL);
if((mode & MFXSTM32L152_IDD_EN) != MFXSTM32L152_IDD_EN)
{
/* Set the Functionalities to be enabled */
mode |= MFXSTM32L152_IDD_EN;
/* Set the new register value */
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_SYS_CTRL, mode);
}
/* 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);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_CTRL, value);
/* Idd pre delay configuration: unit and value*/
value = (MfxIddConfig.PreDelayUnit & MFXSTM32L152_IDD_PREDELAY_UNIT) |
(MfxIddConfig.PreDelayValue & MFXSTM32L152_IDD_PREDELAY_VALUE);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_PRE_DELAY, value);
/* Shunt 0 register value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.Shunt0Value >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT0_MSB, value);
value = (uint8_t) (MfxIddConfig.Shunt0Value);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT0_LSB, value);
/* Shunt 1 register value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.Shunt1Value >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT1_MSB, value);
value = (uint8_t) (MfxIddConfig.Shunt1Value);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT1_LSB, value);
/* Shunt 2 register value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.Shunt2Value >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT2_MSB, value);
value = (uint8_t) (MfxIddConfig.Shunt2Value);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT2_LSB, value);
/* Shunt 3 register value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.Shunt3Value >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT3_MSB, value);
value = (uint8_t) (MfxIddConfig.Shunt3Value);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT3_LSB, value);
/* Shunt 4 register value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.Shunt4Value >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT4_MSB, value);
value = (uint8_t) (MfxIddConfig.Shunt4Value);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT4_LSB, value);
/* Shunt 0 stabilization delay */
value = MfxIddConfig.Shunt0StabDelay;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SH0_STABILIZATION, value);
/* Shunt 1 stabilization delay */
value = MfxIddConfig.Shunt1StabDelay;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SH1_STABILIZATION, value);
/* Shunt 2 stabilization delay */
value = MfxIddConfig.Shunt2StabDelay;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SH2_STABILIZATION, value);
/* Shunt 3 stabilization delay */
value = MfxIddConfig.Shunt3StabDelay;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SH3_STABILIZATION, value);
/* Shunt 4 stabilization delay */
value = MfxIddConfig.Shunt4StabDelay;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SH4_STABILIZATION, value);
/* Idd ampli gain value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.AmpliGain >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_GAIN_MSB, value);
value = (uint8_t) (MfxIddConfig.AmpliGain);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_GAIN_LSB, value);
/* Idd VDD min value: MSB then LSB */
value = (uint8_t) (MfxIddConfig.VddMin >> 8);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_VDD_MIN_MSB, value);
value = (uint8_t) (MfxIddConfig.VddMin);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_VDD_MIN_LSB, value);
/* Idd number of measurements */
value = MfxIddConfig.MeasureNb;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_NBR_OF_MEAS, value);
/* Idd delta delay configuration: unit and value */
value = (MfxIddConfig.DeltaDelayUnit & MFXSTM32L152_IDD_DELTADELAY_UNIT) |
(MfxIddConfig.DeltaDelayValue & MFXSTM32L152_IDD_DELTADELAY_VALUE);
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_MEAS_DELTA_DELAY, value);
/* Idd number of shut on board */
value = MfxIddConfig.ShuntNbOnBoard;
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNTS_ON_BOARD, value);
}
/**
* @brief This function allows to modify number of shunt used for a measurement
* @param DeviceAddr: Device address on communication Bus
* @retval None.
*/
void mfxstm32l152_IDD_ConfigShuntNbLimit(uint16_t DeviceAddr, uint8_t ShuntNbLimit)
{
uint8_t mode = 0;
/* Get the current register value */
mode = MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_CTRL);
/* 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 */
MFX_IO_Write((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_CTRL, mode);
}
/**
* @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.
*/
void mfxstm32l152_IDD_GetValue(uint16_t DeviceAddr, uint32_t *ReadValue)
{
uint8_t data[3];
MFX_IO_ReadMultiple((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_VALUE_MSB, data, sizeof(data)) ;
/* Recompose Idd current value */
*ReadValue = (data[0] << 16) | (data[1] << 8) | data[2];
}
/**
* @brief Get Last shunt used for measurement
* @param DeviceAddr: Device address on communication Bus
* @retval Last shunt used
*/
uint8_t mfxstm32l152_IDD_GetShuntUsed(uint16_t DeviceAddr)
{
return(MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_IDD_SHUNT_USED));
}
/**
* @brief Configure mfx to enable Idd interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IDD_EnableIT(uint16_t DeviceAddr)
{
MFX_IO_ITConfig();
/* Enable global IDD interrupt source */
mfxstm32l152_EnableITSource(DeviceAddr, MFXSTM32L152_IRQ_IDD);
}
/**
* @brief Clear Idd global interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_IDD_ClearIT(uint16_t DeviceAddr)
{
/* Clear the global IDD interrupt source */
mfxstm32l152_ClearGlobalIT(DeviceAddr, MFXSTM32L152_IRQ_IDD);
}
/**
* @brief get Idd interrupt status
* @param DeviceAddr: Device address on communication Bus.
* @retval IDD interrupts status
*/
uint8_t mfxstm32l152_IDD_GetITStatus(uint16_t DeviceAddr)
{
/* Return IDD interrupt status */
return(mfxstm32l152_GlobalITStatus(DeviceAddr, MFXSTM32L152_IRQ_IDD));
}
/**
* @brief disable Idd interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None.
*/
void mfxstm32l152_IDD_DisableIT(uint16_t DeviceAddr)
{
/* Disable global IDD interrupt source */
mfxstm32l152_DisableITSource(DeviceAddr, MFXSTM32L152_IRQ_IDD);
}
/* ------------------------------------------------------------------ */
/* --------------------- ERROR MANAGEMENT --------------------------- */
/* ------------------------------------------------------------------ */
/**
* @brief Read Error Source.
* @param DeviceAddr: Device address on communication Bus.
* @retval Error message code with error source
*/
uint8_t mfxstm32l152_Error_ReadSrc(uint16_t DeviceAddr)
{
/* Get the current source register value */
return(MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_ERROR_SRC));
}
/**
* @brief Read Error Message
* @param DeviceAddr: Device address on communication Bus.
* @retval Error message code with error source
*/
uint8_t mfxstm32l152_Error_ReadMsg(uint16_t DeviceAddr)
{
/* Get the current message register value */
return(MFX_IO_Read((uint8_t) DeviceAddr, MFXSTM32L152_REG_ADR_ERROR_MSG));
}
/**
* @brief Enable Error global interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_Error_EnableIT(uint16_t DeviceAddr)
{
MFX_IO_ITConfig();
/* Enable global Error interrupt source */
mfxstm32l152_EnableITSource(DeviceAddr, MFXSTM32L152_IRQ_ERROR);
}
/**
* @brief Clear Error global interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None
*/
void mfxstm32l152_Error_ClearIT(uint16_t DeviceAddr)
{
/* Clear the global Error interrupt source */
mfxstm32l152_ClearGlobalIT(DeviceAddr, MFXSTM32L152_IRQ_ERROR);
}
/**
* @brief get Error interrupt status
* @param DeviceAddr: Device address on communication Bus.
* @retval Error interrupts status
*/
uint8_t mfxstm32l152_Error_GetITStatus(uint16_t DeviceAddr)
{
/* Return Error interrupt status */
return(mfxstm32l152_GlobalITStatus(DeviceAddr, MFXSTM32L152_IRQ_ERROR));
}
/**
* @brief disable Error interrupt
* @param DeviceAddr: Device address on communication Bus.
* @retval None.
*/
void mfxstm32l152_Error_DisableIT(uint16_t DeviceAddr)
{
/* Disable global Error interrupt source */
mfxstm32l152_DisableITSource(DeviceAddr, MFXSTM32L152_IRQ_ERROR);
}
/**
* @brief FOR DEBUG ONLY
*/
uint8_t mfxstm32l152_ReadReg(uint16_t DeviceAddr, uint8_t RegAddr)
{
/* Get the current register value */
return(MFX_IO_Read((uint8_t) DeviceAddr, RegAddr));
}
void mfxstm32l152_WriteReg(uint16_t DeviceAddr, uint8_t RegAddr, uint8_t Value)
{
/* set the current register value */
MFX_IO_Write((uint8_t) DeviceAddr, RegAddr, Value);
}
/* ------------------------------------------------------------------ */
/* ----------------------- Private functions ------------------------ */
/* ------------------------------------------------------------------ */
/**
* @brief Check if the device instance of the selected address is already registered
* and return its index
* @param DeviceAddr: Device address on communication Bus.
* @retval Index of the device instance if registered, 0xFF if not.
*/
static uint8_t mfxstm32l152_GetInstance(uint16_t DeviceAddr)
{
uint8_t idx = 0;
/* Check all the registered instances */
for(idx = 0; idx < MFXSTM32L152_MAX_INSTANCE ; idx ++)
{
if(mfxstm32l152[idx] == DeviceAddr)
{
return idx;
}
}
return 0xFF;
}
/**
* @brief Release registered device instance
* @param DeviceAddr: Device address on communication Bus.
* @retval Index of released device instance, 0xFF if not.
*/
static uint8_t mfxstm32l152_ReleaseInstance(uint16_t DeviceAddr)
{
uint8_t idx = 0;
/* Check for all the registered instances */
for(idx = 0; idx < MFXSTM32L152_MAX_INSTANCE ; idx ++)
{
if(mfxstm32l152[idx] == DeviceAddr)
{
mfxstm32l152[idx] = 0;
return idx;
}
}
return 0xFF;
}
/**
* @brief Internal routine
* @param DeviceAddr: Device address on communication Bus.
* @param RegisterAddr: Register Address
* @param PinPosition: Pin [0:23]
* @param PinValue: 0/1
* @retval None
*/
void mfxstm32l152_reg24_setPinValue(uint16_t DeviceAddr, uint8_t RegisterAddr, uint32_t PinPosition, uint8_t PinValue )
{
uint8_t tmp = 0;
uint8_t pin_0_7, pin_8_15, pin_16_23;
pin_0_7 = PinPosition & 0x0000ff;
pin_8_15 = PinPosition >> 8;
pin_8_15 = pin_8_15 & 0x00ff;
pin_16_23 = PinPosition >> 16;
if (pin_0_7)
{
/* Get the current register value */
tmp = MFX_IO_Read(DeviceAddr, RegisterAddr);
/* Set the selected pin direction */
if (PinValue != 0)
{
tmp |= (uint8_t)pin_0_7;
}
else
{
tmp &= ~(uint8_t)pin_0_7;
}
/* Set the new register value */
MFX_IO_Write(DeviceAddr, RegisterAddr, tmp);
}
if (pin_8_15)
{
/* Get the current register value */
tmp = MFX_IO_Read(DeviceAddr, RegisterAddr+1);
/* Set the selected pin direction */
if (PinValue != 0)
{
tmp |= (uint8_t)pin_8_15;
}
else
{
tmp &= ~(uint8_t)pin_8_15;
}
/* Set the new register value */
MFX_IO_Write(DeviceAddr, RegisterAddr+1, tmp);
}
if (pin_16_23)
{
/* Get the current register value */
tmp = MFX_IO_Read(DeviceAddr, RegisterAddr+2);
/* Set the selected pin direction */
if (PinValue != 0)
{
tmp |= (uint8_t)pin_16_23;
}
else
{
tmp &= ~(uint8_t)pin_16_23;
}
/* Set the new register value */
MFX_IO_Write(DeviceAddr, RegisterAddr+2, tmp);
}
}
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/**
* @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/