dc32-retro-tech-addon/firmware/ch32v003_bootloader/periph/src/ch32v00x_gpio.c

508 lines
16 KiB
C

/********************************** (C) COPYRIGHT *******************************
* File Name : ch32v00x_gpio.c
* Author : WCH
* Version : V1.0.0
* Date : 2022/08/08
* Description : This file provides all the GPIO firmware functions.
*********************************************************************************
* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
* Attention: This software (modified or not) and binary are used for
* microcontroller manufactured by Nanjing Qinheng Microelectronics.
*******************************************************************************/
#include <ch32v00x_gpio.h>
#include <ch32v00x_rcc.h>
/* MASK */
#define LSB_MASK ((uint16_t)0xFFFF)
#define DBGAFR_POSITION_MASK ((uint32_t)0x000F0000)
#define DBGAFR_SDI_MASK ((uint32_t)0xF8FFFFFF)
#define DBGAFR_LOCATION_MASK ((uint32_t)0x00200000)
#define DBGAFR_NUMBITS_MASK ((uint32_t)0x00100000)
/*********************************************************************
* @fn GPIO_DeInit
*
* @brief Deinitializes the GPIOx peripheral registers to their default
* reset values.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
*
* @return none
*/
void GPIO_DeInit(GPIO_TypeDef *GPIOx)
{
if(GPIOx == GPIOA)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOA, DISABLE);
}
else if(GPIOx == GPIOC)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOC, DISABLE);
}
else if(GPIOx == GPIOD)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_GPIOD, DISABLE);
}
}
/*********************************************************************
* @fn GPIO_AFIODeInit
*
* @brief Deinitializes the Alternate Functions (remap, event control
* and EXTI configuration) registers to their default reset values.
*
* @return none
*/
void GPIO_AFIODeInit(void)
{
RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphResetCmd(RCC_APB2Periph_AFIO, DISABLE);
}
/*********************************************************************
* @fn GPIO_Init
*
* @brief GPIOx - where x can be (A..G) to select the GPIO peripheral.
*
* @param GPIO_InitStruct - pointer to a GPIO_InitTypeDef structure that
* contains the configuration information for the specified GPIO peripheral.
*
* @return none
*/
void GPIO_Init(GPIO_TypeDef *GPIOx, GPIO_InitTypeDef *GPIO_InitStruct)
{
uint32_t currentmode = 0x00, currentpin = 0x00, pinpos = 0x00, pos = 0x00;
uint32_t tmpreg = 0x00, pinmask = 0x00;
currentmode = ((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x0F);
if((((uint32_t)GPIO_InitStruct->GPIO_Mode) & ((uint32_t)0x10)) != 0x00)
{
currentmode |= (uint32_t)GPIO_InitStruct->GPIO_Speed;
}
if(((uint32_t)GPIO_InitStruct->GPIO_Pin & ((uint32_t)0x00FF)) != 0x00)
{
tmpreg = GPIOx->CFGLR;
for(pinpos = 0x00; pinpos < 0x08; pinpos++)
{
pos = ((uint32_t)0x01) << pinpos;
currentpin = (GPIO_InitStruct->GPIO_Pin) & pos;
if(currentpin == pos)
{
pos = pinpos << 2;
pinmask = ((uint32_t)0x0F) << pos;
tmpreg &= ~pinmask;
tmpreg |= (currentmode << pos);
if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
{
GPIOx->BCR = (((uint32_t)0x01) << pinpos);
}
else
{
if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
{
GPIOx->BSHR = (((uint32_t)0x01) << pinpos);
}
}
}
}
GPIOx->CFGLR = tmpreg;
}
if(GPIO_InitStruct->GPIO_Pin > 0x00FF)
{
tmpreg = GPIOx->CFGHR;
for(pinpos = 0x00; pinpos < 0x08; pinpos++)
{
pos = (((uint32_t)0x01) << (pinpos + 0x08));
currentpin = ((GPIO_InitStruct->GPIO_Pin) & pos);
if(currentpin == pos)
{
pos = pinpos << 2;
pinmask = ((uint32_t)0x0F) << pos;
tmpreg &= ~pinmask;
tmpreg |= (currentmode << pos);
if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPD)
{
GPIOx->BCR = (((uint32_t)0x01) << (pinpos + 0x08));
}
if(GPIO_InitStruct->GPIO_Mode == GPIO_Mode_IPU)
{
GPIOx->BSHR = (((uint32_t)0x01) << (pinpos + 0x08));
}
}
}
GPIOx->CFGHR = tmpreg;
}
}
/*********************************************************************
* @fn GPIO_StructInit
*
* @brief Fills each GPIO_InitStruct member with its default
*
* @param GPIO_InitStruct - pointer to a GPIO_InitTypeDef structure
* which will be initialized.
*
* @return none
*/
void GPIO_StructInit(GPIO_InitTypeDef *GPIO_InitStruct)
{
GPIO_InitStruct->GPIO_Pin = GPIO_Pin_All;
GPIO_InitStruct->GPIO_Speed = GPIO_Speed_2MHz;
GPIO_InitStruct->GPIO_Mode = GPIO_Mode_IN_FLOATING;
}
/*********************************************************************
* @fn GPIO_ReadInputDataBit
*
* @brief GPIOx - where x can be (A..G) to select the GPIO peripheral.
*
* @param GPIO_Pin - specifies the port bit to read.
* This parameter can be GPIO_Pin_x where x can be (0..15).
*
* @return The input port pin value.
*/
uint8_t GPIO_ReadInputDataBit(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
if((GPIOx->INDR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/*********************************************************************
* @fn GPIO_ReadInputData
*
* @brief Reads the specified GPIO input data port.
*
* @param GPIOx: where x can be (A..G) to select the GPIO peripheral.
*
* @return The input port pin value.
*/
uint16_t GPIO_ReadInputData(GPIO_TypeDef *GPIOx)
{
return ((uint16_t)GPIOx->INDR);
}
/*********************************************************************
* @fn GPIO_ReadOutputDataBit
*
* @brief Reads the specified output data port bit.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
* GPIO_Pin - specifies the port bit to read.
* This parameter can be GPIO_Pin_x where x can be (0..15).
*
* @return none
*/
uint8_t GPIO_ReadOutputDataBit(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
{
uint8_t bitstatus = 0x00;
if((GPIOx->OUTDR & GPIO_Pin) != (uint32_t)Bit_RESET)
{
bitstatus = (uint8_t)Bit_SET;
}
else
{
bitstatus = (uint8_t)Bit_RESET;
}
return bitstatus;
}
/*********************************************************************
* @fn GPIO_ReadOutputData
*
* @brief Reads the specified GPIO output data port.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
*
* @return GPIO output port pin value.
*/
uint16_t GPIO_ReadOutputData(GPIO_TypeDef *GPIOx)
{
return ((uint16_t)GPIOx->OUTDR);
}
/*********************************************************************
* @fn GPIO_SetBits
*
* @brief Sets the selected data port bits.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
* GPIO_Pin - specifies the port bits to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
*
* @return none
*/
void GPIO_SetBits(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
{
GPIOx->BSHR = GPIO_Pin;
}
/*********************************************************************
* @fn GPIO_ResetBits
*
* @brief Clears the selected data port bits.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
* GPIO_Pin - specifies the port bits to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
*
* @return none
*/
void GPIO_ResetBits(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
{
GPIOx->BCR = GPIO_Pin;
}
/*********************************************************************
* @fn GPIO_WriteBit
*
* @brief Sets or clears the selected data port bit.
*
* @param GPIO_Pin - specifies the port bit to be written.
* This parameter can be one of GPIO_Pin_x where x can be (0..15).
* BitVal - specifies the value to be written to the selected bit.
* Bit_RESET - to clear the port pin.
* Bit_SET - to set the port pin.
*
* @return none
*/
void GPIO_WriteBit(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin, BitAction BitVal)
{
if(BitVal != Bit_RESET)
{
GPIOx->BSHR = GPIO_Pin;
}
else
{
GPIOx->BCR = GPIO_Pin;
}
}
/*********************************************************************
* @fn GPIO_Write
*
* @brief Writes data to the specified GPIO data port.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
* PortVal - specifies the value to be written to the port output data register.
*
* @return none
*/
void GPIO_Write(GPIO_TypeDef *GPIOx, uint16_t PortVal)
{
GPIOx->OUTDR = PortVal;
}
/*********************************************************************
* @fn GPIO_PinLockConfig
*
* @brief Locks GPIO Pins configuration registers.
*
* @param GPIOx - where x can be (A..G) to select the GPIO peripheral.
* GPIO_Pin - specifies the port bit to be written.
* This parameter can be any combination of GPIO_Pin_x where x can be (0..15).
*
* @return none
*/
void GPIO_PinLockConfig(GPIO_TypeDef *GPIOx, uint16_t GPIO_Pin)
{
uint32_t tmp = 0x00010000;
tmp |= GPIO_Pin;
GPIOx->LCKR = tmp;
GPIOx->LCKR = GPIO_Pin;
GPIOx->LCKR = tmp;
tmp = GPIOx->LCKR;
tmp = GPIOx->LCKR;
}
/*********************************************************************
* @fn GPIO_PinRemapConfig
*
* @brief Changes the mapping of the specified pin.
*
* @param GPIO_Remap - selects the pin to remap.
* GPIO_Remap_SPI1 - SPI1 Alternate Function mapping
* GPIO_PartialRemap_I2C1 - I2C1 Partial Alternate Function mapping
* GPIO_FullRemap_I2C1 - I2C1 Full Alternate Function mapping
* GPIO_PartialRemap1_USART1 - USART1 Partial1 Alternate Function mapping
* GPIO_PartialRemap2_USART1 - USART1 Partial2 Alternate Function mapping
* GPIO_FullRemap_USART1 - USART1 Full Alternate Function mapping
* GPIO_PartialRemap1_TIM1 - TIM1 Partial1 Alternate Function mapping
* GPIO_PartialRemap2_TIM1 - TIM1 Partial2 Alternate Function mapping
* GPIO_FullRemap_TIM1 - TIM1 Full Alternate Function mapping
* GPIO_PartialRemap1_TIM2 - TIM2 Partial1 Alternate Function mapping
* GPIO_PartialRemap2_TIM2 - TIM2 Partial2 Alternate Function mapping
* GPIO_FullRemap_TIM2 - TIM2 Full Alternate Function mapping
* GPIO_Remap_PA1_2 - PA1_2 Alternate Function mapping
* GPIO_Remap_ADC1_ETRGINJ - ADC1 External Trigger Injected Conversion remapping
* GPIO_Remap_ADC1_ETRGREG - ADC1 External Trigger Regular Conversion remapping
* GPIO_Remap_LSI_CAL - LSI calibration Alternate Function mapping
* GPIO_Remap_SDI_Disable - SDI Disabled
* NewState - ENABLE or DISABLE.
*
* @return none
*/
void GPIO_PinRemapConfig(uint32_t GPIO_Remap, FunctionalState NewState)
{
uint32_t tmp = 0x00, tmp1 = 0x00, tmpreg = 0x00, tmpmask = 0x00;
tmpreg = AFIO->PCFR1;
tmpmask = (GPIO_Remap & DBGAFR_POSITION_MASK) >> 0x10;
tmp = GPIO_Remap & LSB_MASK;
if((GPIO_Remap & 0x10000000) == 0x10000000)
{
tmpreg &= ~((1<<1) | (1<<22));
tmpreg |= ~DBGAFR_SDI_MASK;
if(NewState != DISABLE)
{
tmpreg |= (GPIO_Remap & 0xEFFFFFFF);
}
}
else if((GPIO_Remap & 0x80000000) == 0x80000000)
{
tmpreg &= ~((1<<2) | (1<<21));
tmpreg |= ~DBGAFR_SDI_MASK;
if(NewState != DISABLE)
{
tmpreg |= (GPIO_Remap & 0x7FFFFFFF);
}
}
else if((GPIO_Remap & (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK)) == (DBGAFR_LOCATION_MASK | DBGAFR_NUMBITS_MASK))/* SDI */
{
tmpreg &= DBGAFR_SDI_MASK;
AFIO->PCFR1 &= DBGAFR_SDI_MASK;
if(NewState != DISABLE)
{
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
}
}
else if((GPIO_Remap & DBGAFR_NUMBITS_MASK) == DBGAFR_NUMBITS_MASK)/* [15:0] 2bit */
{
tmp1 = ((uint32_t)0x03) << tmpmask;
tmpreg &= ~tmp1;
tmpreg |= ~DBGAFR_SDI_MASK;
if(NewState != DISABLE)
{
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
}
}
else/* [31:0] 1bit */
{
tmpreg &= ~(tmp << ((GPIO_Remap >> 0x15) * 0x10));
tmpreg |= ~DBGAFR_SDI_MASK;
if(NewState != DISABLE)
{
tmpreg |= (tmp << ((GPIO_Remap >> 0x15) * 0x10));
}
}
AFIO->PCFR1 = tmpreg;
}
/*********************************************************************
* @fn GPIO_EXTILineConfig
*
* @brief Selects the GPIO pin used as EXTI Line.
*
* @param GPIO_PortSource - selects the GPIO port to be used as source for EXTI lines.
* This parameter can be GPIO_PortSourceGPIOx where x can be (A..G).
* GPIO_PinSource - specifies the EXTI line to be configured.
* This parameter can be GPIO_PinSourcex where x can be (0..7).
*
* @return none
*/
void GPIO_EXTILineConfig(uint8_t GPIO_PortSource, uint8_t GPIO_PinSource)
{
uint32_t tmp = 0x00;
tmp = ((uint32_t)(3<<(GPIO_PinSource<<1)));
AFIO->EXTICR &= ~tmp;
AFIO->EXTICR |= ((uint32_t)(GPIO_PortSource<<(GPIO_PinSource<<1)));
}
/*********************************************************************
* @fn GPIO_IPD_Unused
*
* @brief Configure unused GPIO as input pull-up.
*
* @param none
*
* @return none
*/
void GPIO_IPD_Unused(void)
{
GPIO_InitTypeDef GPIO_InitStructure = {0};
uint32_t chip = 0;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOC, ENABLE);
chip = *( uint32_t * )0x1FFFF7C4 & (~0x000000F0);
switch(chip)
{
case 0x00320500: //CH32V003A4M6
{
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_2\
|GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);
break;
}
case 0x00330500: //CH32V003J4M6
{
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_2|GPIO_Pin_3\
|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOD, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_3\
|GPIO_Pin_5|GPIO_Pin_6\
|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOC, &GPIO_InitStructure);
break;
}
default:
{
break;
}
}
}