460 lines
13 KiB
C
460 lines
13 KiB
C
/*
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* Copyright : (C) 2022 Phytium Information Technology, Inc.
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* All Rights Reserved.
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*
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* This program is OPEN SOURCE software: you can redistribute it and/or modify it
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* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
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* either version 1.0 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the Phytium Public License for more details.
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*
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*
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* FilePath: fgpio.c
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* Date: 2022-02-10 14:53:42
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* LastEditTime: 2022-02-18 08:25:29
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* Description: This files is for GPIO user API implmentation
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*
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* Modify History:
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* Ver Who Date Changes
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* ----- ------ -------- --------------------------------------
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* 1.0 zhugengyu 2022-3-1 init commit
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*/
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/***************************** Include Files *********************************/
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#include "fdebug.h"
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#include "fparameters.h"
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#include "fgpio_hw.h"
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#include "fgpio.h"
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/************************** Constant Definitions *****************************/
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/**************************** Type Definitions *******************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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#define FGPIO_DEBUG_TAG "FGPIO"
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#define FGPIO_ERROR(format, ...) FT_DEBUG_PRINT_E(FGPIO_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FGPIO_WARN(format, ...) FT_DEBUG_PRINT_W(FGPIO_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FGPIO_INFO(format, ...) FT_DEBUG_PRINT_I(FGPIO_DEBUG_TAG, format, ##__VA_ARGS__)
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#define FGPIO_DEBUG(format, ...) FT_DEBUG_PRINT_D(FGPIO_DEBUG_TAG, format, ##__VA_ARGS__)
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/************************** Function Prototypes ******************************/
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/************************** Variable Definitions *****************************/
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/*****************************************************************************/
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/**
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* @name: FGpioCfgInitialize
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* @msg: 初始化GPIO控制器实例
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* @return {FError} FGPIO_SUCCESS 表示初始化成功
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* @param {FGpio} *instance, GPIO控制器实例
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* @param {FGpioConfig} *config, GPIO控制器配置
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*/
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FError FGpioCfgInitialize(FGpio *const instance, const FGpioConfig *const config)
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{
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FASSERT(instance && config);
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if (0 == config->base_addr)
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{
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FGPIO_ERROR("invalid base address !!!");
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return FGPIO_ERR_INVALID_PARA;
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}
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if (config != &instance->config)
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{
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instance->config = *config;
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}
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instance->is_ready = FT_COMPONENT_IS_READY;
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return FGPIO_SUCCESS;
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}
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/**
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* @name: FGpioDeInitialize
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* @msg: 去初始化GPIO控制器实例
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* @return {*}
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* @param {FGpio} *instance, GPIO控制器实例
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*/
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void FGpioDeInitialize(FGpio *const instance)
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{
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FASSERT(instance);
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u32 port_id;
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u32 pin_id;
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FGpioPin *pin = NULL;
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for (port_id = FGPIO_PORT_A; port_id < FGPIO_PORT_NUM; port_id++)
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{
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for (pin_id = FGPIO_PIN_0; pin_id < FGPIO_PIN_NUM; pin_id++)
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{
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pin = instance->pins[port_id][pin_id];
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if (NULL != pin)
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{
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FGpioPinDeInitialize(pin);
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}
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}
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}
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instance->is_ready = 0;
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return;
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}
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/**
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* @name: FGpioPinInitialize
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* @msg: 初始化GPIO引脚实例
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* @return {FError} FGPIO_SUCCESS 表示初始化成功
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* @param {FGpio} *instance, GPIO控制器实例
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* @param {FGpioPin} *pin_instance, GPIO引脚实例
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* @param {FGpioPinId} index, GPIO引脚索引
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*/
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FError FGpioPinInitialize(FGpio *const instance, FGpioPin *const pin_instance,
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const FGpioPinId index)
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{
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FASSERT(instance && pin_instance);
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FASSERT_MSG(index.port < FGPIO_PORT_NUM, "invalid gpio port %d", index);
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FASSERT_MSG(index.pin < FGPIO_PIN_NUM, "invalid gpio pin %d", index);
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if (FT_COMPONENT_IS_READY != instance->is_ready)
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{
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FGPIO_ERROR("gpio instance not yet init !!!");
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return FGPIO_ERR_NOT_INIT;
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}
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if (FT_COMPONENT_IS_READY == pin_instance->is_ready)
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{
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FGPIO_ERROR("gpio pin already inited !!!");
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return FGPIO_ERR_ALREADY_INIT;
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}
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pin_instance->index = index;
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instance->pins[index.port][index.pin] = pin_instance;
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pin_instance->instance = instance;
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pin_instance->irq_cb = NULL;
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pin_instance->irq_cb_params = NULL;
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pin_instance->irq_one_time = FALSE;
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pin_instance->is_ready = FT_COMPONENT_IS_READY;
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return FGPIO_SUCCESS;
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}
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/**
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* @name: FGpioPinDeInitialize
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* @msg: 去初始化GPIO引脚实例
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* @return {NONE}
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* @param {FGpioPin} *pin, GPIO引脚实例
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*/
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void FGpioPinDeInitialize(FGpioPin *const pin)
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{
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FASSERT(pin);
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FGpio *const instance = pin->instance;
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if ((NULL == instance) || (FT_COMPONENT_IS_READY != instance->is_ready) ||
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(FT_COMPONENT_IS_READY != pin->is_ready))
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{
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FGPIO_ERROR("gpio instance not yet init !!!");
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return;
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}
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if (FGPIO_DIR_INPUT == FGpioGetDirection(pin))
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FGpioSetInterruptMask(pin, FALSE); /* 关闭引脚中断 */
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FGpioPinId index = pin->index;
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FASSERT_MSG(instance->pins[index.port][index.pin] == pin, "invalid pin instance");
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instance->pins[index.port][index.pin] = NULL;
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pin->instance = NULL;
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pin->is_ready = 0U;
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return;
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}
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/**
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* @name: FGpioGetPinIrqSourceType
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* @msg: 获取引脚中断的上报方式
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* @return {FGpioIrqSourceType} 引脚中断的上报方式
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* @param {FGpioPin} *pin, GPIO引脚实例
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*/
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FGpioIrqSourceType FGpioGetPinIrqSourceType(FGpioPinId pin_id)
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{
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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if (FGPIO_PORT_B == pin_id.port)
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{
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return FGPIO_IRQ_NOT_SUPPORT;
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}
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#endif
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if (FGPIO_PORT_A == pin_id.port)
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{
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#if defined(FGPIO_VERSION_2) /* E2000 GPIO 0 ~ 5 */
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if (pin_id.ctrl <= FGPIO_WITH_PIN_IRQ) /* 0 ~ 2 中断单独上报 */
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{
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return FGPIO_IRQ_BY_PIN;
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}
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#endif
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return FGPIO_IRQ_BY_CONTROLLER;
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}
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return FGPIO_IRQ_NOT_SUPPORT;
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}
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/**
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* @name: FGpioReadRegDir
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* @msg: 从寄存器读取GPIO组的输入输出方向
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* @return {u32} GPIO组的输入输出方向, bit[8:0]有效
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* @param {uintptr} base_addr, GPIO控制器基地址
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* @param {FGpioPortIndex} port, GPIO组, A/B
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*/
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static u32 FGpioReadRegDir(uintptr base_addr, const FGpioPortIndex port)
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{
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u32 reg_val = 0;
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if (FGPIO_PORT_A == port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_SWPORTA_DDR_OFFSET);
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}
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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else if (FGPIO_PORT_B == port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_SWPORTB_DDR_OFFSET);
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}
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#endif
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else
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{
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FASSERT(0);
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}
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return reg_val;
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}
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/**
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* @name: FGpioWriteRegDir
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* @msg: 向寄存器写入GPIO组的输入输出方向
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* @return {*}
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* @param {uintptr} base_addr, GPIO控制器基地址
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* @param {FGpioPortIndex} port, GPIO组, A/B
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* @param {u32} reg_val, GPIO组的输入输出方向, bit[8:0]有效
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*/
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static void FGpioWriteRegDir(uintptr base_addr, const FGpioPortIndex port, const u32 reg_val)
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{
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if (FGPIO_PORT_A == port)
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{
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FGpioWriteReg32(base_addr, FGPIO_SWPORTA_DDR_OFFSET, reg_val);
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}
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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else if (FGPIO_PORT_B == port)
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{
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FGpioWriteReg32(base_addr, FGPIO_SWPORTB_DDR_OFFSET, reg_val);
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}
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#endif
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else
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{
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FASSERT(0);
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}
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return;
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}
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/**
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* @name: FGpioSetDirection
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* @msg: 设置GPIO引脚的输入输出方向
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* @return {*}
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* @param {FGpioPin} *instance, GPIO控制器实例
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* @param {FGpioDirection} dir, 待设置的GPIO的方向
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* @note 初始化 GPIO 实例后使用此函数
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*/
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void FGpioSetDirection(FGpioPin *const pin, FGpioDirection dir)
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{
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FASSERT(pin);
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FGpio *const instance = pin->instance;
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FASSERT(instance);
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FASSERT_MSG(instance->is_ready == FT_COMPONENT_IS_READY, "gpio instance not yet init !!!");
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u32 reg_val;
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FGpioPinId index = pin->index;
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uintptr base_addr = instance->config.base_addr;
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reg_val = FGpioReadRegDir(base_addr, index.port);
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if (FGPIO_DIR_INPUT == dir)
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{
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reg_val &= ~BIT(index.pin); /* 0-Input */
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}
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else if (FGPIO_DIR_OUTPUT == dir)
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{
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reg_val |= BIT(index.pin); /* 1-Output */
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}
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else
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{
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FASSERT(0);
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}
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FGpioWriteRegDir(base_addr, index.port, reg_val);
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return;
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}
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/**
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* @name: FGpioGetDirection
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* @msg: 获取GPIO引脚的输入输出方向
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* @return {FGpioDirection} GPIO引脚方向
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* @param {FGpioPin} *pin, GPIO引脚实例
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* @note 初始化 GPIO 实例后使用此函数
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*/
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FGpioDirection FGpioGetDirection(FGpioPin *const pin)
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{
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FASSERT(pin);
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FGpio *const instance = pin->instance;
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FASSERT(instance);
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FASSERT(instance->is_ready == FT_COMPONENT_IS_READY);
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FGpioPinId index = pin->index;
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uintptr base_addr = instance->config.base_addr;
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u32 reg_val = FGpioReadRegDir(base_addr, index.port);
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return (BIT(index.pin) & reg_val) ? FGPIO_DIR_OUTPUT : FGPIO_DIR_INPUT;
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}
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/**
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* @name: FGpioReadRegVal
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* @msg: 获取GPIO组的输出寄存器值
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* @return {u32} 输出寄存器值 bit[8:0]有效
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* @param {uintptr} base_addr, GPIO控制器基地址
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* @param {FGpioPortIndex} port, GPIO组
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*/
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static u32 FGpioReadRegVal(uintptr base_addr, const FGpioPortIndex port)
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{
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u32 reg_val = 0;
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if (FGPIO_PORT_A == port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_SWPORTA_DR_OFFSET);
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}
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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else if (FGPIO_PORT_B == port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_SWPORTB_DR_OFFSET);
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}
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#endif
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else
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{
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FASSERT(0);
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}
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return reg_val;
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}
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/**
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* @name: FGpioWriteRegVal
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* @msg: 设置GPIO组的输出寄存器值
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* @return {*}
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* @param {uintptr} base_addr, GPIO控制器基地址
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* @param {FGpioPortIndex} port, GPIO组
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* @param {u32} reg_val, 输出寄存器值 bit[8:0]有效
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*/
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void FGpioWriteRegVal(uintptr base_addr, const FGpioPortIndex port, const u32 reg_val)
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{
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if (FGPIO_PORT_A == port)
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{
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FGpioWriteReg32(base_addr, FGPIO_SWPORTA_DR_OFFSET, reg_val);
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}
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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else if (FGPIO_PORT_B == port)
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{
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FGpioWriteReg32(base_addr, FGPIO_SWPORTB_DR_OFFSET, reg_val);
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}
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#endif
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else
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{
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FASSERT(0);
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}
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return;
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}
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/**
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* @name: FGpioSetOutputValue
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* @msg: 设置GPIO引脚的输出值
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* @return {FError} FGPIO_SUCCESS 表示设置成功
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* @param {FGpioPin} *pin, GPIO引脚实例
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* @param {FGpioPinVal} output, GPIO引脚的输出值
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* @note 初始化 GPIO 实例后使用此函数，先设置 GPIO 引脚为输出后调用此函数
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*/
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FError FGpioSetOutputValue(FGpioPin *const pin, const FGpioPinVal output)
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{
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FASSERT(pin);
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FGpio *const instance = pin->instance;
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FASSERT(instance);
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FASSERT_MSG(instance->is_ready == FT_COMPONENT_IS_READY, "gpio instance not yet init !!!");
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FGpioPinId index = pin->index;
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u32 base_addr = instance->config.base_addr;
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u32 reg_val;
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if (FGPIO_DIR_OUTPUT != FGpioGetDirection(pin))
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{
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FGPIO_ERROR("need to set GPIO direction as OUTPUT first !!!");
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return FGPIO_ERR_INVALID_STATE;
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}
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FGPIO_INFO("pin-%d at port %d", index.pin, index.port);
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reg_val = FGpioReadRegVal(base_addr, index.port);
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if (FGPIO_PIN_LOW == output)
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{
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reg_val &= ~BIT(index.pin);
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}
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else if (FGPIO_PIN_HIGH == output)
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{
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reg_val |= BIT(index.pin);
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}
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else
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{
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FASSERT(0);
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}
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FGPIO_INFO("output val 0x%x", reg_val);
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FGpioWriteRegVal(base_addr, index.port, reg_val);
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FGPIO_INFO("output val 0x%x", FGpioReadRegVal(base_addr, index.port));
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return FGPIO_SUCCESS;
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}
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/**
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* @name: FGpioGetInputValue
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* @msg: 获取GPIO引脚的输入值
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* @return {FGpioPinVal} 获取的输入值，高电平/低电平
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* @param {FGpioPin} *instance, GPIO引脚实例
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* @note 初始化 GPIO 实例后使用此函数，先设置 GPIO 引脚为输入后调用此函数
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*/
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FGpioPinVal FGpioGetInputValue(FGpioPin *const pin)
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{
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FASSERT(pin);
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FGpio *const instance = pin->instance;
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FASSERT(instance);
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FASSERT(instance->is_ready == FT_COMPONENT_IS_READY);
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FGpioPinId index = pin->index;
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uintptr base_addr = instance->config.base_addr;
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u32 reg_val;
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if (FGPIO_DIR_INPUT != FGpioGetDirection(pin))
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{
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FGPIO_ERROR("need to set GPIO direction as INPUT first !!!");
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return FGPIO_PIN_LOW;
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}
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if (FGPIO_PORT_A == index.port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_EXT_PORTA_OFFSET);
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}
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#if defined(FGPIO_VERSION_1) /* FT2000-4, D2000 */
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else if (FGPIO_PORT_B == index.port)
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{
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reg_val = FGpioReadReg32(base_addr, FGPIO_EXT_PORTB_OFFSET);
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}
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#endif
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else
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{
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FASSERT(0);
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}
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FGPIO_INFO("input val: 0x%x", reg_val);
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return (BIT(index.pin) & reg_val) ? FGPIO_PIN_HIGH : FGPIO_PIN_LOW;
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} |