302 lines
13 KiB
C
302 lines
13 KiB
C
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/******************************************************************************************************************************************
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* 文件名称: SWM341_lcd.c
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* 功能说明: SWM341单片机的LCD功能驱动库
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* 技术支持: http://www.synwit.com.cn/e/tool/gbook/?bid=1
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* 注意事项:
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* 版本日期: V1.1.0 2017年10月25日
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* 升级记录:
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*
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*
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*******************************************************************************************************************************************
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* @attention
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*
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION
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* REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, SYNWIT SHALL NOT BE HELD LIABLE
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* FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT
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* OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONN-
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* -ECTION WITH THEIR PRODUCTS.
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*
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* COPYRIGHT 2012 Synwit Technology
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*******************************************************************************************************************************************/
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#include "SWM341.h"
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#include "SWM341_lcd.h"
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#include <string.h>
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/******************************************************************************************************************************************
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* 函数名称: LCD_Init()
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* 功能说明: LCD初始化
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* LCD_InitStructure * initStruct 包含LCD相关设定值的结构体
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_Init(LCD_TypeDef * LCDx, LCD_InitStructure * initStruct)
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{
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switch((uint32_t)LCDx)
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{
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case ((uint32_t)LCD):
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SYS->CLKEN0 |= (0x01 << SYS_CLKEN0_LCD_Pos);
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break;
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}
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LCDx->CR = ((initStruct->ClkDiv - 2) << LCD_CR_CLKDIV_Pos) |
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(initStruct->SampleEdge << LCD_CR_CLKINV_Pos) |
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(1 << LCD_CR_CLKALW_Pos) |
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((initStruct->Format & 1) << LCD_CR_FORMAT_Pos) |
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((initStruct->Format >> 1) << LCD_CR_SEREN_Pos) |
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(1 << LCD_CR_BURSTEN_Pos) |
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(0 << LCD_CR_BURSTLEN_Pos) |
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((1-initStruct->IntEOTEn) << LCD_CR_AUTORESTA_Pos);
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LCDx->CRH = ((initStruct->HsyncWidth - 1) << LCD_CRH_HSW_Pos) |
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((initStruct->Hbp - 1) << LCD_CRH_HBP_Pos) |
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((initStruct->HnPixel - 1) << LCD_CRH_PIX_Pos) |
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((initStruct->Hfp - 1) << LCD_CRH_HFP_Pos);
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LCDx->CRV = ((initStruct->VsyncWidth - 1) << LCD_CRV_VSW_Pos) |
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((initStruct->Vbp - 1) << LCD_CRV_VBP_Pos) |
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((initStruct->VnPixel - 1) << LCD_CRV_PIX_Pos) |
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((initStruct->Vfp - 1) << LCD_CRV_VFP_Pos);
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LCDx->BGC = initStruct->Background;
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LCDx->L[0].LCR = (1 << LCD_LCR_EN_Pos) |
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(0 << LCD_LCR_CKEN_Pos) |
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(0xFF << LCD_LCR_ALPHA_Pos);
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LCDx->L[0].WHP = (0 << LCD_WHP_STA_Pos) |
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((initStruct->HnPixel - 1) << LCD_WHP_STP_Pos);
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LCDx->L[0].WVP = (0 << LCD_WVP_STA_Pos) |
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((initStruct->VnPixel - 1) << LCD_WVP_STP_Pos);
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LCDx->L[0].ADDR = initStruct->DataSource;
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LCDx->L[0].LLEN = (initStruct->HnPixel - 1);
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LCDx->IF = 1; //清除标志
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LCDx->IE = initStruct->IntEOTEn;
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switch((uint32_t)LCDx)
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{
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case ((uint32_t)LCD):
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if(initStruct->IntEOTEn) NVIC_EnableIRQ(LCD_IRQn);
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break;
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}
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_LayerInit()
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* 功能说明: LCD层初始化
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* uint32_t layerx 要初始化的LCD层，取值LCD_LAYER_1、LCD_LAYER_2
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* LCD_LayerInitStructure * initStruct 包含LCD层相关设定值的结构体
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_LayerInit(LCD_TypeDef * LCDx, uint32_t layerx, LCD_LayerInitStructure * initStruct)
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{
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LCDx->L[layerx].LCR = (1 << LCD_LCR_EN_Pos) |
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(0 << LCD_LCR_CKEN_Pos) |
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(initStruct->Alpha << LCD_LCR_ALPHA_Pos);
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LCDx->L[layerx].WHP = (initStruct->HStart << LCD_WHP_STA_Pos) |
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(initStruct->HStop << LCD_WHP_STP_Pos);
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LCDx->L[layerx].WVP = (initStruct->VStart << LCD_WVP_STA_Pos) |
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(initStruct->VStop << LCD_WVP_STP_Pos);
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LCDx->L[layerx].ADDR = initStruct->DataSource;
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LCDx->L[layerx].LLEN = (initStruct->HStop - initStruct->HStart);
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LCD->CR |= (1 << LCD_CR_VBPRELOAD_Pos);
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_SetLayerPos()
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* 功能说明: LCD层位置设定
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* uint32_t layerx 要设置的LCD层，取值LCD_LAYER_1、LCD_LAYER_2
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* uint16_t hstart, uint16_t hstop, uint16_t vstart, uint16_t vstop，详细说明见 LCD_LayerInitStructure
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_SetLayerPos(LCD_TypeDef * LCDx, uint32_t layerx, uint16_t hstart, uint16_t hstop, uint16_t vstart, uint16_t vstop)
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{
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LCDx->L[layerx].WHP = (hstart << LCD_WHP_STA_Pos) |
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(hstop << LCD_WHP_STP_Pos);
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LCDx->L[layerx].WVP = (vstart << LCD_WVP_STA_Pos) |
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(vstop << LCD_WVP_STP_Pos);
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LCD->CR |= (1 << LCD_CR_VBPRELOAD_Pos);
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_Start()
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* 功能说明: 启动一次数据传输
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_Start(LCD_TypeDef * LCDx)
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{
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LCDx->START |= (1 << LCD_START_GO_Pos);
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_IsBusy()
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* 功能说明: 是否正在进行数据传输
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: uint32_t 1 正在传输数据 0 数据传输已完成
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t LCD_IsBusy(LCD_TypeDef * LCDx)
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{
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return (LCDx->START & LCD_START_GO_Msk) ? 1 : 0;
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_INTEn()
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* 功能说明: LCD中断使能，完成指定长度的数据传输时触发中断
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_INTEn(LCD_TypeDef * LCDx)
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{
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LCDx->IE = 1;
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_INTDis()
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* 功能说明: LCD中断禁止，完成指定长度的数据传输时不触发中断
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_INTDis(LCD_TypeDef * LCDx)
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{
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LCDx->IE = 0;
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_INTClr()
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* 功能说明: LCD中断标志清除
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void LCD_INTClr(LCD_TypeDef * LCDx)
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{
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LCDx->IF = 1;
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}
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/******************************************************************************************************************************************
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* 函数名称: LCD_INTStat()
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* 功能说明: LCD中断状态查询
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: uint32_t 0 未完成指定长度的数据传输 非0 完成指定长度的数据传输
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t LCD_INTStat(LCD_TypeDef * LCDx)
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{
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return (LCDx->IF & 1);
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}
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/******************************************************************************************************************************************
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* 函数名称: MPULCD_Init()
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* 功能说明: MPU LCD初始化
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* MPULCD_InitStructure * initStruct 包含MPU LCD相关设定值的结构体
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void MPULCD_Init(LCD_TypeDef * LCDx, MPULCD_InitStructure * initStruct)
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{
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switch((uint32_t)LCDx)
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{
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case ((uint32_t)LCD):
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SYS->CLKEN0 |= (0x01 << SYS_CLKEN0_LCD_Pos);
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__NOP();__NOP();__NOP();
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break;
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}
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LCDx->CR = (1 << LCD_CR_MPUEN_Pos) |
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(LCD_FMT_RGB565 << LCD_CR_FORMAT_Pos); //MPU模式只支持RGB565
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LCDx->L[0].LCR |= (1 << LCD_LCR_EN_Pos); //MPU模式下需要使能Layer1
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LCDx->MPUCR = ((initStruct->RDHoldTime - 1) << LCD_MPUCR_RDHOLD_Pos) |
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((initStruct->WRHoldTime - 1) << LCD_MPUCR_WRHOLD_Pos) |
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((initStruct->CSFall_WRFall - 1) << LCD_MPUCR_CS0WR0_Pos) |
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((initStruct->WRRise_CSRise - 1) << LCD_MPUCR_WR1CS1_Pos) |
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((initStruct->RDCSRise_Fall - 1) << LCD_MPUCR_RCS1_0_Pos) |
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((initStruct->WRCSRise_Fall - 1) << LCD_MPUCR_WCS1_0_Pos);
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}
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void LCD_WR_REG(LCD_TypeDef * LCDx, uint16_t reg)
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{
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LCDx->MPUIR = reg;
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while(LCD_IsBusy(LCDx)) __NOP();
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}
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void LCD_WR_DATA(LCD_TypeDef * LCDx, uint16_t val)
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{
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LCDx->MPUDR = val;
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while(LCD_IsBusy(LCDx)) __NOP();
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}
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void LCD_WriteReg(LCD_TypeDef * LCDx, uint16_t reg, uint16_t val)
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{
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LCDx->MPUIR = reg;
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while(LCD_IsBusy(LCDx)) __NOP();
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LCDx->MPUDR = val;
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while(LCD_IsBusy(LCDx)) __NOP();
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}
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uint16_t LCD_ReadReg(LCD_TypeDef * LCDx, uint16_t reg)
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{
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LCDx->MPUIR = reg;
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while(LCD_IsBusy(LCDx)) __NOP();
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return LCDx->MPUDR;
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}
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/******************************************************************************************************************************************
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* 函数名称: MPULCD_DMAStart()
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* 功能说明: MPU LCD DMA搬运显示数据
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* uint32_t * buff 要搬运的显示数据
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* uint16_t hpix 横向像素数，即每行像素数，必须是偶数
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* uint16_t vpix 纵向像素数，即行数
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* 输 出: 无
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* 注意事项: 无
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******************************************************************************************************************************************/
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void MPULCD_DMAStart(LCD_TypeDef * LCDx, uint32_t * buff, uint16_t hpix, uint16_t vpix)
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{
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LCDx->MPUAR = (uint32_t)buff;
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LCDx->MPULEN = ((vpix - 1) << LCD_MPULEN_VPIX_Pos) |
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((hpix - 1) << LCD_MPULEN_HPIX_Pos);
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LCDx->START |= (1 << LCD_START_GO_Pos);
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}
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/******************************************************************************************************************************************
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* 函数名称: MPULCD_DMABusy()
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* 功能说明: MPU LCD DMA搬运显示数据忙查询
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* 输 入: LCD_TypeDef * LCDx 指定要被设置的LCD，有效值包括LCD
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* 输 出: uint32_t 1 搬运中 0 搬运完成
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* 注意事项: 无
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******************************************************************************************************************************************/
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uint32_t MPULCD_DMABusy(LCD_TypeDef * LCDx)
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{
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return (LCDx->START & LCD_START_GO_Msk) ? 1 : 0;
|
|||
|
|
}
|