93 lines
3.7 KiB
C
93 lines
3.7 KiB
C
#ifndef _PAP_H_
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#define _PAP_H_
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#include "typedef.h"
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#include "asm/cpu.h"
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#include "os/os_api.h"
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#define PAP_DMA_MAX (0x7FFFFFFF - 4)
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#define PAPDEN 14 //PAP接口数据信号引脚(PGx)使能
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#define PAPREN 13 //PAP接口读信号引脚(PH4)使能
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#define PAPWEN 12 //PAP接口写信号引脚(PH3)使能
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#define PAP_PORT_EN() JL_IOMAP->CON0 |= ((1L<<PAPDEN)|(1L<<PAPREN)|(1L<<PAPWEN)) //使能PAP接口
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#define PAP_PORT_DIS() JL_IOMAP->CON0 &=~((1L<<PAPDEN)|(1L<<PAPREN)|(1L<<PAPWEN)) //使能PAP接口
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#define PAP_PORT_SEL()
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#define PAP_EXT_EN() JL_PAP->CON |= BIT(16) //使能PAP扩展模式
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#define PAP_EXT_DIS() JL_PAP->CON &= ~BIT(16) //禁止PAP扩展模式
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#define PAP_EXT_M2L() JL_PAP->CON |= BIT(17) //扩展模式顺序MSB到LSB
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#define PAP_EXT_L2M() JL_PAP->CON &= ~BIT(17) //扩展模式顺序LSB到MSB
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#define PAP_IE(x) JL_PAP->CON = (JL_PAP->CON & ~BIT(18)) | ((x & 0x1)<<18)
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#define PAP_USE_SEM 2
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~PAP参数配置~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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//datawidth:8bit/16bit模式配置
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#define PAP_PORT_8BITS 0
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#define PAP_PORT_16BITS 1
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//endian:数据大小端配置
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#define PAP_LE 0 //8bit时，数据在低8位IO输出；16bit时，低位数据在低端口IO输出
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#define PAP_BE 1 //8bit时，数据在高8位IO输出；16bit时，低位数据在高端口IO输出
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//cycle:1-2字节的循环发送和接收次数,3字节以上不进行多次发送
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#define PAP_CYCLE_ONE 0 //ReadWrite one times
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#define PAP_CYCLE_TWO 1 //ReadWrite two times
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//pre:读极性
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#define PAP_READ_LOW 0 //读信号：空闲1电平，有效0电平
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#define PAP_READ_HIGH 1 //读信号：空闲0电平，有效1电平
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//pwe:写极性
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#define PAP_WRITE_LOW 0 //写信号：空闲1电平，有效0电平
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#define PAP_WRITE_HIGH 1 //写信号：空闲0电平，有效1电平
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//port_sel:pap IO端口选择
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#define PAP_PORT_A 0 //PAP_D0-->PH0,PAP_D7-->PH8,PAP_D8-->PC1,PAP_D15-->PC8, PAP_WR-->PC9,PAP_RD-->PC10
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#define PAP_PORT_B 1 //PAP_D0-->PH0,PAP_D7-->PH8,PAP_D8-->PE2,PAP_D15-->PE9, PAP_WR-->PE0,PAP_RD-->PC0
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//timing_setup(ts) timing_hold(th) timing_width(tw):数据传输配置
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/*
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写时钟信号:
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__________ _________
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pwe=H: ____________| |_____________| |__________
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pwe=L: ____________ _____________ __________
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|__________| |_________|
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数据信号:
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________________________ ______
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data: _____| |_____________________|
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ts,tw,th: | | | |
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|<-ts->|<---tw--->|<-th->|
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ts:0-3,ts个lsb系统时钟宽度
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tw:0-15,0-->16个lsb系统时钟宽度，1-15：tw个lsb系统时钟宽度
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th:0-3,th个lsb系统时钟宽度
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*/
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/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/
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struct pap_info {
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u8 timing_setup: 2; //ts:数据建立时间(2bits)
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u8 timing_hold: 2; //th:数据保持时间(2bits)
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u8 timing_width: 4; //tw:读/写使能信号宽度 系统时钟 0:16个 1:1个 2:2个 依此类推(4bits)
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u8 datawidth: 1; //PAP_PORT_8BITS or PAP_PORT_16BITS
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u8 endian: 1; //PAP_LE or PAP_BE
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u8 cycle: 1; //PAP_CYCLE_ONE or PAP_CYCLE_TWO
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u8 port_sel: 1; //PAP_PORT_A or PAP_PORT_B
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u8 use_sem: 1;
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u8 port_status: 2;
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u8 rd_en: 1;//是否使用rd引脚读取数据
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u8 pre: 1;//读极性
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u8 pwe: 1;//写极性
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u8 dma_no_waite: 1;//发送DMA不用等待发送完成(下次发送再检查是否发送完成)
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OS_SEM sem;
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void (*interrupt_cb)(void *priv);
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void *priv;
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};
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extern const struct device_operations pap_dev_ops;
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#endif
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