📄 pd6700_ide.c
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/****************************************Copyright (c)**************************************************** Guangzhou ZHIYUAN electronics Co.,LTD.** ** http://www.zyinside.com****--------------File Info-------------------------------------------------------------------------------** File Name: pd6700_id.c** Last modified Date: 2006-01-14 ** Last Version: v1.0** Description: Linxu系统下PD6710的ATA模式驱动应用程序。** Note: **------------------------------------------------------------------------------------------------------** Created By: 周立山** Created date: 2006-01-01 ** Version: v1.0** Descriptions:****------------------------------------------------------------------------------------------------------** Modified by:** Modified date:** Version:** Description:**********************************************************************************************************/#ifndef __KERNEL__ #define __KERNEL__#endif#ifndef MODULE #define MODULE#endif#include <linux/module.h>#include <linux/sched.h>#include <linux/kernel.h> /* printk() */#include <linux/init.h>#include <linux/config.h>#include <linux/types.h>#include <linux/fcntl.h>#include <linux/string.h>#include <linux/errno.h>#include <linux/timer.h>#include <linux/slab.h>#include <linux/ioport.h>#include <linux/delay.h>#include <linux/proc_fs.h>#include <linux/ptrace.h>#include <linux/hdreg.h>#include <linux/major.h>#include <asm/irq.h>#include <asm/io.h>#include <asm/bitops.h>#include <asm/segment.h>#include <asm/system.h>#include "pd6700.h"#include <asm/hardware.h>#define io_base(port) (*(volatile u_char *)(vCF_IO_BASE + port))//===========================================================================#define PCMCIA_DEBUG 5 // 是否打印调试信息//===========================================================================#ifdef PCMCIA_DEBUGstatic int pc_debug = PCMCIA_DEBUG;MODULE_PARM(pc_debug, "i");#define DEBUG(n, args...) if (n <= pc_debug) {printk(KERN_INFO args);}static const char *version ="pd6700.c 1.265 2005/12/08 zhoulishan";#else#define DEBUG(n, args...)#endifstruct ide_info_t { int ndev; int hd;}ide_info_t;// PCMCIA卡接口信息typedef struct socket_info_t { int ioaddr; // IO 接口地址 u_short psock; // 接口号 u_char cs_irq; // PD6710芯片中断 u_char intr; // 中断号 u_char time0_setup; // 状态 u_char time0_command; u_char time0_recovery; u_char time1_setup; // 状态 u_char time1_command; u_char time1_recovery; int io_base; u_char io_len; int ctl_base; u_char ctl_len; u_char ata_irq; struct ide_info_t ide;} socket_info_t;static socket_info_t socket[1]={ { ioaddr: 0x3e0 , // psock: 0, // cs_irq: 3, // 卡检测中断 intr: 3, // IRQ // 总线时序参数 time0_setup: 0, // 40ns = 40*0 + 40 time0_command: 3, // 160ns =(40*3 + 40 time0_recovery: 0, // 40ns = 40*0 + 40 time1_setup: 0, time1_command: 3, time1_recovery: 0, io_base: vCF_IO_BASE + 0x1f0 , // IDE地址设置 io_len: 8, ctl_base: vCF_IO_BASE + 0x3f6 , ctl_len: 2, ata_irq: IRQ_CF_RDY // IDE使用的中断 }};/********************************************************************************************************/static spinlock_t bus_lock = SPIN_LOCK_UNLOCKED;/*********************************************************************************************************** Function name: pd67_get** Descriptions: 获取接口寄存器的值** Input:sock,接口号** reg,寄存器索引** Output :** Created by:** Created Date: **-------------------------------------------------------------------------------------------------------** Modified by:** Modified Date: **------------------------------------------------------------------------------------------------------********************************************************************************************************/static u_char pd67_get(u_short sock, u_short reg){ unsigned long flags; spin_lock_irqsave(&bus_lock,flags); // 关中断 { int port = socket[sock].ioaddr; // IO地址 u_char val; reg = PD67_REG(socket[sock].psock, reg); // 获取寄存器索引 io_base(port) = (u_char) reg; // 写寄存器地址 val = io_base(port+1); // 读寄存器值 spin_unlock_irqrestore(&bus_lock,flags); // 开中断 printk(KERN_ERR "reg = 0x%x ,port = 0x%x , val = 0x%x \n", reg, port ,val); return val; }}/*********************************************************************************************************** Function name: pd67_set** Descriptions: 写入指定寄存器的值** Input:** Output :** Created by:** Created Date: **-------------------------------------------------------------------------------------------------------** Modified by:** Modified Date: **------------------------------------------------------------------------------------------------------********************************************************************************************************/static void pd67_set(u_short sock, u_short reg, u_char data){ unsigned long flags; spin_lock_irqsave(&bus_lock,flags); { int port = socket[sock].ioaddr; u_char val = PD67_REG(socket[sock].psock, reg); io_base(port) = (u_char)val; io_base(port+1) = (u_char)data; spin_unlock_irqrestore(&bus_lock,flags); }}/*********************************************************************************************************** Function name: pd67_bset** Descriptions: 设置寄存器标记位.先读出寄存器的值,再将该值与mask求或，最后写入到寄存器** Input:sock, 接口索引号** reg,寄存器索引号** mask,屏蔽位** Output : 无** Created by:** Created Date: **-------------------------------------------------------------------------------------------------------** Modified by:** Modified Date: **------------------------------------------------------------------------------------------------------********************************************************************************************************/static void pd67_bset(u_short sock, u_short reg, u_char mask){ u_char d = pd67_get(sock, reg); d |= mask; pd67_set(sock, reg, d);}/*********************************************************************************************************** Function name: pd67_bclr** Descriptions: 清零标志位,将寄存器中mask相应的位清零** Input:sock, 接口索引号** reg,寄存器索引号** mask,屏蔽位** Output :** Created by:** Created Date: **-------------------------------------------------------------------------------------------------------** Modified by:** Modified Date: **------------------------------------------------------------------------------------------------------********************************************************************************************************/static void pd67_bclr(u_short sock, u_short reg, u_char mask){ u_char d = pd67_get(sock, reg); d &= ~mask; pd67_set(sock, reg, d);}/*********************************************************************************************************** Function name: pd67_bflip** Descriptions: 该函数集成了pd67_bset和pd67_bclr的功能，通过b的值选择相关的操作，b为0清标志位，反之置标志位** Input:sock,接口索引** reg, 寄存器索引** mask, 屏蔽位** b, 操作标志位** Output : 无** Created by:** Created Date: **-------------------------------------------------------------------------------------------------------** Modified by:** Modified Date: **------------------------------------------------------------------------------------------------------********************************************************************************************************/static void pd67_bflip(u_short sock, u_short reg, u_char mask, int b){ u_char d = pd67_get(sock, reg); // 读出寄存器原值 if (b) d |= mask; else d &= ~mask; pd67_set(sock, reg, d); // 写入寄存器}/*********************************************************************************************************** Function name: pd67_get_pair** Descriptions: 获取寄存器连续两个值,将寄存器reg和reg+1（高8位）组成一个16位的值，** Input:sock , 接口号** reg , 寄存器索引** Output : 返回16位的值** Created by:⌨️ 快捷键说明
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