usb.t

microwindows移植到S3C44B0的源码

/*
 *  linux/arch/armnommu/mach-s3c44b0/usb.c
 *  2003 tpu <[e-mail]>
 */
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/interrupt.h>

#include <asm/hardware.h>
#include <asm/irq.h>
#include <asm/arch/irq.h>
#include <asm/system.h>


#define USB_DATA	REGB(0x6000000)
#define USB_CMD		REGB(0x6000001)

void D12_SetAddressEnable(int address)
{
 USB_CMD = 0xd0;
 USB_DATA = address;
}

void D12_SetEndpointEnable(int enable)
{
 USB_CMD = 0xd8;
 USB_DATA = enable;
}

void D12_SetMode(int config, int clkdiv)
{
 USB_CMD = 0xf3;
 USB_DATA = config;
 USB_DATA = clkdiv;
}

void D12_SetDMA(int mode)
{
 USB_CMD = 0xfb;
 USB_DATA = mode;
}

void D12_SetEndpointStatus(int ep, int data)
{
 USB_CMD = 0x40+ep;
 USB_DATA = data;
}

static void d12_interrupt(int irq, void *dev_id, 
		          struct pt_regs *regs)
{
 int i, data, d0, d1, d2;
 int intr;

 USB_CMD = 0xf4;
 intr = USB_DATA;
 printk("PDIUSBD12 interrupt: %02x\n", intr);
 
 
 if(intr&0x03){
     USB_CMD = 0x00;
     d0 = USB_DATA;
     USB_CMD = 0x80;
     d1 = USB_DATA;
     USB_CMD = 0x40;
     d2 = USB_DATA;
     printk("ep0: 00=%02x 80=%02x 40=%02x ", d0, d1, d2);
 
     USB_CMD = 0xf0;
     data = USB_DATA;
     data = USB_DATA;
     printk(" data: ");

     for(i=0; i<data; i++){
         printk("%02x ", USB_DATA);
     }
     printk("\n");
     USB_CMD = 0xf1;
     USB_CMD = 0xf2;
 
     USB_CMD = 0x01;
     d0 = USB_DATA;
     USB_CMD = 0x81;
     d1 = USB_DATA;
     USB_CMD = 0x41;
     d2 = USB_DATA;
     printk("ep1: 01=%02x 81=%02x 41=%02x\n", d0, d1, d2);
     USB_CMD = 0xf1;
     USB_CMD = 0xf2;
 }
 
}

static int __init D12_test(void)
{
 printk("PDIUSBD12 test!\n");

 /* nGCS3 */
 PCONB |= 0x100;

 /* Rising Edge Interrupt */
 PCONG |= 0x00000030;
 EXTINT &= 0xfffff0ff;
 EXTINT |= 0x00000400;
 
 /* Suspend Port Config */
 PCONF &= 0x0007ffff;
 PCONF |= 0x00080000;

 /* Enable Device */
 PDATF |= 0x00000100;
 
// D12_SetAddressEnable(0x80);
// D12_SetEndpointEnable(1);
 D12_SetDMA(0xc0);
 D12_SetMode(0x1e, 0x03);
 D12_SetEndpointStatus(0, 1);
 D12_SetEndpointStatus(1, 1);

 request_irq(INT_EINT2, d12_interrupt, 0, "pdiusbd12", NULL);
 return 0;
}
__initcall(D12_test);