skyeye_mach_pxa270.c

SkyEye是一个可以运行嵌入式操作系统的硬件仿真工具

#include <sys/time.h>
#include <sys/types.h>
#include <unistd.h>

#include "armdefs.h"
#include "pxa.h"

/*ywc 2005-03-30*/
#include "skyeye_flash.h"

#define F_CORE (100 * 1024 * 1024)	//core frequence
#define F_RTC 32768		//RTC
#define F_OS	3686400		//OS timer
#define RT_SCALE (F_CORE / F_RTC) / 50
#define OS_SCALE (F_CORE / F_OS / 10) / 50

#define FF_SCALE	200	//FF UART

/* 2007-01-18 added by Anthony Lee : for new uart device frame */
#include "skyeye_uart.h"

//ywc,2004-11-30,declare a external array which stores touchscreen event information
extern unsigned int Pen_buffer[8];	// defined in skyeye_lcd.c
//ywc,2004-11-30,declare a external array which stores touchscreen event information,end


//chy 2005-09-19, the define of pxa27x_io_t is in pxa.h
//static pxa270_io_t pxa270_io;
pxa270_io_t pxa270_io;


static void refresh_irq (ARMul_State *);
static void
pxa270_io_reset ()
{
	memset (&pxa270_io, 0, sizeof (pxa270_io));
	//chy 2003-08-25
	pxa270_io.cccr = 0x121;	// 1 0010 0001
	pxa270_io.cken = 0x17def;


	pxa270_io.ts_int = 1 << 15;
	pxa270_io.ts_addr_begin = 0x40000300;
	pxa270_io.ts_addr_end = 0x4000031f;
	//ywc,2004-11-30,evaluate io of LCD and Touchscreen,end

};
void
pxa270_io_write_byte (ARMul_State * state, ARMword addr, ARMword data)
{
	return;
}

void
pxa270_io_write_halfword (ARMul_State * state, ARMword addr, ARMword data)
{
	return;
}

static
pxa_set_intr (u32 interrupt)
{
	pxa270_io.icpr |= (1 << interrupt);
}
static int
pxa_pending_intr (u32 interrupt)
{
	return ((pxa270_io.icpr & (1 << interrupt)));
}
static void
pxa_update_intr (void *mach)
{
	struct machine_config *mc = (struct machine_config *) mach;
	ARMul_State *state = (ARMul_State *) mc->state;

	pxa270_io.icip = (pxa270_io.icmr & pxa270_io.icpr) & ~pxa270_io.iclr;
	pxa270_io.icfp = (pxa270_io.icmr & pxa270_io.icpr) & pxa270_io.iclr;
	state->NirqSig = pxa270_io.icip ? LOW : HIGH;
	state->NfiqSig = pxa270_io.icfp ? LOW : HIGH;

}
static void
pxa270_update_int (ARMul_State * state)
{
	pxa270_io.icip = (pxa270_io.icmr & pxa270_io.icpr) & ~pxa270_io.iclr;
	pxa270_io.icfp = (pxa270_io.icmr & pxa270_io.icpr) & pxa270_io.iclr;
	state->NirqSig = pxa270_io.icip ? LOW : HIGH;
	state->NfiqSig = pxa270_io.icfp ? LOW : HIGH;
}

static void
pxa270_io_write_word (ARMul_State * state, ARMword addr, ARMword data)
{
	pxa_ioregnum_t ioregaddr = addr;

	//ywc,2004-11-30,add for pxa's LCD simulation
	u32 tmp;
	mem_bank_t *mbp;
	//ywc,2004-11-30,add for pxa's LCD simulation,end

	//printf("SKYEYE:pxa270_io_write_word: io addr 0x%x, value 0x%x\n",ioregaddr,data);

	switch (ioregaddr) {
	 /*RTC*/ case RCNR:
		pxa270_io.rcnr = data;
		break;
	case RTAR:
		pxa270_io.rtar = data;
		break;
	case RTSR:
		pxa270_io.rtsr |= (data & 0xc);
		pxa270_io.rtsr &= ~(data & 0x3);
		break;
	case RTTR:
		pxa270_io.rttr = data & 0x3ffffff;
		break;
		/*OS timer */
	case OSCR:
		pxa270_io.oscr = data;
		break;
	case OSMR0:
		pxa270_io.osmr0 = data;
		break;
	case OSMR1:
		pxa270_io.osmr1 = data;
		break;
	case OSMR2:
		pxa270_io.osmr2 = data;
		break;
	case OSMR3:
		pxa270_io.osmr3 = data;
		break;
	case OWER:
		pxa270_io.ower |= data & 0x1;
		break;
	case OSSR:
		pxa270_io.ossr &= ~(data & 0xf);
		break;
	case OIER:
		pxa270_io.oier = data & 0xf;
		break;

		/*interrupt control */
		//ywc,2004-11-30,for touchscreen use ICPR
	case ICPR:
		pxa270_io.icpr = data;
		//printf("\n write ICPR=%x",pxa270_io.icpr);
		//printf("\n");
		break;
		//ywc,2004-11-30,for touchscreen use ICPR,end

		//case ICIP:
		//case ICFP:
		/*read only */
		//      break;
	case ICMR:
		pxa270_io.icmr = data;
		pxa270_io.icpr &= ~data;
		break;
	case ICLR:
		pxa270_io.iclr = data;
		break;

		//ffuart contril
	case FFTHR:
		{		/*static tx_cnt=0; */
			unsigned char c = data;

			/* 2007-01-18 modified by Anthony Lee : for new uart device frame */
			skyeye_uart_write(-1, &c, 1, NULL);

			/*chy 2004-07-21 from luzhetao: after write char, should set some value */
			pxa270_io.ffiir &= ~0x2;
			pxa270_io.ffiir |= 0x1;
			pxa270_io.fflsr &= ~0x60;
			//tx_cnt++;
			//pxa270_io.ffier|=0x2;
			/*
			   if(tx_cnt>63){
			   tx_cnt=0;
			   pxa270_io.ffiir|=0x2;
			   pxa270_io.fflsr|=0x60;
			   refresh_irq(state);
			   }
			 */
			//printf("SKYEYE: write FFTHR %x, iir %x,lsr %x, ier %x\n",data, pxa270_io.ffiir,pxa270_io.fflsr,pxa270_io.ffier);
		}
		break;
	case FFIER:
		pxa270_io.ffier = data & 0xff;
		break;
	case FFFCR:		//write only
		pxa270_io.fffcr = data & 0xc7;
		//pxa270_io.ffiir = data & 0xc7 ;
		//if(pxa270_io.fffcr & 2
		//printf("SKYEYE: write FFFCR %x, but is ffiir %x\n",pxa270_io.fffcr,pxa270_io.ffiir);
		break;
	case FFLCR:
		pxa270_io.fflcr = data & 0xff;
		break;
		//core clock 
	case CCCR:
		pxa270_io.cccr = data & 0x3ff;
		break;
	case CKEN:
		pxa270_io.cken = data & 0x17def;
		break;
	case OSCC:
		pxa270_io.oscc = data & 0x3;
		break;

		//ywc,2004-11-30,add for pxa's LCD simulation
#if 0
	case LCCR0:
		tmp = pxa270_io.lccr0;
		pxa270_io.lccr0 = data;
		if ((!(tmp & LCCR0_ENB)) && (pxa270_io.lccr0 & LCCR0_ENB)) {
			if (once)
				break;
			once++;
			/*
			   printf("\nFDADR0=%x,FDADR1=%x",pxa270_io.fdadr0,pxa270_io.fdadr1);
			   printf("\n");
			   pxa270_io.lcd_addr_begin = pxa270_io.fdadr0 + 16*(2+2);
			   printf("\nlcd_addr_begin=%x",pxa270_io.lcd_addr_begin);
			   printf("\n");
			 */
			pxa270_update_lcd (state);
		}
		break;
	case LCCR1:
		pxa270_io.lccr1 = data;
		break;
	case LCCR2:
		pxa270_io.lccr2 = data;
		break;
	case LCCR3:
		pxa270_io.lccr3 = data;
		break;
	case FDADR0:
		pxa270_io.fdadr0 = data;

		//printf("\nFDADR0=%x",pxa270_io.fdadr0);
		//printf("\n");
		/*      
		   mbp = bank_ptr(pxa270_io.fdadr0); 
		   if(!mbp){
		   fprintf(stderr, "No bank at address 0x%x", pxa270_io.fdadr0);
		   return;
		   }   
		   fdadr0ADDRESS=(u32 *) &state->mem.rom[mbp - skyeye_config.mem.mem_banks][(pxa270_io.fdadr0 - mbp->addr)];
		   printf("\n %p",fdadr0ADDRESS);
		 */
		//       printf("\n 0: %x",*((u32 *)fdadr0ADDRESS));
		//       printf("\n 1: %x",*((u32 *)fdadr0ADDRESS+1));
		//       printf("\n 2: %x",*((u32 *)fdadr0ADDRESS+2));
		//       printf("\n 3: %x",*((u32 *)fdadr0ADDRESS+3));
		//printf("\n");

		break;
	case FDADR1:
		pxa270_io.fdadr1 = data;
		//printf("\nFDADR1=%x",pxa270_io.fdadr1);
		//printf("\n");
		break;
	case FSADR0:
		pxa270_io.fsadr0 = data;
		//printf("\nFSADR0=%x",pxa270_io.fsadr0);
		//printf("\n");
		break;
	case FSADR1:
		pxa270_io.fsadr1 = data;
		//printf("\nFSADR1=%x",pxa270_io.fsadr1);
		//printf("\n");
		break;
#endif
		//ywc,2004-11-30,add for pxa's LCD simulation,end
#if 0
	case FFIIR:		//read only
	case FFMCR:		//no use                   
	case FFMSR:		//read only no use
	case FFSPR:		// no use
	case FFISR:		// no use
#endif

	default:
		//chy 2003-09-03 if debug, uncommit it
		//printf("SKYEYE: pxa270_io_write_word: unknown addr 0x%x, reg15 0x%x \n", addr,state->Reg[15]);
		;
	};

};

ARMword
pxa270_io_read_byte (ARMul_State * state, ARMword addr)
{
	return 0;
}

ARMword
pxa270_io_read_halfword (ARMul_State * state, ARMword addr)
{
	return 0;
}

ARMword
pxa270_io_read_word (ARMul_State * state, ARMword addr)
{
	u32 data;
	pxa_ioregnum_t ioregaddr = addr;

	//ywc,2004-11-30,add for pxa's Touchscreen simulation
	u32 ts_addr;


	//printf("SKYEYE:pxa270_io_read_word: begin io addr 0x%x \n",ioregaddr);

	//ywc,2004-11-30,add for pxa's Touchscreen simulation,end

	//ywc 2004-11-30 read the touch srceen data buffer,return to the ts device driver
	ts_addr = addr & ~3;	// 1 word==4 byte
	if (ts_addr >= pxa270_io.ts_addr_begin
	    && ts_addr <= pxa270_io.ts_addr_end) {
		data = pxa270_io.
			ts_buffer[(ts_addr - pxa270_io.ts_addr_begin) / 4];
		return data;
	}
	//ywc 2004-11-30 read the touch srceen data buffer,return to the ts device driver,end

	switch (addr) {
	 /*RTC*/ case RCNR:
		data = pxa270_io.rcnr;
		break;
	case RTAR:
		data = pxa270_io.rtar;
		break;
	case RTSR:
		data = pxa270_io.rtsr;
		break;
	case RTTR:
		data = pxa270_io.rttr;
		break;