pdiusbd12biancheng.txt

PDIUSBD12固件编程例子

#ifndef __C51__ 
extern void interrupt (*OldTimerIsr)(); 
extern void interrupt (*OldUsbIsr)(); 


extern unsigned long ClockIsr; 

unsigned char far *privateBuffer; 
unsigned long dmaBuffer; 
unsigned long ioBuffer; // V2.1 
unsigned short ioSize, ioCount; // V2.1 
#endif 


void init_timer0(void) 
{ 
#ifdef __C51__ 


TMOD &= 0XF0; /* clear Timer 0 */ 
TMOD |= 0X1; 
TL0 = 0X0; /* value set by user */ 
TH0 = 0X0; /* value set by user */ 
ET0 = 1; /* IE.1*/ 
TR0 = 1; /* TCON.4 start timer */ 
PT0 = 1; 


EA = 1; 

#else 
disable(); 
OldTimerIsr = getvect(0x8); 
setvect(0x8, timer_isr); 
enable(); 


#endif 
} 


/* Interrupt Control Unit */ 

/* **** Enabled interrupts in Interrupt Enable Register **** 
**** GLOBAL INTERRUPT MUST BE ENABLED FOR ANY OTHER 
**** INTERRUPT TO WORK! 


*/ 
/* GLOBAL INTERRUPT DISABLED ALL INTERRUPTS 


ARE DISABLED */ 
/* External interrupt 0 */ 
/* Priority Level = 0 */ 
/* Timer 0 interrupt */ 
/* Priority Level = 0 */ 
void init_special_interrupts(void) 


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{ 

#ifdef __C51__ 
IT0 = 0; 
EX0 = 1; 
PX0 = 0; 


#else 
unsigned char c, eo; 


OldUsbIsr = getvect(0xD); 
setvect(0xD, usb_isr); 


c = inportb(0x21); 
c &= 0xDF; 
outportb(0x21, c); 


eo = 0x0; 
D12Eval_outportb(eo, 0x80); 
eo = 0x80; 
D12Eval_outportb(eo, 0x80); 


#endif 

} 

void init_port() 
{ 
#ifdef __C51__ 


P0 = 0xFF; 
P1 = 0xFF; 
P2 = 0xFF; 


#else 
unsigned long phys; 


privateBuffer = (unsigned char far *)farmalloc(DMA_BUFFER_SIZE*2L); 

if(privateBuffer == NULL) { 
printf("Error allocation memory!\n"); 
exit(1); 


} 
phys = (unsigned long)FP_SEG(privateBuffer)*16 + FP_OFF(privateBuffer); 
if( (phys&0x0ffffL) == 0 ) {


 dmaBuffer = phys; 
} 
else { 


 phys &= 0xf0000L; 

 phys += 0x10000; 

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 dmaBuffer = phys; 
} 
printf("privateBuffer allocated at %p, dmaBuffer at %lx.\n",

 privateBuffer, dmaBuffer); 
#endif 
} 

/*Serial Port */ 
/*Mode = 1 /8-bit UART

 Serial Port Interrupt = Disabled */ 
/*Receive = Enabled */ 
/*Auto Addressing = Disabled */ 
void init_serial(void) 
{ 
#ifdef __C51__ 

SCON = 0X52; 
PCON = 0X80 | PCON; 
TMOD = 0X20; 
TCON = 0x69; /* TCON */ 
TH1 = 0xF3; 


#endif 
} 

void on_exit(void) 
{ 
#ifndef __C51__ 

unsigned char c;

 disable(); 

c = inportb(0x21); 
c |= 0x20; 
outportb(0x21, c); 


 setvect(0xD, OldUsbIsr); 

 setvect(0x8, OldTimerIsr); 
disconnect_USB();


 enable();

 farfree(privateBuffer); 
#endif 
} 

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void main(void) 

{ 
BOOL in_loop = TRUE; 
unsigned char key, i; 


#ifndef __C51__ 
unsigned long ClockSec, last_clk; 
#endif


 init_port();

 init_serial(); 

 init_timer0(); 

 init_special_interrupts(); 

printf("\nPDIUSBD12 evaluation board firmware V2.2.\n"); 
printf("Copyright (c) Philips Semiconductors, 1998.\n"); 


/* Power on reset, lightup LEDs for 1 sec, 

disconnect and reconnect Soft-Connect */ 
printf("Re-connect PDIUSBD12 evaluation board to USB.\n"); 
reconnect_USB(); 


/* Main program loop */ 

while( in_loop ){ 

#ifdef __C51__ 

 if (bEPPflags.bits.timer){ 
DISABLE; 
bEPPflags.bits.timer = 0; 
ENABLE;


 if(bEPPflags.bits.configuration) 
check_key_LED(); 
}


 if(RI) { 
key = _getkey(); 
#else 
if (bEPPflags.bits.timer){ 
DISABLE; 


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 bEPPflags.bits.timer = 0; 
ENABLE;


 if(bEPPflags.bits.configuration) 
check_key_LED();


 ClockSec = ClockTicks*10/182; 

 if(ClockSec != last_clk) { 
printf("Idle time = %ld sec.\r", (ClockTicks - ClockIsr)*10/182); 
last_clk = ClockSec;

 } 
} 


if( bioskey(1) ) { 
key = bioskey(0); 
key &= 0xff; 


#endif 
switch(key) { 
case 0x1b: /* ESC */ 
#ifndef __C51__ 
in_loop = FALSE; 
#endif 
break;

 case 'r': 
D12_SendResume(); 
break;


 case 'i': 
if(bEPPflags.bits.control_state == USB_IDLE) 
printf("Control state = USB_IDLE."); 
else if(bEPPflags.bits.control_state == USB_RECEIVE) 
printf("Control state = USB_RECEIVE."); 
else if(bEPPflags.bits.control_state == USB_TRANSMIT) 
printf("Control state = USB_TRANSMIT."); 
printf(" ControlData.wCount = %x.\n", ControlData.wCount); 
#ifndef __C51__ 
printf("Endpoint 4 (Bulk Out) Status = %x, Endpoint 5 (Bulk In) Status = %x.\n", 
D12_ReadEndpointStatus(4), D12_ReadEndpointStatus(5)); 
printf("ioSize = %x, ioCount = %x.\n", ioSize, ioCount); 
#else 
printf("Endpoint 4 (Bulk Out) Status = %bx, Endpoint 5 (Bulk In) Status = %bx.\n", 
D12_ReadEndpointStatus(4), D12_ReadEndpointStatus(5)); 
#endif 
if(bEPPflags.bits.dma_state == DMA_IDLE) 
printf("DMA_State = DMA_IDLE.\n"); 

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else if(bEPPflags.bits.dma_state == DMA_RUNNING) 
printf("DMA_State = DMA_RUNNING.\n"); 
else if(bEPPflags.bits.dma_state == DMA_PENDING) 
printf("DMA_State = DMA_PENDING.\n"); 

#ifndef __C51__ 
printf("Last Device Request: bmRequestType = 0x%x, bRequest= 0x%x, 

wValue = 0x%x, wLength = 0x%x, wIndex = 0x%x.\n", 
ControlData.DeviceRequest.bmRequestType, 
ControlData.DeviceRequest.bRequest, 
ControlData.DeviceRequest.wValue, 
ControlData.DeviceRequest.wLength, 
ControlData.DeviceRequest.wIndex); 

#else 
MCU_HOSTDACK = 1; 
printf("CPLD counter read back = 0x%bx, 0x%bx.\n", inportb(CPLD_CNT0),

 inportb(CPLD_CNT1)); 
MCU_HOSTDACK = 0; 
printf("Last Device Request: bmRequestType = 0x%bx, bRequest= 0x%bx, 

wValue = 0x%x, wLength = 0x%x, wIndex = 0x%x.\n", 

 ControlData.DeviceRequest.bmRequestType, 
ControlData.DeviceRequest.bRequest, 
ControlData.DeviceRequest.wValue, 
ControlData.DeviceRequest.wLength, 
ControlData.DeviceRequest.wIndex); 

#endif 

printf("Data: "); 
for(i = 0; i < ControlData.DeviceRequest.wLength; i ++) 
#ifndef __C51__ 
printf("0x%x, ", *((ControlData.dataBuffer)+i)); 
#else 
printf("0x%bx, ", *((ControlData.dataBuffer)+i)); 
#endif 
printf("\n"); 


break;

 case '\r': 
reconnect_USB(); 
break;


 case 'v': 
if(bEPPflags.bits.verbose == 0) { 

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 printf("Verbose Mode = ON.\n"); 
DISABLE; 
bEPPflags.bits.verbose = 1; 
ENABLE; 

} 

else { 
printf("Verbose Mode = OFF.\n"); 
DISABLE; 
bEPPflags.bits.verbose = 0; 
ENABLE; 

} 
break; 
default: 
break;


 } 
} 
if (bEPPflags.bits.bus_reset) { 

 DISABLE; 
bEPPflags.bits.bus_reset = 0; 
ENABLE; 
printf("Bus reset!\n"); 


} // if bus reset 

 if (bEPPflags.bits.suspend) { 
DISABLE; 
bEPPflags.bits.suspend= 0; 
ENABLE; 
suspend_change(); 
printf("Suspend change!\n"); 

} // if suspend change

 if (bEPPflags.bits.setup_packet){ 
DISABLE; 
bEPPflags.bits.setup_packet = 0; 
ENABLE; 
control_handler(); 

} // if setup_packet

 if(bEPPflags.bits.setup_dma) { 
DISABLE; 
bEPPflags.bits.setup_dma = 0; 
ENABLE; 
setup_dma(); 

} // if setup_dma 

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} // Main Loop 

 on_exit(); 
} 


void suspend_change(void) 
{ 
} 


void stall_ep0(void) 

{ 
D12_SetEndpointStatus(0, 1); 
D12_SetEndpointStatus(1, 1); 


} 

void disconnect_USB(void) 
{ 
// Initialize D12 configuration 
D12_SetMode(D12_NOLAZYCLOCK|D12_CLOCKRUNNING, D12_SETTOONE | D12_CLOCK_12M); 
} 

void connect_USB(void) 

{ 
// reset event flags 
DISABLE; 
bEPPflags.value = 0; 
ENABLE; 


// V2.1 enable normal+sof interrupt 
D12_SetDMA(D12_ENDP4INTENABLE | D12_ENDP5INTENABLE); 


// Initialize D12 configuration 
D12_SetMode(D12_NOLAZYCLOCK|D12_CLOCKRUNNING|D12_SOFTCONNECT, 
D12_SETTOONE | D12_CLOCK_12M); 
} 

void reconnect_USB(void) 
{ 
unsigned long clk_cnt; 


#ifndef __C51__ 
D12Eval_outportb(0xF, 0xF); 
#else 
MCU_LED0 = 0; 


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MCU_LED1 = 0; 
#endif 
disconnect_USB(); 

printf("Wait for 1 second ...\n"); 

clk_cnt = ClockTicks; 
while(ClockTicks < clk_cnt + 20) 
; 
connect_USB(); 


#ifndef __C51__ 
D12Eval_outportb(0x0, 0xF); 

#else 
MCU_LED0 = 1; 
MCU_LED1 = 1; 

#endif 
} 

void init_unconfig(void) 
{ 
unsigned char i; 

D12_SetEndpointEnable(0); /* Disable all endpoints but EPP0. */ 
} 

void init_config(void) 
{ 

D12_SetEndpointEnable(1); /* Enable generic/iso endpoints. */ 
} 
void single_transmit(unsigned char * buf, unsigned char len) 
{ 

if( len <= EP0_PACKET_SIZE) { 
D12_WriteEndpoint(1, buf, len); 
} 
} 

void code_transmit(unsigned char code * pRomData, unsigned short len) 

{ 
ControlData.wCount = 0; 
if(ControlData.wLength > len)

 ControlData.wLength = len; 

ControlData.pData = pRomData; 

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if( ControlData.wLength >= EP0_PACKET_SIZE) { 
D12_WriteEndpoint(1, ControlData.pData, EP0_PACKET_SIZE); 
ControlData.wCount += EP0_PACKET_SIZE; 

 DISABLE; 
bEPPflags.bits.control_state = USB_TRANSMIT; 
ENABLE;


 } 

 else { 
D12_WriteEndpoint(1, pRomData, ControlData.wLength); 
ControlData.wCount += ControlData.wLength; 
DISABLE; 
bEPPflags.bits.control_state = USB_IDLE; 
ENABLE;

 } 
} 

void check_key_LED(void) 
{ 
static unsigned char c, last_key = 0xf; 

#ifndef __C51__ 
c = D12Eval_inportb(); 
#else 
c = MCU_SWM1 & MCU_SWM2; 

#endif 
c &= 0x0f; 
if (c != last_key) { 

 D12_WriteEndpoint(3, &c, 1); 
} 
last_key = c;


 if(bEPPflags.bits.ep1_rxdone) { 
DISABLE; 
bEPPflags.bits.ep1_rxdone = 0; 
ENABLE; 


#ifndef __C51__ 
D12Eval_outportb(GenEpBuf[3], 0xF); 

#else 
MCU_LED0 = !(GenEpBuf[3] & 0x1); 
MCU_LED1 = !(GenEpBuf[3] & 0x2); 

#endif 
} 
} 

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void setup_dma() 
{ 
#ifndef __C51__ 


if(!(ioRequest.bCommand & 0x80)) { 
bEPPflags.bits.dma_disable = 1; // V2.1, x86 only 
D12_SetDMA(D12_ENDP4INTENABLE | D12_ENDP5INTENABLE); 
setup_io();


 return; 
} 
#endif 
bEPPflags.bits.dma_disable = 0; // V2.1 


 dma_start(&ioRequest);

 DISABLE; 
bEPPflags.bits.dma_state = DMA_RUNNING; 
ENABLE; 


 single_transmit(0, 0); 

if(ioRequest.bCommand & 0x1) 
D12_SetDMA(D12_BURST_16 | D12_DMAENABLE | D12_DMA_INTOKEN); 
else 

 D12_SetDMA(D12_BURST_16 | D12_DMAENABLE); 
} 
#ifndef __C51__ 
// setup_io() setup buffer address for I/O mode Main endpoints transfer, 
// it only works on PC evaluation kit. 
void setup_io() 
{ 


unsigned long offset; 
unsigned char far *fp; 
unsigned short seg, off; 
offset = (((unsigned long)ioRequest.bAddressH)<<16)


 + ioRequest.uAddressL;