?? usb_main.c
字號:
#include "usb_inc.h"
//=====================================
/*
//*************************************************************************
// USB protocol function pointer arrays
//*************************************************************************
*/
code void (*StandardDeviceRequest[])(void) =
{
get_status,
clear_feature,
reserved,
set_feature,
reserved,
set_address,
get_descriptor,
reserved,
get_configuration,
set_configuration,
get_interface,
set_interface,
reserved,
reserved,
reserved,
reserved
};
code void (*VendorDeviceRequest[])(void) =
{
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
reserved,
read_write_register,
reserved,
reserved,
reserved
};
timer_isr() interrupt 1
{
DISABLE;
ClockTicks++;
bEPPflags.bits.timer = 1;
ENABLE;
}
usb_isr() interrupt 2
{
unsigned char x;
DISABLE;
//fn_usb_isr();
//unsigned int st;
//unsigned char x,st;
bEPPflags.bits.in_isr = 1;
x = D12_ReadInterruptRegister();
//st=x;
//i=st;
if(x != 0) {
//if(i_st & D12_INT_BUSRESET) {
if(x & 0x40) {
bus_reset();
bEPPflags.bits.bus_reset = 1;
}
//if(x & D12_INT_EOT)
//dma_eot();
if(x & D12_INT_SUSPENDCHANGE)
bEPPflags.bits.suspend = 1;
if(x & D12_INT_ENDP0IN)
ep0_txdone();
if(x & D12_INT_ENDP0OUT)
ep0_rxdone();
if(x & D12_INT_ENDP1IN)
ep1_txdone();
if(x & D12_INT_ENDP1OUT)
ep1_rxdone();
if(x & D12_INT_ENDP2IN)
main_txdone();
if(x & D12_INT_ENDP2OUT)
main_rxdone();
}
bEPPflags.bits.in_isr = 0;
ENABLE;
}
//==================================================
/*
PCON: SMOD | - | - | - | GF1|GF0|PD |IDL|
TCON: TF1 | - |TF0| - |IE1 |IT1|IE0|IT0|
*/
/* Configure Timer 0
- Mode = 1
- Interrupt = ENABLED
- Clock Source = INTERNAL
- Enable Gating Control = DISABLED
*/
void init_timer0(void)
{
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;
}
void init_port()
{
P0 = 0xFF;
P1 = 0xFF;
P2 = 0xFF;
P3 = 0xFF;
D12SUSPD = 0; //D12 not in Suspend
}
//=================================================================
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;
// ENABLE_INTERRUPTS;
D12_SetEndpointStatus(4, 0);
D12_SetEndpointStatus(5, 0);
// V2.1 enable normal+sof interrupt
D12_SetDMA(D12_ENDP4INTENABLE | D12_ENDP5INTENABLE);
// Initialize D12 configuration
//D12_SetMode(D12_NOLAZYCLOCK ,D12_SETTOONE | D12_CLOCK_12M );
D12_SetMode(D12_NOLAZYCLOCK |D12_CLOCKRUNNING|D12_SOFTCONNECT,D12_SETTOONE | D12_CLOCK_12M );
}
void reconnect_USB(void)
{
unsigned long clk_cnt;
// Pull-down D12's SUSPEND pin
// Disable 74HCT123 pulse generation before disconnect
// Release D12's SUSPEND pin after receiving bus reset from host
D12SUSPD = 0;
disconnect_USB();
ENABLE;
//printf("Wait for 1 second ...\n");
for (clk_cnt=0;clk_cnt<50000;clk_cnt++);
DISABLE;
connect_USB();
}
//------------------------------
void stall_ep0(void)
{
D12_SetEndpointStatus(0, 1);
D12_SetEndpointStatus(1, 1);
}
//---------------
//----------------------------------
void check_key_LED(void)
{
static unsigned char c, last_key = 0xf;
c = MCU_SWM0 & MCU_SWM1;
c &= 0x0f;
if (c != last_key) {
D12_WriteEndpoint(3, 1, &c);
}
last_key = c;
if(bEPPflags.bits.ep1_rxdone) {
DISABLE;
bEPPflags.bits.ep1_rxdone = 0;
ENABLE;
MCU_LED0 = !(GenEpBuf[3] & 0x1);
MCU_LED1 = !(GenEpBuf[3] & 0x2);
}
}
//--------------------------
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, len, buf);
}
}
void code_transmit(unsigned char code * pRomData, unsigned short len)
{
ControlData.wCount = 0;
if(ControlData.wLength > len)
ControlData.wLength = len;
ControlData.pData = pRomData;
if( ControlData.wLength >= EP0_PACKET_SIZE) { // 如果發送代碼大于包長度
D12_WriteEndpoint(1, EP0_PACKET_SIZE, ControlData.pData);
ControlData.wCount += EP0_PACKET_SIZE;
DISABLE;
bEPPflags.bits.control_state = USB_TRANSMIT;
ENABLE;
}
else { //發送代碼小于包長度
D12_WriteEndpoint(1, ControlData.wLength, pRomData);
ControlData.wCount += ControlData.wLength;
DISABLE;
bEPPflags.bits.control_state = USB_IDLE;
ENABLE;
}
}
//---------------------------
void setup_dma()
{
ioSize = ioRequest.uSize;
ioCount = 0;
DISABLE;
bEPPflags.bits.dma_state = DMA_RUNNING;
ENABLE;
single_transmit(0, 0);
if(ioRequest.bCommand & 0x1) {
if(ioSize > 64 || ioSize == 0) {
//if(bNoRAM)
D12_WriteEndpoint(5, 64, EpBuf);
//else
// D12_WriteEndpoint(5, 64, MainEpBuf);
ioCount += 64;
}
else {
//if(bNoRAM)
D12_WriteEndpoint(5, ioSize, EpBuf);
//else
// D12_WriteEndpoint(5, ioSize, MainEpBuf);
ioCount += ioSize;
}
}
}
//------------------------------
void control_handler()
{
unsigned char type, req;
type = ControlData.DeviceRequest.bmRequestType & USB_REQUEST_TYPE_MASK; //0x60
req = ControlData.DeviceRequest.bRequest & USB_REQUEST_MASK; //0x0F
//help_devreq(type, req); // print out device request
if (type == USB_STANDARD_REQUEST)
(*StandardDeviceRequest[req])();
else if (type == USB_VENDOR_REQUEST)
(*VendorDeviceRequest[req])();
else
stall_ep0();
}
//-------------------------------------------
//-------------------------------------------
void main()
{
unsigned char i;
//bNoRam=1;
//DISABLE;
init_port();
init_timer0();
EA = 0;
//for test
MCU_LED0=0;
MCU_LED1=0;
MCU_LED0=1;
MCU_LED1=1;
IE1=0;
IT1=0;
EX1=1;
//-----------------------
//for(i = 0; i < 16; i ++)
// MainEpBuf[i] = i;
//for(i = 0; i < 16; i ++) {
// if(MainEpBuf[i] != i)
// break;
// }
//if(i < 16)
bNoRAM = FALSE;
//else
// bNoRAM = FALSE;
//--------------------------
//bNoRam=TRUE;
//---------------------------
//----------------------------
/*
if(MCU_SWM0 == 0 && MCU_SWM1 == 0) {
MCU_D12RST = 0;
MCU_D12RST = 1;
D12_SetDMA(0x0);
}
*/
//if((i = D12_GetDMA()) == 0xC3)
// {D12_SendResume();}
//else {
// bEPPflags.value = 0;
/* Power on reset, lightup LEDs for 1 sec,
disconnect and reconnect Soft-Connect */
//printf("\nPDIUSBD12 SMART evaluation board firmware V3.0.\n");
i=D12_ReadInterruptRegister();
i=0;
//i=D12_ReadEndpointStatus(0);
i=D12_ReadLastTransactionStatus(0);
i=D12_ReadLastTransactionStatus(1);
i=D12_ReadLastTransactionStatus(2);
i=D12_ReadLastTransactionStatus(3);
i=D12_ReadLastTransactionStatus(4);
i=D12_ReadLastTransactionStatus(5);
ENABLE;
reconnect_USB();
ENABLE;
// }
//=======================================
/* Main program loop */
while( TRUE ){
if (bEPPflags.bits.timer)
{
DISABLE;
bEPPflags.bits.timer = 0;
ENABLE;
if(bEPPflags.bits.configuration)
check_key_LED();
}
if (bEPPflags.bits.bus_reset)
{
DISABLE;
bEPPflags.bits.bus_reset = 0;
ENABLE;
// Release D12's SUSPEND pin after bus reset
// Enable 74HCT123 pulse generation before disconnect
///D12SUSPD = 1;
D12SUSPD=0;
} // if bus reset
if (bEPPflags.bits.suspend)
{
DISABLE;
bEPPflags.bits.suspend= 0;
ENABLE;
if(D12SUSPD == 1) {
D12SUSPD = 0;
P0 = 0xFF;
P1 = 0xFF;
P2 = 0xFF;
P3 = 0xFF;
D12_SetDMA(0xC3);
D12SUSPD = 1;
PCON |= 0x02;
while (1);
}
} // if suspend change
if (bEPPflags.bits.setup_packet){
DISABLE;
bEPPflags.bits.setup_packet = 0;
ENABLE;
control_handler();
//D12SUSPD = 1;
D12SUSPD=0;
} // if setup_packet
if(bEPPflags.bits.setup_dma != 0)
{
DISABLE;
bEPPflags.bits.setup_dma --;
ENABLE;
setup_dma();
} // if setup_dma
} // Main Loop
//on_exit();
//=======================================
}
//zaq
//P57命令接口-D12CI.C
//===============================================================
//===============================================================
//---------------------------------
void outportcmd(unsigned char value)
{
// unsigned char xdata *ext_address;
// ext_address=D12_COMMAND;
// *ext_address = value; // write cycle
// *((INT8 xdata *)D12_command) = val;
//*/
//unsigned char xdata *exAddress;
// exAddress = nPort;
// *exAddress = nVal;
*((unsigned char xdata *)D12_COMMAND)=value;
}
void outportdata(unsigned char value)
{
*((unsigned char xdata *)D12_DATA)=value;
}
unsigned char inportb(void)
{
return *((unsigned xdata *)D12_DATA);
}
//--------------------------
//初始化命令-D0H
void D12_SetAddressEnable(unsigned char bAddress, unsigned char bEnable)
{
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0xD0);
if(bEnable)
bAddress |= 0x80;
outportdata(bAddress);
if(bEPPflags.bits.in_isr == 0)
ENABLE;
}
void D12_SetEndpointEnable(unsigned char bEnable)
{
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0xD8);
if(bEnable)
outportdata(1);
else
outportdata(0);
if(bEPPflags.bits.in_isr == 0)
ENABLE;
}
void D12_SetMode(unsigned char bConfig, unsigned char bClkDiv)
{
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0xF3);
outportdata(bConfig);
outportdata(bClkDiv);
if(bEPPflags.bits.in_isr == 0)
ENABLE;
}
void D12_SetDMA(unsigned char bMode)
{
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0xFB);
outportdata(bMode);
if(bEPPflags.bits.in_isr == 0)
ENABLE;
}
//unsigned char D12_GetDMA(void)
//{
// outportcmd(0xFB);
// return(inportb());
//}
/*
unsigned char D12_ReadEndpointStatus(unsigned char bEndp)
{
unsigned char c;
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0x80 + bEndp);
c = inportb();
if(bEPPflags.bits.in_isr == 0)
ENABLE;
return c;
}
*/
void D12_SetEndpointStatus(unsigned char bEndp, unsigned char bStalled)
{
if(bEPPflags.bits.in_isr == 0)
DISABLE;
outportcmd(0x40 + bEndp);
outportdata(bStalled);
if(bEPPflags.bits.in_isr == 0)
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