/* Start running. Must have called usb_open (above) first */
int sa1100_usb_start( void ) {
usbd_info.state = USB_STATE_SUSPENDED;
/* Enable UDC and mask everything */
UDC_write(Ser0UDCCR , 0xFC);
/* clear stall - receiver seems to start stalled? 19Jan01ww */
/* also clear other stuff just to be thurough 22Feb01ww */
UDC_clear(Ser0UDCCS1, UDCCS1_FST | UDCCS1_RPE | UDCCS1_RPC );
UDC_clear(Ser0UDCCS2, UDCCS2_FST | UDCCS2_TPE | UDCCS2_TPC );
rx_pktsize = 8; // OJO
tx_pktsize = 1; // OJO
/* flush DMA and fire through some -EAGAINs */
ep1_init( usbd_info.dmach_rx );
ep2_init( usbd_info.dmach_tx );
/* clear all top-level sources */
Ser0UDCSR = UDCSR_RSTIR | UDCSR_RESIR | UDCSR_EIR | UDCSR_RIR | UDCSR_TIR | UDCSR_SUSIR ;
/* EXERIMENT - a short line in the spec says toggling this
..bit diddles the internal state machine in the udc to
..expect a suspend */
Ser0UDCCR |= UDCCR_RESIM;
/* END EXPERIMENT 10Feb01ww */
UDC_write( Ser0UDCCR, UDCCR_SUSIM | UDCCR_TIM);
/* clear all top-level sources */
Ser0UDCSR = UDCSR_RSTIR | UDCSR_RESIR | UDCSR_EIR | UDCSR_RIR | UDCSR_TIR | UDCSR_SUSIR ;
return 0;
}
/* Start running. Must have called usb_open (above) first */
int
s3c2410_usb_start( void )
{
unsigned long tmp;
LOG("\n");
if ( usbd_info.client_name == NULL ) {
printk( "%s%s - no client registered\n",
pszMe, __FUNCTION__ );
return -EPERM;
}
/* start UDC internal machinery running */
udelay( 100 );
/* clear stall - receiver seems to start stalled? */
UD_INDEX = UD_INDEX_EP2; // EP2 input
tmp = UD_ICSR1;
tmp &= ~(UD_ICSR1_SENTSTL | UD_ICSR1_FFLUSH | UD_ICSR1_UNDRUN);
tmp &= ~(UD_ICSR1_PKTRDY | UD_ICSR1_SENDSTL);
UD_ICSR1 = tmp;
UD_INDEX = UD_INDEX_EP1; // EP1 output
tmp = UD_OCSR1;
tmp &= ~(UD_OCSR1_SENTSTL | UD_OCSR1_FFLUSH | UD_OCSR1_OVRRUN);
tmp &= ~(UD_OCSR1_PKTRDY | UD_OCSR1_SENDSTL);
UD_OCSR1 = tmp;
/* flush DMA and fire through some -EAGAINs */
ep2_init( usbd_info.dmach_tx );
ep1_init( usbd_info.dmach_rx );
/* clear all top-level sources */
UD_INT = UD_INT_EP0 | UD_INT_EP1 | UD_INT_EP2;
UD_USBINT = UD_USBINT_RESET | UD_USBINT_RESUM | UD_USBINT_SUSPND;
printk( "%sStarted for %s\n", pszMe, usbd_info.client_name );
return 0;
}
