static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
char c;
cyg_uint8 lsr;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
HAL_READ_UINT8(chan->base+CYG_DEV_LSR, lsr);
if ( (lsr & SIO_LSR_DR) != 0 ) {
HAL_READ_UINT8(chan->base+CYG_DEV_RBR, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint8 iir;
int res = 0;
CYGARC_HAL_SAVE_GP();
HAL_READ_UINT8(chan->base+PXA2X0_UART_IIR, iir);
iir &= PXA2X0_UART_IIR_ID_MASK;
*__ctrlc = 0;
if ( iir == 0x04 ) {
cyg_uint8 c, lsr;
HAL_READ_UINT8(chan->base+PXA2X0_UART_LSR, lsr);
if (lsr & PXA2X0_UART_LSR_DR) {
HAL_READ_UINT8(chan->base+PXA2X0_UART_RBR, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
}
// Acknowledge the interrupt
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc, CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
volatile cyg_uint32* pulBase = chan->pulBase;
char c;
cyg_uint32 status;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
status = pulBase[REL_Adr_uartfr / sizeof(cyg_uint32)];
if(RX_DATA(status))
{
c = (cyg_uint8)(pulBase[REL_Adr_uartdr / sizeof(cyg_uint32)] & 0xFF);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
//===========================================================================
// Serial channel ISR
//===========================================================================
static int cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint8 c;
cyg_uint8 iir;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT32(chan->base + CYGARC_HAL_LPC24XX_REG_UxIIR, iir);
if((iir & (CYGARC_HAL_LPC24XX_REG_UxIIR_IIR0 |
CYGARC_HAL_LPC24XX_REG_UxIIR_IIR1 |
CYGARC_HAL_LPC24XX_REG_UxIIR_IIR2))
== CYGARC_HAL_LPC24XX_REG_UxIIR_IIR2)
{
// Rx data available or character timeout
// Read data in order to clear interrupt
HAL_READ_UINT32(chan->base + CYGARC_HAL_LPC24XX_REG_UxRBR, c);
if( cyg_hal_is_break( &c , 1 ) ) *__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
cyg_uint16 status;
cyg_uint16 control;
cyg_uint16 * base = ((channel_data_t *)__ch_data)->base;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT16(base+CYG_DEV_SERIAL_RS232_SCSR, status);
HAL_READ_UINT16(base+CYG_DEV_SERIAL_RS232_SCCR1, control);
if((status & SCSR_RDRF) && (control & SCCR1_RIE))
{ // Only if the interrupt was caused by the channel
cyg_uint8 c;
c = cyg_hal_plf_serial_getc(__ch_data);
if(cyg_hal_is_break(&c, 1))
*__ctrlc = 1;
HAL_INTERRUPT_ACKNOWLEDGE(((channel_data_t *)__ch_data)->imb3_vector);
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int CYGOPT_HAL_KINETIS_DIAG_FLASH_SECTION_ATTR
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
channel_data_t* chan = (channel_data_t*)__ch_data;
CYG_ADDRESS uart_p = (CYG_ADDRESS) chan->base;
cyg_uint8 uart_s1;
int res = 0;
cyg_uint8 ch_in;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT8(uart_p + CYGHWR_DEV_FREESCALE_UART_S1, uart_s1);
if (uart_s1 & CYGHWR_DEV_FREESCALE_UART_S1_RDRF) {
HAL_READ_UINT8(uart_p + CYGHWR_DEV_FREESCALE_UART_D, ch_in);
if( cyg_hal_is_break( (char *) &ch_in , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return res;
}
static void
cyg_hal_plf_serial_isr_handler(channel_data_t *chan,
int event, int len)
{
int res;
char ch;
*chan->ctrlc = 0;
switch (event) {
case XUN_EVENT_RECV_ERROR:
case XUN_EVENT_RECV_TIMEOUT:
case XUN_EVENT_MODEM:
diag_printf("%s.%d - chan: %p, event: %d\n", __FUNCTION__, __LINE__, chan, event);
break;
case XUN_EVENT_RECV_DATA:
res = XUartNs550_Recv(&chan->dev, &ch, 1);
if (cyg_hal_is_break(&ch , 1))
*chan->ctrlc = 1;
break;
case XUN_EVENT_SENT_DATA:
return;
default:
break;
}
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
char c;
cyg_uint32 status;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
status = GET_STATUS(chan->base);
if ( RX_DATA(status) ) {
c = GET_CHAR(chan->base);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int cyg_hal_plf_duart_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
channel_data_t* chan = (channel_data_t*)__ch_data;
uart_width _iir;
int res = 0;
CYGARC_HAL_SAVE_GP();
HAL_READ_UINT_UART(chan->base+CYG_DEV_SERIAL_IIR, _iir);
_iir &= SIO_IIR_ID_MASK;
*__ctrlc = 0;
if ( ISR_Rx == _iir ) {
uart_width c, lsr;
cyg_uint8 c8;
HAL_READ_UINT_UART(chan->base+CYG_DEV_SERIAL_LSR, lsr);
if (lsr & SIO_LSR_DR) {
HAL_READ_UINT_UART(chan->base+CYG_DEV_SERIAL_RHR, c);
c8 = (cyg_uint8) (c & 0x00FF);
if (cyg_hal_is_break( &c8 , 1 ))
*__ctrlc = 1;
}
// Acknowledge the interrupt
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_screen_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
char c;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
if ( KeyboardTest() ) {
c = KBPending;
KBPending = 0xFF;
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc, CYG_ADDRWORD vector, CYG_ADDRWORD __data)
{
int res = 0;
cyg_uint32 iir;
cyg_uint8 c;
channel_data_t* chan;
CYGARC_HAL_SAVE_GP();
// Some of the diagnostic print code calls through here with no idea what the ch_data is.
// Go ahead and assume it is channels[0].
if (__ch_data == 0)
__ch_data = (void*)&channels[0];
chan = (channel_data_t*)__ch_data;
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
iir = RA_UART_REG(chan->base, UART_IIR) & UART_IIR_ID_MASK;
*__ctrlc = 0;
if ((iir == UART_IIR_RX_AVIL) || (iir == UART_IIR_RX_TIMEOUT)) {
c = RA_UART_REG(chan->base, UART_IIR) & 0xFF;
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint8 c;
cyg_uint8 stat;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT32(chan->base+CYGARC_HAL_LPC2XXX_REG_UxLSR, stat);
if ( (stat & CYGARC_HAL_LPC2XXX_REG_UxLSR_RDR) != 0 ) {
HAL_READ_UINT32(chan->base+CYGARC_HAL_LPC2XXX_REG_UxRBR, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_sci_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
cyg_uint8 c, sr;
cyg_uint8* base = ((channel_data_t*)__ch_data)->base;
int res = 0;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT8(base+_REG_SCSSR, sr);
if (sr & CYGARC_REG_SCI_SCSSR_ORER) {
// Serial RX overrun. Clear error and hope protocol recovers.
HAL_WRITE_UINT8(base+_REG_SCSSR,
CYGARC_REG_SCI_SCSSR_CLEARMASK & ~CYGARC_REG_SCI_SCSSR_ORER);
res = CYG_ISR_HANDLED;
} else if (sr & CYGARC_REG_SCI_SCSSR_RDRF) {
// Received character
HAL_READ_UINT8(base+_REG_SCRDR, c);
// Clear buffer full flag.
HAL_WRITE_UINT8(base+_REG_SCSSR,
CYGARC_REG_SCI_SCSSR_CLEARMASK & ~CYGARC_REG_SCI_SCSSR_RDRF);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
cyg_uint8 eir, c;
channel_data_t* chan = (channel_data_t*)__ch_data;
CYGARC_HAL_SAVE_GP();
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
HAL_READ_UINT8(chan->base+CYG_DEVICE_BK0_EIR, eir);
*__ctrlc = 0;
if( (eir & CYG_DEVICE_BK0_EIR_mask) == CYG_DEVICE_BK0_EIR_IRQ_RX ) {
HAL_READ_UINT8(chan->base+CYG_DEVICE_BK0_RXD, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint32 c;
cyg_uint8 ch;
cyg_uint32 stat;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT32(chan->base+AT91_US_CSR, stat);
if ( (stat & AT91_US_CSR_RxRDY) != 0 ) {
HAL_READ_UINT32(chan->base+AT91_US_RHR, c);
ch = (cyg_uint8)(c & 0xff);
if( cyg_hal_is_break( &ch , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint8* base = ((channel_data_t*)__ch_data)->base;
char c;
cyg_uint32 lsr, _c;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
HAL_READ_UINT32(base+AAEC_UART_STATUS, lsr);
if ( (lsr & AAEC_UART_STATUS_RxFE) != 0 ) {
HAL_READ_UINT32(base+AAEC_UART_DATA, _c);
c = (char)_c;
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
channel_data_t* chan = (channel_data_t*)__ch_data;
CYG_ADDRESS esci_base = (CYG_ADDRESS) chan->base;
cyg_uint16 esci_sr;
int res = 0;
cyg_uint8 ch_in;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT16(FREESCALE_ESCI_SR(esci_base), esci_sr);
if (esci_sr & FREESCALE_ESCI_SR_RDRF) {
HAL_READ_UINT8(FREESCALE_ESCI_DRL(esci_base), ch_in);
if( cyg_hal_is_break( (char *) &ch_in , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
HAL_WRITE_UINT16(FREESCALE_ESCI_SR(esci_base), FREESCALE_ESCI_SR_RDRF);
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_scif_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
cyg_uint8 c;
cyg_uint16 fdr, sr;
cyg_uint8* base = ((channel_data_t*)__ch_data)->base;
int res = 0;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
HAL_READ_UINT16(base+_REG_SCFDR, fdr);
if ((fdr & CYGARC_REG_SCIF_SCFDR_RCOUNT_MASK) != 0) {
HAL_READ_UINT8(base+_REG_SCFRDR, c);
// Clear buffer full flag (read back first).
HAL_READ_UINT16(base+_REG_SCSSR, sr);
HAL_WRITE_UINT16(base+_REG_SCSSR,
CYGARC_REG_SCIF_SCSSR_CLEARMASK & ~CYGARC_REG_SCIF_SCSSR_RDF);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
cyg_uint8 _iir, c;
channel_data_t* chan;
CYGARC_HAL_SAVE_GP();
// Some of the diagnostic print code calls through here with no idea what the ch_data is.
// Go ahead and assume it is channels[0].
if (__ch_data == 0)
__ch_data = (void*)&channels[0];
chan = (channel_data_t*)__ch_data;
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
HAL_READ_UINT8(chan->base + SER_16550_IIR, _iir);
_iir &= SIO_IIR_ID_MASK;
*__ctrlc = 0;
if ((_iir == ISR_Rx_Avail) || (_iir == ISR_Rx_Char_Timeout)) {
HAL_READ_UINT8(chan->base + SER_16550_RBR, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
char c;
cyg_uint32 lsr;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
HAL_READ_UINT32(chan->base+OFS_UFSTAT, lsr);
if (lsr & 0x0f)
{
HAL_READ_UINT8(chan->base+OFS_URXH, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static void gdb_diag_write_char(char c)
{
static char line[100];
static int pos = 0;
// No need to send CRs
if( c == '\r' ) return;
line[pos++] = c;
if( c == '\n' || pos == sizeof(line) )
{
while (1)
{
static char hex[] = "0123456789ABCDEF";
cyg_uint8 csum = 0;
int i;
hal_diag_write_char_serial('$');
hal_diag_write_char_serial('O');
csum += 'O';
for( i = 0; i < pos; i++ )
{
char ch = line[i];
char h = hex[(ch>>4)&0xF];
char l = hex[ch&0xF];
hal_diag_write_char_serial(h);
hal_diag_write_char_serial(l);
csum += h;
csum += l;
}
hal_diag_write_char_serial('#');
hal_diag_write_char_serial(hex[(csum>>4)&0xF]);
hal_diag_write_char_serial(hex[csum&0xF]);
{
char c1;
hal_diag_read_char_serial( &c1 );
if( c1 == '+' ) break;
if( cyg_hal_is_break( &c1, 1 ) )
cyg_hal_user_break( NULL );
}
}
pos = 0;
}
}
static int
cyg_hal_sccx_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
EPPC *eppc = eppc_base();
volatile struct cp_bufdesc *bd;
struct port_info *info = (struct port_info *)__ch_data;
volatile struct scc_regs *regs = (volatile struct scc_regs *)((char *)eppc + info->regs);
volatile struct uart_pram *uart_pram = (volatile struct uart_pram *)((char *)eppc + info->pram);
char ch;
int res = 0;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
if (regs->scc_scce & QUICC_SMCE_RX) {
regs->scc_scce = QUICC_SMCE_RX;
/* rx buffer descriptors */
bd = info->next_rxbd;
if ((bd->ctrl & QUICC_BD_CTL_Ready) == 0) {
// then there be a character waiting
ch = bd->buffer[0];
bd->length = 1;
bd->ctrl |= QUICC_BD_CTL_Ready | QUICC_BD_CTL_Int;
if (bd->ctrl & QUICC_BD_CTL_Wrap) {
bd = (struct cp_bufdesc *)((char *)eppc + uart_pram->rbase);
} else {
bd++;
}
info->next_rxbd = bd;
if( cyg_hal_is_break( &ch , 1 ) )
*__ctrlc = 1;
}
// Interrupt handled. Acknowledge it.
HAL_INTERRUPT_ACKNOWLEDGE(info->intnum);
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
volatile struct _gps4020_uart *uart = ((channel_data_t*)__ch_data)->base;
char c;
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
if ((uart->status & SSR_RxFull) != 0) {
c = uart->TxRx;
if (cyg_hal_is_break(&c, 1))
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
return res;
}
cyg_uint32 hal_ctrlc_isr(CYG_ADDRWORD vector, CYG_ADDRWORD data)
{
char c;
cyg_uint16 sr;
HAL_INTERRUPT_ACKNOWLEDGE( CYGHWR_HAL_GDB_PORT_VECTOR );
HAL_READ_UINT16( SERIAL_SR, sr );
if( sr & SIO_LSTAT_RRDY )
{
HAL_READ_UINT8( SERIAL_RXR, c);
if( cyg_hal_is_break( &c , 1 ) )
cyg_hal_user_break( (CYG_ADDRWORD *)hal_saved_interrupt_state );
}
return 1;
}
static int
cyg_hal_plf_smcx_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
struct port_info *info = (struct port_info *)__ch_data;
volatile struct smc_regs_8260 *regs = (volatile struct smc_regs_8260*)((char *)IMM + info->regs);
t_Smc_Pram *pram = (t_Smc_Pram *)((char *)IMM + info->pram);
char ch;
int res = 0;
volatile struct cp_bufdesc *bd;
*__ctrlc = 0;
if (regs->smc_smce & SMCE_Rx) {
regs->smc_smce = SMCE_Rx;
/* rx buffer descriptors */
bd = info->next_rxbd;
if ((bd->ctrl & _BD_CTL_Ready) == 0) {
// then there be a character waiting
ch = bd->buffer[0];
bd->length = 1;
bd->ctrl |= _BD_CTL_Ready | _BD_CTL_Int;
if (bd->ctrl & _BD_CTL_Wrap) {
bd = (struct cp_bufdesc *)((char *)IMM + pram->rbase);
} else {
bd++;
}
info->next_rxbd = bd;
if( cyg_hal_is_break( &ch , 1 ) )
*__ctrlc = 1;
}
// Interrupt handled. Acknowledge it.
HAL_INTERRUPT_ACKNOWLEDGE(info->intnum);
res = CYG_ISR_HANDLED;
}
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
cyg_uint8 _iir, c;
channel_data_t* chan;
CYGARC_HAL_SAVE_GP();
// Some of the diagnostic print code calls through here with no idea what the ch_data is.
// Go ahead and assume it is channels[0].
if (__ch_data == 0)
__ch_data = (void*)&channels[0];
chan = (channel_data_t*)__ch_data;
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
HAL_READ_UINT8(chan->base + SER_16550_IIR, _iir);
_iir &= SIO_IIR_ID_MASK;
*__ctrlc = 0;
if ((_iir == ISR_Rx_Avail) || (_iir == ISR_Rx_Char_Timeout)) {
HAL_READ_UINT8(chan->base + SER_16550_RBR, c);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
/* sfurman - Hmmm. Under or1ksim, we sometimes receive interrupts
when no characters are in the FIFO. I think this is a SW bug
and not a problem w/ or1ksim, but until the problem is solved,
we always consume the interrupt */
res = CYG_ISR_HANDLED;
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
volatile unsigned char *RxDATA = (volatile unsigned char *)V850_REG_RXB0;
cyg_uint8 c;
int res = 0;
CYGARC_HAL_SAVE_GP();
c = (char)*RxDATA;
*__ctrlc = 0;
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
cyg_drv_interrupt_acknowledge(CYGNUM_HAL_VECTOR_INTCSI1);
res = CYG_ISR_HANDLED;
CYGARC_HAL_RESTORE_GP();
return res;
}
static int
hal_a2fxxx_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
channel_data_t* chan = (channel_data_t*)__ch_data;
cyg_uint8 ch;
CYGARC_HAL_SAVE_GP();
*__ctrlc = 0;
if( hal_a2fxxx_serial_getc_nonblock(__ch_data, &ch) )
{
if( cyg_hal_is_break( (char *)&ch , 1 ) )
*__ctrlc = 1;
}
HAL_INTERRUPT_ACKNOWLEDGE(chan->isr_vector);
CYGARC_HAL_RESTORE_GP();
return 1;
}
static int
cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc,
CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
{
int res = 0;
channel_data_t* chan = (channel_data_t*)__ch_data;
char c;
CYGARC_HAL_SAVE_GP();
cyg_drv_interrupt_acknowledge(chan->isr_vector);
*__ctrlc = 0;
if ((chan->base->stat & SYSFLG1_URXFE1) == 0) {
c = (cyg_uint8)(chan->base->data.read & 0xFF);
if( cyg_hal_is_break( &c , 1 ) )
*__ctrlc = 1;
res = CYG_ISR_HANDLED;
}
CYGARC_HAL_RESTORE_GP();
return res;
}
static void
cyg_hal_diag_mangler_gdb_flush(void* __ch_data)
{
CYG_INTERRUPT_STATE old;
hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_DEBUG_PROCS();
#if CYGNUM_HAL_DEBUG_GDB_PROTOCOL_RETRIES != 0
int tries = CYGNUM_HAL_DEBUG_GDB_PROTOCOL_RETRIES;
#endif
// Nothing to do if mangler buffer is empty.
if (__mangler_pos == 0)
return;
// Disable interrupts. This prevents GDB trying to interrupt us
// while we are in the middle of sending a packet. The serial
// receive interrupt will be seen when we re-enable interrupts
// later.
#if defined(CYG_HAL_STARTUP_ROM) \
|| !defined(CYG_HAL_GDB_ENTER_CRITICAL_IO_REGION)
HAL_DISABLE_INTERRUPTS(old);
#else
CYG_HAL_GDB_ENTER_CRITICAL_IO_REGION(old);
#endif
#if CYGNUM_HAL_DEBUG_GDB_PROTOCOL_RETRIES != 0
// Only wait 500ms for data to arrive - avoid "stuck" connections
CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SET_TIMEOUT, CYGNUM_HAL_DEBUG_GDB_PROTOCOL_TIMEOUT);
#endif
while(1)
{
static const char hex[] = "0123456789ABCDEF";
cyg_uint8 csum = 0;
char c1;
int i;
CYGACC_COMM_IF_PUTC(*__chan, '$');
CYGACC_COMM_IF_PUTC(*__chan, 'O');
csum += 'O';
for( i = 0; i < __mangler_pos; i++ )
{
char ch = __mangler_line[i];
char h = hex[(ch>>4)&0xF];
char l = hex[ch&0xF];
CYGACC_COMM_IF_PUTC(*__chan, h);
CYGACC_COMM_IF_PUTC(*__chan, l);
csum += h;
csum += l;
}
CYGACC_COMM_IF_PUTC(*__chan, '#');
CYGACC_COMM_IF_PUTC(*__chan, hex[(csum>>4)&0xF]);
CYGACC_COMM_IF_PUTC(*__chan, hex[csum&0xF]);
nak:
#if CYGNUM_HAL_DEBUG_GDB_PROTOCOL_RETRIES != 0
if (CYGACC_COMM_IF_GETC_TIMEOUT(*__chan, &c1) == 0) {
c1 = '-';
if (tries && (--tries == 0)) c1 = '+';
}
#else
c1 = CYGACC_COMM_IF_GETC(*__chan);
#endif
if( c1 == '+' ) break;
if( cyg_hal_is_break( &c1 , 1 ) ) {
// Caller's responsibility to react on this.
CYGACC_CALL_IF_CONSOLE_INTERRUPT_FLAG_SET(1);
break;
}
if( c1 != '-' ) goto nak;
}
__mangler_pos = 0;
// And re-enable interrupts
#if defined(CYG_HAL_STARTUP_ROM) \
|| !defined(CYG_HAL_GDB_ENTER_CRITICAL_IO_REGION)
HAL_RESTORE_INTERRUPTS(old);
#else
CYG_HAL_GDB_LEAVE_CRITICAL_IO_REGION(old);
#endif
}
