void rtl_console_init(void)
{
int i;
unsigned long dl;
unsigned long dll;
unsigned long dlm;
rtl_outl( UART_LCR,0x03000000); //Line Control Register 8,n,1
rtl_outl( UART_FCR,0xc7000000); //FIFO Ccontrol Register
rtl_outl( UART_IER,0x00000000);
dl = (SYS_CLK_RATE /16)/BAUD_RATE-1;
*(volatile unsigned long *)(0xa1000000) = dl ;
dll = dl & 0xff;
dlm = dl / 0x100;
rtl_outl( UART_LCR,0x83000000); //Divisor latch access bit=1
rtl_outl( UART_DLL,dll*0x1000000);
rtl_outl( UART_DLM,dlm*0x1000000);
rtl_outl( UART_LCR,0x83000000& 0x7fffffff); //Divisor latch access bit=0
//rtl_outl( UART_THR,0x41000000);
// dprintf("\nUART1 output test ok\n");
//prom_printf("\ntest value = %x \n", dl);
}
size_t rtl8139_send(struct network_dev *dev, uint8_t *_buf, size_t length)
{
struct rtl8139 *rtl = dev->device;
void* tx_buffer = (void *)(rtl->tx_buffers + 8192*rtl->tx_cur);
kmemset(tx_buffer, 0, (length <60) ? 60 : length);
kmemcpy(tx_buffer, _buf, length);
if(length < 60)
length = 60;
rtl_outl(rtl, 0x20 + rtl->tx_cur*4, V2P(tx_buffer));
rtl_outl(rtl, 0x10 + rtl->tx_cur*4, length | (48 << 16));
rtl->tx_cur++;
rtl->tx_cur %= 4;
return length;
}
void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
//unsigned int i,j;
unsigned char status;
static int light=0;
// prom_printf("in timer interrupt\n");
prom_printf("IRQ=%x\n",irq);
if (irq != 8)
{
prom_printf("in timer irq, irq!=0\n");
for(;;);
}
status = rtl_inl(TCIR);
if (status & 0x40000000)
{
((volatile timer_t *)(dev_id))->timer0tick= ((volatile timer_t *)(dev_id))->timer0tick + 1;
#if (WATCHDOG_TEST == 1)
/*Cyrus Tsai*/
/*this should be longer */
if (Jiffies <=0x19)
{
rtl_outl(WDTCNR,0x100);
}
#endif
}
if (status & 0x20)
{
((volatile timer_t *)(dev_id))->timer1tick= ((volatile timer_t *)(dev_id))->timer1tick + 1;
//serial_outc('T');
//wlan_tx_list_generate(0xFF);
flush_cache();
//twiddle();
Jiffies++;
if(Jiffies>1000)
{
prom_printf("----\n");
Jiffies=0;
}
}
if (status & 0x40)
((volatile timer_t *)(dev_id))->timer2tick= ((volatile timer_t *)(dev_id))->timer2tick + 1;
}
void rtl8139_start(struct rtl8139 *rtl)
{
rtl->tx_cur = 0;
rtl_outb(rtl, 0x37, 0x10);
while((rtl_inb(rtl, 0x37) & 0x10) != 0);
kmemset(rtl->rx_buffer, 0, (8192*8)+16+1500);
rtl_outl(rtl, 0x30,(uintptr_t)V2P(rtl->rx_buffer));
rtl_outb(rtl, 0x37, 0xc);
for(int i=0; i < 4; i++)
{
rtl_outl(rtl, 0x20 + i*4, (uintptr_t)V2P(rtl->tx_buffers) + i*(8192 +16+1500));
}
//TODO: need to register pci IRQs instead of doing it directly
//interrupt_register(32 + rtl->pci_hdr->int_line, &rtl_handler);
pci_register_irq(rtl->pci, &rtl_handler, rtl);
rtl_outl(rtl, 0x44, (1 << 7) | 8| (1 << 1));
rtl_outw(rtl, 0x3c, 0x5 );
for(int i = 0; i < 6; i ++)
rtl->mac[i] = rtl_inb(rtl, i);
for(int i = 0; i < 100; i++)
{
/* uint16_t isr = rtl_inw(rtl, ISR);
if(isr & 0x20)
{
rtl_outw(rtl, ISR, 0x20);
printf("isr %x\n",isr);
break;
}*/
}
}
void rtl8139_enable_timer(struct rtl8139 *rtl)
{
rtl_outl(rtl, 0x54, 32768);//set rate ~1ms
rtl_outl(rtl, 0x48, 0); //set timer count to 0
}
