int b1dma_detect(avmcard *card)
{
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0x0f000000); /* reset all */
mdelay(10);
b1dmaoutmeml(card->mbase+AMCC_MCSR, 0);
mdelay(42);
b1dmaoutmeml(card->mbase+AMCC_RXLEN, 0);
b1dmaoutmeml(card->mbase+AMCC_TXLEN, 0);
card->csr = 0x0;
b1dmaoutmeml(card->mbase+AMCC_INTCSR, card->csr);
if (b1dmainmeml(card->mbase+AMCC_MCSR) != 0x000000E6)
return 1;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, 0xffffffff);
b1dmaoutmeml(card->mbase+AMCC_TXPTR, 0xffffffff);
if ( b1dmainmeml(card->mbase+AMCC_RXPTR) != 0xfffffffc
|| b1dmainmeml(card->mbase+AMCC_TXPTR) != 0xfffffffc)
return 2;
b1dmaoutmeml(card->mbase+AMCC_RXPTR, 0x0);
b1dmaoutmeml(card->mbase+AMCC_TXPTR, 0x0);
if ( b1dmainmeml(card->mbase+AMCC_RXPTR) != 0x0
|| b1dmainmeml(card->mbase+AMCC_TXPTR) != 0x0)
return 3;
t1outp(card->port, 0x10, 0x00);
t1outp(card->port, 0x07, 0x00);
t1outp(card->port, 0x02, 0x02);
t1outp(card->port, 0x03, 0x02);
if ( (t1inp(card->port, 0x02) & 0xFE) != 0x02
|| t1inp(card->port, 0x3) != 0x03)
return 4;
t1outp(card->port, 0x02, 0x00);
t1outp(card->port, 0x03, 0x00);
if ( (t1inp(card->port, 0x02) & 0xFE) != 0x00
|| t1inp(card->port, 0x3) != 0x01)
return 5;
return 0;
}
static int b1dma_detect(avmcard *card)
{
b1dma_writel(card, 0, AMCC_MCSR);
mdelay(10);
b1dma_writel(card, 0x0f000000, AMCC_MCSR); /* */
mdelay(10);
b1dma_writel(card, 0, AMCC_MCSR);
mdelay(42);
b1dma_writel(card, 0, AMCC_RXLEN);
b1dma_writel(card, 0, AMCC_TXLEN);
card->csr = 0x0;
b1dma_writel(card, card->csr, AMCC_INTCSR);
if (b1dma_readl(card, AMCC_MCSR) != 0x000000E6)
return 1;
b1dma_writel(card, 0xffffffff, AMCC_RXPTR);
b1dma_writel(card, 0xffffffff, AMCC_TXPTR);
if (b1dma_readl(card, AMCC_RXPTR) != 0xfffffffc
|| b1dma_readl(card, AMCC_TXPTR) != 0xfffffffc)
return 2;
b1dma_writel(card, 0x0, AMCC_RXPTR);
b1dma_writel(card, 0x0, AMCC_TXPTR);
if (b1dma_readl(card, AMCC_RXPTR) != 0x0
|| b1dma_readl(card, AMCC_TXPTR) != 0x0)
return 3;
t1outp(card->port, 0x10, 0x00);
t1outp(card->port, 0x07, 0x00);
t1outp(card->port, 0x02, 0x02);
t1outp(card->port, 0x03, 0x02);
if ((t1inp(card->port, 0x02) & 0xFE) != 0x02
|| t1inp(card->port, 0x3) != 0x03)
return 4;
t1outp(card->port, 0x02, 0x00);
t1outp(card->port, 0x03, 0x00);
if ((t1inp(card->port, 0x02) & 0xFE) != 0x00
|| t1inp(card->port, 0x3) != 0x01)
return 5;
return 0;
}
static int b1dma_fromlink(avmcard *card, void *buf, unsigned int len)
{
unsigned long stop = jiffies + 1 * HZ; /* maximum wait time 1 sec */
unsigned char *s = (unsigned char *)buf;
while (len--) {
while ( !b1dma_rx_full(card->port)
&& time_before(jiffies, stop));
if (!b1dma_rx_full(card->port))
return -1;
*s++ = t1inp(card->port, 0x00);
}
return 0;
}
