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receive status register support (aka GRUB netboot fix) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@845 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2004-05-22 16:52:29 +00:00
parent 7bf5be70f7
commit 8d6c7eb896
1 changed files with 10 additions and 2 deletions
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12
hw/ne2000.c
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@ -118,6 +118,7 @@ typedef struct NE2000State {
uint16_t tcnt;
uint16_t rcnt;
uint32_t rsar;
uint8_t rsr;
uint8_t isr;
uint8_t dcfg;
uint8_t imr;
@ -212,7 +213,11 @@ static void ne2000_receive(void *opaque, const uint8_t *buf, int size)
next -= (s->stop - s->start);
/* prepare packet header */
p = s->mem + index;
p[0] = ENRSR_RXOK; /* receive status */
s->rsr = ENRSR_RXOK; /* receive status */
/* XXX: check this */
if (buf[0] & 0x01)
s->rsr |= ENRSR_PHY;
p[0] = s->rsr;
p[1] = next >> 8;
p[2] = total_len;
p[3] = total_len >> 8;
@ -232,7 +237,7 @@ static void ne2000_receive(void *opaque, const uint8_t *buf, int size)
size -= len;
}
s->curpag = next >> 8;
/* now we can signal we have receive something */
s->isr |= ENISR_RX;
ne2000_update_irq(s);
@ -360,6 +365,9 @@ static uint32_t ne2000_ioport_read(void *opaque, uint32_t addr)
case EN1_MULT ... EN1_MULT + 7:
ret = s->mult[offset - EN1_MULT];
break;
case EN0_RSR:
ret = s->rsr;
break;
default:
ret = 0x00;
break;