static int
ed_isa_probe_Novell(device_t dev)
{
struct ed_softc *sc = device_get_softc(dev);
int flags = device_get_flags(dev);
int err;
err = ed_probe_Novell(dev, 0, flags);
if (err)
return err;
ed_Novell_read_mac(sc);
/*
* Final sanity check for Gateway Ethernet cards before
* believing that they really are Gateway AT.
* XXX I think this is stale.
*/
if ((ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) &&
(sc->enaddr[2] == 0x86)) {
sc->type_str = "Gateway AT";
}
return (0);
}
/*
* Probe and vendor-specific initialization routine for NE1000/2000 boards
*/
int
ed_probe_Novell_generic(device_t dev, int flags)
{
struct ed_softc *sc = device_get_softc(dev);
u_int memsize;
int error;
u_char tmp;
static char test_pattern[32] = "THIS is A memory TEST pattern";
char test_buffer[32];
/* Reset the board */
if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
ed_asic_outb(sc, ED_NOVELL_RESET, 0);
DELAY(200);
}
tmp = ed_asic_inb(sc, ED_NOVELL_RESET);
/*
* I don't know if this is necessary; probably cruft leftover from
* Clarkson packet driver code. Doesn't do a thing on the boards I've
* tested. -DG
*/
ed_asic_outb(sc, ED_NOVELL_RESET, tmp);
DELAY(5000);
/*
* This is needed because some NE clones apparently don't reset the
* NIC properly (or the NIC chip doesn't reset fully on power-up) XXX
* - this makes the probe invasive! ...Done against my better
* judgement. -DLG
*/
ed_nic_outb(sc, ED_P0_CR, ED_CR_RD2 | ED_CR_STP);
DELAY(5000);
/* Make sure that we really have an 8390 based board */
if (!ed_probe_generic8390(sc))
return (ENXIO);
sc->vendor = ED_VENDOR_NOVELL;
sc->mem_shared = 0;
sc->cr_proto = ED_CR_RD2;
/*
* Test the ability to read and write to the NIC memory. This has the
* side affect of determining if this is an NE1000 or an NE2000.
*/
/*
* This prevents packets from being stored in the NIC memory when the
* readmem routine turns on the start bit in the CR.
*/
ed_nic_outb(sc, ED_P0_RCR, ED_RCR_MON);
/* Temporarily initialize DCR for byte operations */
ed_nic_outb(sc, ED_P0_DCR, ED_DCR_FT1 | ED_DCR_LS);
ed_nic_outb(sc, ED_P0_PSTART, 8192 / ED_PAGE_SIZE);
ed_nic_outb(sc, ED_P0_PSTOP, 16384 / ED_PAGE_SIZE);
/*
* Some devices identify themselves. Some of those devices
* can't handle being probed, so we allow forcing a mode. If
* these flags are set, force it, otherwise probe.
*/
if (flags & ED_FLAGS_FORCE_8BIT_MODE) {
sc->isa16bit = 0;
sc->type = ED_TYPE_NE1000;
sc->type_str = "NE1000";
} else if (flags & ED_FLAGS_FORCE_16BIT_MODE) {
sc->isa16bit = 1;
sc->type = ED_TYPE_NE2000;
sc->type_str = "NE2000";
ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
ed_nic_outb(sc, ED_P0_PSTART, 16384 / ED_PAGE_SIZE);
ed_nic_outb(sc, ED_P0_PSTOP, 32768 / ED_PAGE_SIZE);
} else {
/*
* Write a test pattern in byte mode. If this fails, then there
* probably isn't any memory at 8k - which likely means that the board
* is an NE2000.
*/
ed_pio_writemem(sc, test_pattern, 8192, sizeof(test_pattern));
ed_pio_readmem(sc, 8192, test_buffer, sizeof(test_pattern));
if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
sc->type = ED_TYPE_NE1000;
sc->type_str = "NE1000";
sc->isa16bit = 0;
} else {
/* Not an NE1000 - try NE2000 */
sc->isa16bit = 1;
ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
ed_nic_outb(sc, ED_P0_PSTART, 16384 / ED_PAGE_SIZE);
ed_nic_outb(sc, ED_P0_PSTOP, 32768 / ED_PAGE_SIZE);
/*
* Write a test pattern in word mode. If this also fails, then
* we don't know what this board is.
*/
ed_pio_writemem(sc, test_pattern, 16384, sizeof(test_pattern));
ed_pio_readmem(sc, 16384, test_buffer, sizeof(test_pattern));
if (bcmp(test_pattern, test_buffer, sizeof(test_pattern)) == 0) {
sc->type = ED_TYPE_NE2000;
sc->type_str = "NE2000";
} else {
return (ENXIO);
}
}
}
sc->chip_type = ED_CHIP_TYPE_DP8390;
/* 8k of memory plus an additional 8k if 16bit */
memsize = 8192 + sc->isa16bit * 8192;
sc->mem_size = memsize;
/* NIC memory doesn't start at zero on an NE board */
/* The start address is tied to the bus width */
sc->mem_start = 8192 + sc->isa16bit * 8192;
sc->mem_end = sc->mem_start + memsize;
sc->tx_page_start = memsize / ED_PAGE_SIZE;
if (ED_FLAGS_GETTYPE(flags) == ED_FLAGS_GWETHER) {
error = ed_probe_gwether(dev);
if (error)
return (error);
}
/*
* Use one xmit buffer if < 16k, two buffers otherwise (if not told
* otherwise).
*/
if ((memsize < 16384) || (flags & ED_FLAGS_NO_MULTI_BUFFERING))
sc->txb_cnt = 1;
else
sc->txb_cnt = 2;
sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE;
sc->rec_page_stop = sc->tx_page_start + memsize / ED_PAGE_SIZE;
sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
/* clear any pending interrupts that might have occurred above */
ed_nic_outb(sc, ED_P0_ISR, 0xff);
sc->sc_write_mbufs = ed_pio_write_mbufs;
return (0);
}
