f689fa27ba
to help a future port of the driver to ARM. Approved by: imp (mentor)
1244 lines
28 KiB
C
1244 lines
28 KiB
C
/*-
|
|
* Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice unmodified, this list of conditions, and the following
|
|
* disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*
|
|
*
|
|
* Device driver for Crystal Semiconductor CS8920 based ethernet
|
|
* adapters. By Maxim Bolotin and Oleg Sharoiko, 27-April-1997
|
|
*/
|
|
|
|
/*
|
|
#define CS_DEBUG
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/mbuf.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/sockio.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/syslog.h>
|
|
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
|
|
#include <net/if.h>
|
|
#include <net/if_arp.h>
|
|
#include <net/if_dl.h>
|
|
#include <net/if_media.h>
|
|
#include <net/if_types.h>
|
|
#include <net/ethernet.h>
|
|
#include <net/bpf.h>
|
|
|
|
#include <dev/cs/if_csvar.h>
|
|
#include <dev/cs/if_csreg.h>
|
|
|
|
#ifdef CS_USE_64K_DMA
|
|
#define CS_DMA_BUFFER_SIZE 65536
|
|
#else
|
|
#define CS_DMA_BUFFER_SIZE 16384
|
|
#endif
|
|
|
|
static void cs_init(void *);
|
|
static void cs_init_locked(struct cs_softc *);
|
|
static int cs_ioctl(struct ifnet *, u_long, caddr_t);
|
|
static void cs_start(struct ifnet *);
|
|
static void cs_start_locked(struct ifnet *);
|
|
static void cs_stop(struct cs_softc *);
|
|
static void cs_reset(struct cs_softc *);
|
|
static void cs_watchdog(void *);
|
|
|
|
static int cs_mediachange(struct ifnet *);
|
|
static void cs_mediastatus(struct ifnet *, struct ifmediareq *);
|
|
static int cs_mediaset(struct cs_softc *, int);
|
|
|
|
static void cs_write_mbufs(struct cs_softc*, struct mbuf*);
|
|
static void cs_xmit_buf(struct cs_softc*);
|
|
static int cs_get_packet(struct cs_softc*);
|
|
static void cs_setmode(struct cs_softc*);
|
|
|
|
static int get_eeprom_data(struct cs_softc *sc, int, int, uint16_t *);
|
|
static int get_eeprom_cksum(int, int, uint16_t *);
|
|
static int wait_eeprom_ready( struct cs_softc *);
|
|
static void control_dc_dc( struct cs_softc *, int );
|
|
static int enable_tp(struct cs_softc *);
|
|
static int enable_aui(struct cs_softc *);
|
|
static int enable_bnc(struct cs_softc *);
|
|
static int cs_duplex_auto(struct cs_softc *);
|
|
|
|
devclass_t cs_devclass;
|
|
driver_intr_t csintr;
|
|
|
|
/* sysctl vars */
|
|
SYSCTL_NODE(_hw, OID_AUTO, cs, CTLFLAG_RD, 0, "cs device parameters");
|
|
|
|
int cs_ignore_cksum_failure = 0;
|
|
TUNABLE_INT("hw.cs.ignore_checksum_failure", &cs_ignore_cksum_failure);
|
|
SYSCTL_INT(_hw_cs, OID_AUTO, ignore_checksum_failure, CTLFLAG_RW,
|
|
&cs_ignore_cksum_failure, 0,
|
|
"ignore checksum errors in cs card EEPROM");
|
|
|
|
static int cs_recv_delay = 570;
|
|
TUNABLE_INT("hw.cs.recv_delay", &cs_recv_delay);
|
|
SYSCTL_INT(_hw_cs, OID_AUTO, recv_delay, CTLFLAG_RW, &cs_recv_delay, 570, "");
|
|
|
|
static int cs8900_eeint2irq[16] = {
|
|
10, 11, 12, 5, 255, 255, 255, 255,
|
|
255, 255, 255, 255, 255, 255, 255, 255
|
|
};
|
|
|
|
static int cs8900_irq2eeint[16] = {
|
|
255, 255, 255, 255, 255, 3, 255, 255,
|
|
255, 0, 1, 2, 255, 255, 255, 255
|
|
};
|
|
|
|
static int
|
|
get_eeprom_data(struct cs_softc *sc, int off, int len, uint16_t *buffer)
|
|
{
|
|
int i;
|
|
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "EEPROM data from %x for %x:\n", off, len);
|
|
#endif
|
|
for (i=0; i < len; i++) {
|
|
if (wait_eeprom_ready(sc) < 0)
|
|
return (-1);
|
|
/* Send command to EEPROM to read */
|
|
cs_writereg(sc, PP_EECMD, (off + i) | EEPROM_READ_CMD);
|
|
if (wait_eeprom_ready(sc) < 0)
|
|
return (-1);
|
|
buffer[i] = cs_readreg(sc, PP_EEData);
|
|
|
|
#ifdef CS_DEBUG
|
|
printf("%04x ",buffer[i]);
|
|
#endif
|
|
}
|
|
|
|
#ifdef CS_DEBUG
|
|
printf("\n");
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
get_eeprom_cksum(int off, int len, uint16_t *buffer)
|
|
{
|
|
int i;
|
|
uint16_t cksum=0;
|
|
|
|
for (i = 0; i < len; i++)
|
|
cksum += buffer[i];
|
|
cksum &= 0xffff;
|
|
if (cksum == 0 || cs_ignore_cksum_failure)
|
|
return (0);
|
|
return (-1);
|
|
}
|
|
|
|
static int
|
|
wait_eeprom_ready(struct cs_softc *sc)
|
|
{
|
|
int i;
|
|
|
|
/*
|
|
* From the CS8900A datasheet, section 3.5.2:
|
|
* "Before issuing any command to the EEPROM, the host must wait
|
|
* for the SIBUSY bit (Register 16, SelfST, bit 8) to clear. After
|
|
* each command has been issued, the host must wait again for SIBUSY
|
|
* to clear."
|
|
*
|
|
* Before we issue the command, we should be !busy, so that will
|
|
* be fast. The datasheet suggests that clock out from the part
|
|
* per word will be on the order of 25us, which is consistant with
|
|
* the 1MHz serial clock and 16bits... We should never hit 100,
|
|
* let alone 15,000 here. The original code did an unconditional
|
|
* 30ms DELAY here. Bad Kharma. cs_readreg takes ~2us.
|
|
*/
|
|
for (i = 0; i < 15000; i++) /* 30ms max */
|
|
if (!(cs_readreg(sc, PP_SelfST) & SI_BUSY))
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
control_dc_dc(struct cs_softc *sc, int on_not_off)
|
|
{
|
|
unsigned int self_control = HCB1_ENBL;
|
|
|
|
if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0) ^ on_not_off)
|
|
self_control |= HCB1;
|
|
else
|
|
self_control &= ~HCB1;
|
|
cs_writereg(sc, PP_SelfCTL, self_control);
|
|
DELAY(500000); /* Bad! */
|
|
}
|
|
|
|
|
|
static int
|
|
cs_duplex_auto(struct cs_softc *sc)
|
|
{
|
|
int i, error=0;
|
|
|
|
cs_writereg(sc, PP_AutoNegCTL,
|
|
RE_NEG_NOW | ALLOW_FDX | AUTO_NEG_ENABLE);
|
|
for (i=0; cs_readreg(sc, PP_AutoNegST) & AUTO_NEG_BUSY; i++) {
|
|
if (i > 4000) {
|
|
device_printf(sc->dev,
|
|
"full/half duplex auto negotiation timeout\n");
|
|
error = ETIMEDOUT;
|
|
break;
|
|
}
|
|
DELAY(1000);
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
enable_tp(struct cs_softc *sc)
|
|
{
|
|
|
|
cs_writereg(sc, PP_LineCTL, sc->line_ctl & ~AUI_ONLY);
|
|
control_dc_dc(sc, 0);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
enable_aui(struct cs_softc *sc)
|
|
{
|
|
|
|
cs_writereg(sc, PP_LineCTL,
|
|
(sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
|
|
control_dc_dc(sc, 0);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
enable_bnc(struct cs_softc *sc)
|
|
{
|
|
|
|
cs_writereg(sc, PP_LineCTL,
|
|
(sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
|
|
control_dc_dc(sc, 1);
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
cs_cs89x0_probe(device_t dev)
|
|
{
|
|
int i;
|
|
int error;
|
|
u_long irq, junk;
|
|
struct cs_softc *sc = device_get_softc(dev);
|
|
unsigned rev_type = 0;
|
|
uint16_t id;
|
|
char chip_revision;
|
|
uint16_t eeprom_buff[CHKSUM_LEN];
|
|
int chip_type, pp_isaint, pp_isadma;
|
|
|
|
sc->dev = dev;
|
|
error = cs_alloc_port(dev, 0, CS_89x0_IO_PORTS);
|
|
if (error)
|
|
return (error);
|
|
|
|
if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) {
|
|
/* Chip not detected. Let's try to reset it */
|
|
if (bootverbose)
|
|
device_printf(dev, "trying to reset the chip.\n");
|
|
cs_outw(sc, ADD_PORT, PP_SelfCTL);
|
|
i = cs_inw(sc, DATA_PORT);
|
|
cs_outw(sc, ADD_PORT, PP_SelfCTL);
|
|
cs_outw(sc, DATA_PORT, i | POWER_ON_RESET);
|
|
if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG)
|
|
return (ENXIO);
|
|
}
|
|
|
|
for (i = 0; i < 10000; i++) {
|
|
id = cs_readreg(sc, PP_ChipID);
|
|
if (id == CHIP_EISA_ID_SIG)
|
|
break;
|
|
}
|
|
if (i == 10000)
|
|
return (ENXIO);
|
|
|
|
rev_type = cs_readreg(sc, PRODUCT_ID_ADD);
|
|
chip_type = rev_type & ~REVISON_BITS;
|
|
chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
|
|
|
|
sc->chip_type = chip_type;
|
|
|
|
if (chip_type == CS8900) {
|
|
pp_isaint = PP_CS8900_ISAINT;
|
|
pp_isadma = PP_CS8900_ISADMA;
|
|
sc->send_cmd = TX_CS8900_AFTER_ALL;
|
|
} else {
|
|
pp_isaint = PP_CS8920_ISAINT;
|
|
pp_isadma = PP_CS8920_ISADMA;
|
|
sc->send_cmd = TX_CS8920_AFTER_ALL;
|
|
}
|
|
|
|
/*
|
|
* Clear some fields so that fail of EEPROM will left them clean
|
|
*/
|
|
sc->auto_neg_cnf = 0;
|
|
sc->adapter_cnf = 0;
|
|
sc->isa_config = 0;
|
|
|
|
/*
|
|
* If no interrupt specified, use what the board tells us.
|
|
*/
|
|
error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk);
|
|
|
|
/*
|
|
* Get data from EEPROM
|
|
*/
|
|
if((cs_readreg(sc, PP_SelfST) & EEPROM_PRESENT) == 0) {
|
|
device_printf(dev, "No EEPROM, assuming defaults.\n");
|
|
} else if (get_eeprom_data(sc,START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) {
|
|
device_printf(dev, "EEPROM read failed, assuming defaults.\n");
|
|
} else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) {
|
|
device_printf(dev, "EEPROM cheksum bad, assuming defaults.\n");
|
|
} else {
|
|
sc->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET];
|
|
sc->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET];
|
|
sc->isa_config = eeprom_buff[ISA_CNF_OFFSET];
|
|
for (i=0; i<ETHER_ADDR_LEN/2; i++) {
|
|
sc->enaddr[i*2] = eeprom_buff[i];
|
|
sc->enaddr[i*2+1] = eeprom_buff[i] >> 8;
|
|
}
|
|
/*
|
|
* If no interrupt specified, use what the
|
|
* board tells us.
|
|
*/
|
|
if (error) {
|
|
irq = sc->isa_config & INT_NO_MASK;
|
|
error = 0;
|
|
if (chip_type == CS8900) {
|
|
irq = cs8900_eeint2irq[irq];
|
|
} else {
|
|
if (irq > CS8920_NO_INTS)
|
|
irq = 255;
|
|
}
|
|
if (irq == 255) {
|
|
device_printf(dev, "invalid irq in EEPROM.\n");
|
|
error = EINVAL;
|
|
}
|
|
if (!error)
|
|
bus_set_resource(dev, SYS_RES_IRQ, 0,
|
|
irq, 1);
|
|
}
|
|
}
|
|
|
|
if (!error && !(sc->flags & CS_NO_IRQ)) {
|
|
if (chip_type == CS8900) {
|
|
if (irq < 16)
|
|
irq = cs8900_irq2eeint[irq];
|
|
else
|
|
irq = 255;
|
|
} else {
|
|
if (irq > CS8920_NO_INTS)
|
|
irq = 255;
|
|
}
|
|
if (irq == 255)
|
|
error = EINVAL;
|
|
}
|
|
|
|
if (error) {
|
|
device_printf(dev, "Unknown or invalid irq\n");
|
|
return (error);
|
|
}
|
|
|
|
if (!(sc->flags & CS_NO_IRQ))
|
|
cs_writereg(sc, pp_isaint, irq);
|
|
|
|
/*
|
|
* Temporary disabled
|
|
*
|
|
if (drq>0)
|
|
cs_writereg(sc, pp_isadma, drq);
|
|
else {
|
|
device_printf(dev, "incorrect drq\n",);
|
|
return (0);
|
|
}
|
|
*/
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "CS89%c0%s rev %c media%s%s%s\n",
|
|
chip_type == CS8900 ? '0' : '2',
|
|
chip_type == CS8920M ? "M" : "",
|
|
chip_revision,
|
|
(sc->adapter_cnf & A_CNF_10B_T) ? " TP" : "",
|
|
(sc->adapter_cnf & A_CNF_AUI) ? " AUI" : "",
|
|
(sc->adapter_cnf & A_CNF_10B_2) ? " BNC" : "");
|
|
|
|
if ((sc->adapter_cnf & A_CNF_EXTND_10B_2) &&
|
|
(sc->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
|
|
sc->line_ctl = LOW_RX_SQUELCH;
|
|
else
|
|
sc->line_ctl = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Allocate a port resource with the given resource id.
|
|
*/
|
|
int
|
|
cs_alloc_port(device_t dev, int rid, int size)
|
|
{
|
|
struct cs_softc *sc = device_get_softc(dev);
|
|
struct resource *res;
|
|
|
|
res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
|
|
0ul, ~0ul, size, RF_ACTIVE);
|
|
if (res == NULL)
|
|
return (ENOENT);
|
|
sc->port_rid = rid;
|
|
sc->port_res = res;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Allocate an irq resource with the given resource id.
|
|
*/
|
|
int
|
|
cs_alloc_irq(device_t dev, int rid)
|
|
{
|
|
struct cs_softc *sc = device_get_softc(dev);
|
|
struct resource *res;
|
|
|
|
res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
|
|
if (res == NULL)
|
|
return (ENOENT);
|
|
sc->irq_rid = rid;
|
|
sc->irq_res = res;
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Release all resources
|
|
*/
|
|
void
|
|
cs_release_resources(device_t dev)
|
|
{
|
|
struct cs_softc *sc = device_get_softc(dev);
|
|
|
|
if (sc->port_res) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
sc->port_rid, sc->port_res);
|
|
sc->port_res = 0;
|
|
}
|
|
if (sc->irq_res) {
|
|
bus_release_resource(dev, SYS_RES_IRQ,
|
|
sc->irq_rid, sc->irq_res);
|
|
sc->irq_res = 0;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Install the interface into kernel networking data structures
|
|
*/
|
|
int
|
|
cs_attach(device_t dev)
|
|
{
|
|
int error, media=0;
|
|
struct cs_softc *sc = device_get_softc(dev);
|
|
struct ifnet *ifp;
|
|
|
|
sc->dev = dev;
|
|
|
|
ifp = sc->ifp = if_alloc(IFT_ETHER);
|
|
if (ifp == NULL) {
|
|
device_printf(dev, "can not if_alloc()\n");
|
|
cs_release_resources(dev);
|
|
return (ENOMEM);
|
|
}
|
|
|
|
mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK,
|
|
MTX_DEF);
|
|
callout_init_mtx(&sc->timer, &sc->lock, 0);
|
|
|
|
CS_LOCK(sc);
|
|
cs_stop(sc);
|
|
CS_UNLOCK(sc);
|
|
|
|
ifp->if_softc=sc;
|
|
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
|
|
ifp->if_start=cs_start;
|
|
ifp->if_ioctl=cs_ioctl;
|
|
ifp->if_init=cs_init;
|
|
IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen);
|
|
|
|
ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST);
|
|
|
|
/*
|
|
* this code still in progress (DMA support)
|
|
*
|
|
|
|
sc->recv_ring=malloc(CS_DMA_BUFFER_SIZE<<1, M_DEVBUF, M_NOWAIT);
|
|
if (sc->recv_ring == NULL) {
|
|
log(LOG_ERR,
|
|
"%s: Couldn't allocate memory for NIC\n", ifp->if_xname);
|
|
return(0);
|
|
}
|
|
if ((sc->recv_ring-(sc->recv_ring & 0x1FFFF))
|
|
< (128*1024-CS_DMA_BUFFER_SIZE))
|
|
sc->recv_ring+=16*1024;
|
|
|
|
*/
|
|
|
|
sc->buffer=malloc(ETHER_MAX_LEN-ETHER_CRC_LEN,M_DEVBUF,M_NOWAIT);
|
|
if (sc->buffer == NULL) {
|
|
device_printf(sc->dev, "Couldn't allocate memory for NIC\n");
|
|
if_free(ifp);
|
|
mtx_destroy(&sc->lock);
|
|
cs_release_resources(dev);
|
|
return(ENOMEM);
|
|
}
|
|
|
|
/*
|
|
* Initialize the media structures.
|
|
*/
|
|
ifmedia_init(&sc->media, 0, cs_mediachange, cs_mediastatus);
|
|
|
|
if (sc->adapter_cnf & A_CNF_10B_T) {
|
|
ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL);
|
|
if (sc->chip_type != CS8900) {
|
|
ifmedia_add(&sc->media,
|
|
IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
|
|
ifmedia_add(&sc->media,
|
|
IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
|
|
}
|
|
}
|
|
|
|
if (sc->adapter_cnf & A_CNF_10B_2)
|
|
ifmedia_add(&sc->media, IFM_ETHER|IFM_10_2, 0, NULL);
|
|
|
|
if (sc->adapter_cnf & A_CNF_AUI)
|
|
ifmedia_add(&sc->media, IFM_ETHER|IFM_10_5, 0, NULL);
|
|
|
|
if (sc->adapter_cnf & A_CNF_MEDIA)
|
|
ifmedia_add(&sc->media, IFM_ETHER|IFM_AUTO, 0, NULL);
|
|
|
|
/* Set default media from EEPROM */
|
|
switch (sc->adapter_cnf & A_CNF_MEDIA_TYPE) {
|
|
case A_CNF_MEDIA_AUTO: media = IFM_ETHER|IFM_AUTO; break;
|
|
case A_CNF_MEDIA_10B_T: media = IFM_ETHER|IFM_10_T; break;
|
|
case A_CNF_MEDIA_10B_2: media = IFM_ETHER|IFM_10_2; break;
|
|
case A_CNF_MEDIA_AUI: media = IFM_ETHER|IFM_10_5; break;
|
|
default:
|
|
device_printf(sc->dev, "no media, assuming 10baseT\n");
|
|
sc->adapter_cnf |= A_CNF_10B_T;
|
|
ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL);
|
|
if (sc->chip_type != CS8900) {
|
|
ifmedia_add(&sc->media,
|
|
IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
|
|
ifmedia_add(&sc->media,
|
|
IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
|
|
}
|
|
media = IFM_ETHER | IFM_10_T;
|
|
break;
|
|
}
|
|
ifmedia_set(&sc->media, media);
|
|
cs_mediaset(sc, media);
|
|
|
|
ether_ifattach(ifp, sc->enaddr);
|
|
|
|
error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE,
|
|
NULL, csintr, sc, &sc->irq_handle);
|
|
if (error) {
|
|
ether_ifdetach(ifp);
|
|
free(sc->buffer, M_DEVBUF);
|
|
if_free(ifp);
|
|
mtx_destroy(&sc->lock);
|
|
cs_release_resources(dev);
|
|
return (error);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
cs_detach(device_t dev)
|
|
{
|
|
struct cs_softc *sc;
|
|
struct ifnet *ifp;
|
|
|
|
sc = device_get_softc(dev);
|
|
ifp = sc->ifp;
|
|
|
|
CS_LOCK(sc);
|
|
cs_stop(sc);
|
|
CS_UNLOCK(sc);
|
|
callout_drain(&sc->timer);
|
|
ether_ifdetach(ifp);
|
|
bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
|
|
cs_release_resources(dev);
|
|
free(sc->buffer, M_DEVBUF);
|
|
if_free(ifp);
|
|
mtx_destroy(&sc->lock);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Initialize the board
|
|
*/
|
|
static void
|
|
cs_init(void *xsc)
|
|
{
|
|
struct cs_softc *sc=(struct cs_softc *)xsc;
|
|
|
|
CS_LOCK(sc);
|
|
cs_init_locked(sc);
|
|
CS_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
cs_init_locked(struct cs_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->ifp;
|
|
int i, rx_cfg;
|
|
|
|
/*
|
|
* reset watchdog timer
|
|
*/
|
|
sc->tx_timeout = 0;
|
|
sc->buf_len = 0;
|
|
|
|
/*
|
|
* Hardware initialization of cs
|
|
*/
|
|
|
|
/* Enable receiver and transmitter */
|
|
cs_writereg(sc, PP_LineCTL,
|
|
cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON);
|
|
|
|
/* Configure the receiver mode */
|
|
cs_setmode(sc);
|
|
|
|
/*
|
|
* This defines what type of frames will cause interrupts
|
|
* Bad frames should generate interrupts so that the driver
|
|
* could track statistics of discarded packets
|
|
*/
|
|
rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL | RX_RUNT_ENBL |
|
|
RX_EXTRA_DATA_ENBL;
|
|
if (sc->isa_config & STREAM_TRANSFER)
|
|
rx_cfg |= RX_STREAM_ENBL;
|
|
cs_writereg(sc, PP_RxCFG, rx_cfg);
|
|
cs_writereg(sc, PP_TxCFG, TX_LOST_CRS_ENBL |
|
|
TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL |
|
|
TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
|
|
cs_writereg(sc, PP_BufCFG, READY_FOR_TX_ENBL |
|
|
RX_MISS_COUNT_OVRFLOW_ENBL | TX_COL_COUNT_OVRFLOW_ENBL |
|
|
TX_UNDERRUN_ENBL /*| RX_DMA_ENBL*/);
|
|
|
|
/* Write MAC address into IA filter */
|
|
for (i=0; i<ETHER_ADDR_LEN/2; i++)
|
|
cs_writereg(sc, PP_IA + i * 2,
|
|
sc->enaddr[i * 2] |
|
|
(sc->enaddr[i * 2 + 1] << 8) );
|
|
|
|
/*
|
|
* Now enable everything
|
|
*/
|
|
/*
|
|
#ifdef CS_USE_64K_DMA
|
|
cs_writereg(sc, PP_BusCTL, ENABLE_IRQ | RX_DMA_SIZE_64K);
|
|
#else
|
|
cs_writereg(sc, PP_BusCTL, ENABLE_IRQ);
|
|
#endif
|
|
*/
|
|
cs_writereg(sc, PP_BusCTL, ENABLE_IRQ);
|
|
|
|
/*
|
|
* Set running and clear output active flags
|
|
*/
|
|
sc->ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
callout_reset(&sc->timer, hz, cs_watchdog, sc);
|
|
|
|
/*
|
|
* Start sending process
|
|
*/
|
|
cs_start_locked(ifp);
|
|
}
|
|
|
|
/*
|
|
* Get the packet from the board and send it to the upper layer.
|
|
*/
|
|
static int
|
|
cs_get_packet(struct cs_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->ifp;
|
|
int status, length;
|
|
struct ether_header *eh;
|
|
struct mbuf *m;
|
|
|
|
#ifdef CS_DEBUG
|
|
int i;
|
|
#endif
|
|
|
|
status = cs_inw(sc, RX_FRAME_PORT);
|
|
length = cs_inw(sc, RX_FRAME_PORT);
|
|
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "rcvd: stat %x, len %d\n",
|
|
status, length);
|
|
#endif
|
|
|
|
if (!(status & RX_OK)) {
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "bad pkt stat %x\n", status);
|
|
#endif
|
|
ifp->if_ierrors++;
|
|
return (-1);
|
|
}
|
|
|
|
MGETHDR(m, M_DONTWAIT, MT_DATA);
|
|
if (m==NULL)
|
|
return (-1);
|
|
|
|
if (length > MHLEN) {
|
|
MCLGET(m, M_DONTWAIT);
|
|
if (!(m->m_flags & M_EXT)) {
|
|
m_freem(m);
|
|
return (-1);
|
|
}
|
|
}
|
|
|
|
/* Initialize packet's header info */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
m->m_pkthdr.len = length;
|
|
m->m_len = length;
|
|
|
|
/* Get the data */
|
|
bus_read_multi_2(sc->port_res, RX_FRAME_PORT, mtod(m, uint16_t *),
|
|
(length + 1) >> 1);
|
|
|
|
eh = mtod(m, struct ether_header *);
|
|
|
|
#ifdef CS_DEBUG
|
|
for (i=0;i<length;i++)
|
|
printf(" %02x",(unsigned char)*((char *)(m->m_data+i)));
|
|
printf( "\n" );
|
|
#endif
|
|
|
|
if (status & (RX_IA | RX_BROADCAST) ||
|
|
(ifp->if_flags & IFF_MULTICAST && status & RX_HASHED)) {
|
|
/* Feed the packet to the upper layer */
|
|
(*ifp->if_input)(ifp, m);
|
|
ifp->if_ipackets++;
|
|
if (length == ETHER_MAX_LEN-ETHER_CRC_LEN)
|
|
DELAY(cs_recv_delay);
|
|
} else {
|
|
m_freem(m);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle interrupts
|
|
*/
|
|
void
|
|
csintr(void *arg)
|
|
{
|
|
struct cs_softc *sc = (struct cs_softc*) arg;
|
|
struct ifnet *ifp = sc->ifp;
|
|
int status;
|
|
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "Interrupt.\n");
|
|
#endif
|
|
|
|
CS_LOCK(sc);
|
|
while ((status=cs_inw(sc, ISQ_PORT))) {
|
|
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "from ISQ: %04x\n", status);
|
|
#endif
|
|
|
|
switch (status & ISQ_EVENT_MASK) {
|
|
case ISQ_RECEIVER_EVENT:
|
|
cs_get_packet(sc);
|
|
break;
|
|
|
|
case ISQ_TRANSMITTER_EVENT:
|
|
if (status & TX_OK)
|
|
ifp->if_opackets++;
|
|
else
|
|
ifp->if_oerrors++;
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
sc->tx_timeout = 0;
|
|
break;
|
|
|
|
case ISQ_BUFFER_EVENT:
|
|
if (status & READY_FOR_TX) {
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
sc->tx_timeout = 0;
|
|
}
|
|
|
|
if (status & TX_UNDERRUN) {
|
|
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
|
|
sc->tx_timeout = 0;
|
|
ifp->if_oerrors++;
|
|
}
|
|
break;
|
|
|
|
case ISQ_RX_MISS_EVENT:
|
|
ifp->if_ierrors+=(status>>6);
|
|
break;
|
|
|
|
case ISQ_TX_COL_EVENT:
|
|
ifp->if_collisions+=(status>>6);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!(ifp->if_drv_flags & IFF_DRV_OACTIVE)) {
|
|
cs_start_locked(ifp);
|
|
}
|
|
CS_UNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* Save the data in buffer
|
|
*/
|
|
|
|
static void
|
|
cs_write_mbufs( struct cs_softc *sc, struct mbuf *m )
|
|
{
|
|
int len;
|
|
struct mbuf *mp;
|
|
unsigned char *data, *buf;
|
|
|
|
for (mp=m, buf=sc->buffer, sc->buf_len=0; mp != NULL; mp=mp->m_next) {
|
|
len = mp->m_len;
|
|
|
|
/*
|
|
* Ignore empty parts
|
|
*/
|
|
if (!len)
|
|
continue;
|
|
|
|
/*
|
|
* Find actual data address
|
|
*/
|
|
data = mtod(mp, caddr_t);
|
|
|
|
bcopy((caddr_t) data, (caddr_t) buf, len);
|
|
buf += len;
|
|
sc->buf_len += len;
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
cs_xmit_buf( struct cs_softc *sc )
|
|
{
|
|
bus_write_multi_2(sc->port_res, TX_FRAME_PORT, (uint16_t *)sc->buffer,
|
|
(sc->buf_len + 1) >> 1);
|
|
sc->buf_len = 0;
|
|
}
|
|
|
|
static void
|
|
cs_start(struct ifnet *ifp)
|
|
{
|
|
struct cs_softc *sc = ifp->if_softc;
|
|
|
|
CS_LOCK(sc);
|
|
cs_start_locked(ifp);
|
|
CS_UNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
cs_start_locked(struct ifnet *ifp)
|
|
{
|
|
int length;
|
|
struct mbuf *m, *mp;
|
|
struct cs_softc *sc = ifp->if_softc;
|
|
|
|
for (;;) {
|
|
if (sc->buf_len)
|
|
length = sc->buf_len;
|
|
else {
|
|
IF_DEQUEUE( &ifp->if_snd, m );
|
|
|
|
if (m==NULL) {
|
|
return;
|
|
}
|
|
|
|
for (length=0, mp=m; mp != NULL; mp=mp->m_next)
|
|
length += mp->m_len;
|
|
|
|
/* Skip zero-length packets */
|
|
if (length == 0) {
|
|
m_freem(m);
|
|
continue;
|
|
}
|
|
|
|
cs_write_mbufs(sc, m);
|
|
|
|
BPF_MTAP(ifp, m);
|
|
|
|
m_freem(m);
|
|
}
|
|
|
|
/*
|
|
* Issue a SEND command
|
|
*/
|
|
cs_outw(sc, TX_CMD_PORT, sc->send_cmd);
|
|
cs_outw(sc, TX_LEN_PORT, length );
|
|
|
|
/*
|
|
* If there's no free space in the buffer then leave
|
|
* this packet for the next time: indicate output active
|
|
* and return.
|
|
*/
|
|
if (!(cs_readreg(sc, PP_BusST) & READY_FOR_TX_NOW)) {
|
|
sc->tx_timeout = sc->buf_len;
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
return;
|
|
}
|
|
|
|
cs_xmit_buf(sc);
|
|
|
|
/*
|
|
* Set the watchdog timer in case we never hear
|
|
* from board again. (I don't know about correct
|
|
* value for this timeout)
|
|
*/
|
|
sc->tx_timeout = length;
|
|
|
|
ifp->if_drv_flags |= IFF_DRV_OACTIVE;
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stop everything on the interface
|
|
*/
|
|
static void
|
|
cs_stop(struct cs_softc *sc)
|
|
{
|
|
|
|
CS_ASSERT_LOCKED(sc);
|
|
cs_writereg(sc, PP_RxCFG, 0);
|
|
cs_writereg(sc, PP_TxCFG, 0);
|
|
cs_writereg(sc, PP_BufCFG, 0);
|
|
cs_writereg(sc, PP_BusCTL, 0);
|
|
|
|
sc->ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE);
|
|
sc->tx_timeout = 0;
|
|
callout_stop(&sc->timer);
|
|
}
|
|
|
|
/*
|
|
* Reset the interface
|
|
*/
|
|
static void
|
|
cs_reset(struct cs_softc *sc)
|
|
{
|
|
|
|
CS_ASSERT_LOCKED(sc);
|
|
cs_stop(sc);
|
|
cs_init_locked(sc);
|
|
}
|
|
|
|
static uint16_t
|
|
cs_hash_index(struct sockaddr_dl *addr)
|
|
{
|
|
uint32_t crc;
|
|
uint16_t idx;
|
|
caddr_t lla;
|
|
|
|
lla = LLADDR(addr);
|
|
crc = ether_crc32_le(lla, ETHER_ADDR_LEN);
|
|
idx = crc >> 26;
|
|
|
|
return (idx);
|
|
}
|
|
|
|
static void
|
|
cs_setmode(struct cs_softc *sc)
|
|
{
|
|
int rx_ctl;
|
|
uint16_t af[4];
|
|
uint16_t port, mask, index;
|
|
struct ifnet *ifp = sc->ifp;
|
|
struct ifmultiaddr *ifma;
|
|
|
|
/* Stop the receiver while changing filters */
|
|
cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & ~SERIAL_RX_ON);
|
|
|
|
if (ifp->if_flags & IFF_PROMISC) {
|
|
/* Turn on promiscuous mode. */
|
|
rx_ctl = RX_OK_ACCEPT | RX_PROM_ACCEPT;
|
|
} else if (ifp->if_flags & IFF_MULTICAST) {
|
|
/* Allow receiving frames with multicast addresses */
|
|
rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
|
|
RX_OK_ACCEPT | RX_MULTCAST_ACCEPT;
|
|
|
|
/* Start with an empty filter */
|
|
af[0] = af[1] = af[2] = af[3] = 0x0000;
|
|
|
|
if (ifp->if_flags & IFF_ALLMULTI) {
|
|
/* Accept all multicast frames */
|
|
af[0] = af[1] = af[2] = af[3] = 0xffff;
|
|
} else {
|
|
/*
|
|
* Set up the filter to only accept multicast
|
|
* frames we're interested in.
|
|
*/
|
|
if_maddr_rlock(ifp);
|
|
TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
|
|
struct sockaddr_dl *dl =
|
|
(struct sockaddr_dl *)ifma->ifma_addr;
|
|
|
|
index = cs_hash_index(dl);
|
|
port = (u_int16_t) (index >> 4);
|
|
mask = (u_int16_t) (1 << (index & 0xf));
|
|
af[port] |= mask;
|
|
}
|
|
if_maddr_runlock(ifp);
|
|
}
|
|
|
|
cs_writereg(sc, PP_LAF + 0, af[0]);
|
|
cs_writereg(sc, PP_LAF + 2, af[1]);
|
|
cs_writereg(sc, PP_LAF + 4, af[2]);
|
|
cs_writereg(sc, PP_LAF + 6, af[3]);
|
|
} else {
|
|
/*
|
|
* Receive only good frames addressed for us and
|
|
* good broadcasts.
|
|
*/
|
|
rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
|
|
RX_OK_ACCEPT;
|
|
}
|
|
|
|
/* Set up the filter */
|
|
cs_writereg(sc, PP_RxCTL, RX_DEF_ACCEPT | rx_ctl);
|
|
|
|
/* Turn on receiver */
|
|
cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON);
|
|
}
|
|
|
|
static int
|
|
cs_ioctl(register struct ifnet *ifp, u_long command, caddr_t data)
|
|
{
|
|
struct cs_softc *sc=ifp->if_softc;
|
|
struct ifreq *ifr = (struct ifreq *)data;
|
|
int error=0;
|
|
|
|
#ifdef CS_DEBUG
|
|
if_printf(ifp, "%s command=%lx\n", __func__, command);
|
|
#endif
|
|
|
|
switch (command) {
|
|
case SIOCSIFFLAGS:
|
|
/*
|
|
* Switch interface state between "running" and
|
|
* "stopped", reflecting the UP flag.
|
|
*/
|
|
CS_LOCK(sc);
|
|
if (sc->ifp->if_flags & IFF_UP) {
|
|
if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)==0) {
|
|
cs_init_locked(sc);
|
|
}
|
|
} else {
|
|
if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)!=0) {
|
|
cs_stop(sc);
|
|
}
|
|
}
|
|
/*
|
|
* Promiscuous and/or multicast flags may have changed,
|
|
* so reprogram the multicast filter and/or receive mode.
|
|
*
|
|
* See note about multicasts in cs_setmode
|
|
*/
|
|
cs_setmode(sc);
|
|
CS_UNLOCK(sc);
|
|
break;
|
|
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
/*
|
|
* Multicast list has changed; set the hardware filter
|
|
* accordingly.
|
|
*
|
|
* See note about multicasts in cs_setmode
|
|
*/
|
|
CS_LOCK(sc);
|
|
cs_setmode(sc);
|
|
CS_UNLOCK(sc);
|
|
error = 0;
|
|
break;
|
|
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
|
|
break;
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, command, data);
|
|
break;
|
|
}
|
|
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Device timeout/watchdog routine. Entered if the device neglects to
|
|
* generate an interrupt after a transmit has been started on it.
|
|
*/
|
|
static void
|
|
cs_watchdog(void *arg)
|
|
{
|
|
struct cs_softc *sc = arg;
|
|
struct ifnet *ifp = sc->ifp;
|
|
|
|
CS_ASSERT_LOCKED(sc);
|
|
if (sc->tx_timeout && --sc->tx_timeout == 0) {
|
|
ifp->if_oerrors++;
|
|
log(LOG_ERR, "%s: device timeout\n", ifp->if_xname);
|
|
|
|
/* Reset the interface */
|
|
if (ifp->if_flags & IFF_UP)
|
|
cs_reset(sc);
|
|
else
|
|
cs_stop(sc);
|
|
}
|
|
callout_reset(&sc->timer, hz, cs_watchdog, sc);
|
|
}
|
|
|
|
static int
|
|
cs_mediachange(struct ifnet *ifp)
|
|
{
|
|
struct cs_softc *sc = ifp->if_softc;
|
|
struct ifmedia *ifm = &sc->media;
|
|
int error;
|
|
|
|
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
|
|
return (EINVAL);
|
|
|
|
CS_LOCK(sc);
|
|
error = cs_mediaset(sc, ifm->ifm_media);
|
|
CS_UNLOCK(sc);
|
|
return (error);
|
|
}
|
|
|
|
static void
|
|
cs_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
|
|
{
|
|
int line_status;
|
|
struct cs_softc *sc = ifp->if_softc;
|
|
|
|
CS_LOCK(sc);
|
|
ifmr->ifm_active = IFM_ETHER;
|
|
line_status = cs_readreg(sc, PP_LineST);
|
|
if (line_status & TENBASET_ON) {
|
|
ifmr->ifm_active |= IFM_10_T;
|
|
if (sc->chip_type != CS8900) {
|
|
if (cs_readreg(sc, PP_AutoNegST) & FDX_ACTIVE)
|
|
ifmr->ifm_active |= IFM_FDX;
|
|
if (cs_readreg(sc, PP_AutoNegST) & HDX_ACTIVE)
|
|
ifmr->ifm_active |= IFM_HDX;
|
|
}
|
|
ifmr->ifm_status = IFM_AVALID;
|
|
if (line_status & LINK_OK)
|
|
ifmr->ifm_status |= IFM_ACTIVE;
|
|
} else {
|
|
if (line_status & AUI_ON) {
|
|
cs_writereg(sc, PP_SelfCTL, cs_readreg(sc, PP_SelfCTL) |
|
|
HCB1_ENBL);
|
|
if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0)^
|
|
(cs_readreg(sc, PP_SelfCTL) & HCB1))
|
|
ifmr->ifm_active |= IFM_10_2;
|
|
else
|
|
ifmr->ifm_active |= IFM_10_5;
|
|
}
|
|
}
|
|
CS_UNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
cs_mediaset(struct cs_softc *sc, int media)
|
|
{
|
|
int error = 0;
|
|
|
|
/* Stop the receiver & transmitter */
|
|
cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) &
|
|
~(SERIAL_RX_ON | SERIAL_TX_ON));
|
|
|
|
#ifdef CS_DEBUG
|
|
device_printf(sc->dev, "%s media=%x\n", __func__, media);
|
|
#endif
|
|
|
|
switch (IFM_SUBTYPE(media)) {
|
|
default:
|
|
case IFM_AUTO:
|
|
/*
|
|
* This chip makes it a little hard to support this, so treat
|
|
* it as IFM_10_T, auto duplex.
|
|
*/
|
|
enable_tp(sc);
|
|
cs_duplex_auto(sc);
|
|
break;
|
|
case IFM_10_T:
|
|
enable_tp(sc);
|
|
if (media & IFM_FDX)
|
|
cs_duplex_full(sc);
|
|
else if (media & IFM_HDX)
|
|
cs_duplex_half(sc);
|
|
else
|
|
error = cs_duplex_auto(sc);
|
|
break;
|
|
case IFM_10_2:
|
|
enable_bnc(sc);
|
|
break;
|
|
case IFM_10_5:
|
|
enable_aui(sc);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Turn the transmitter & receiver back on
|
|
*/
|
|
cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) |
|
|
SERIAL_RX_ON | SERIAL_TX_ON);
|
|
|
|
return (error);
|
|
}
|