2 * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: src/sys/dev/cs/if_cs.c,v 1.19.2.1 2001/01/25 20:13:48 imp Exp $
31 * Device driver for Crystal Semiconductor CS8920 based ethernet
32 * adapters. By Maxim Bolotin and Oleg Sharoiko, 27-April-1997
39 #include <sys/param.h>
40 #include <sys/systm.h>
41 #include <sys/interrupt.h>
42 #include <sys/malloc.h>
44 #include <sys/socket.h>
45 #include <sys/sockio.h>
46 #include <sys/kernel.h>
47 #include <sys/sysctl.h>
48 #include <sys/syslog.h>
49 #include <sys/module.h>
52 #include <sys/thread2.h>
53 #include <sys/machintr.h>
55 #include <machine/clock.h>
58 #include <net/ifq_var.h>
59 #include <net/if_arp.h>
60 #include <net/if_media.h>
61 #include <net/ethernet.h>
68 #define CS_DMA_BUFFER_SIZE 65536
70 #define CS_DMA_BUFFER_SIZE 16384
73 static int cs_recv_delay = 570;
74 SYSCTL_INT(_machdep, OID_AUTO, cs_recv_delay, CTLFLAG_RW, &cs_recv_delay, 0, "");
76 static void cs_init(void *);
77 static int cs_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *);
78 static void cs_start(struct ifnet *, struct ifaltq_subque *);
79 static void cs_stop(struct cs_softc *);
80 static void cs_reset(struct cs_softc *);
81 static void cs_watchdog(struct ifnet *);
82 static void csintr(void *);
84 static int cs_mediachange(struct ifnet *);
85 static void cs_mediastatus(struct ifnet *, struct ifmediareq *);
86 static int cs_mediaset(struct cs_softc *, int);
88 static void cs_write_mbufs(struct cs_softc*, struct mbuf*);
89 static void cs_xmit_buf(struct cs_softc*);
90 static int cs_get_packet(struct cs_softc*);
91 static void cs_setmode(struct cs_softc*);
93 static int get_eeprom_data(device_t, int, int, int *);
94 static int get_eeprom_cksum(int, int, int *);
95 static int wait_eeprom_ready( struct cs_softc *);
96 static void control_dc_dc(struct cs_softc *, int );
97 static int send_test_pkt(struct cs_softc * );
98 static int enable_tp(struct cs_softc *);
99 static int enable_aui(struct cs_softc *);
100 static int enable_bnc(struct cs_softc *);
101 static int cs_duplex_auto(struct cs_softc *);
103 devclass_t cs_devclass;
105 DECLARE_DUMMY_MODULE(if_cs);
108 get_eeprom_data(device_t dev, int off, int len, int *buffer)
113 sc = device_get_softc(dev);
116 device_printf(dev, "EEPROM data from %x for %x:\n", off, len);
119 for (i=0;i<len;i++) {
120 if (wait_eeprom_ready(sc) < 0) return -1;
121 /* Send command to EEPROM to read */
122 cs_writereg(sc->nic_addr, PP_EECMD, (off+i)|EEPROM_READ_CMD );
123 if (wait_eeprom_ready(sc)<0)
125 buffer[i] = cs_readreg (sc->nic_addr, PP_EEData);
128 kprintf("%02x %02x ",(unsigned char)buffer[i],
129 (unsigned char)buffer[i+1]);
141 get_eeprom_cksum(int off, int len, int *buffer)
154 wait_eeprom_ready(struct cs_softc *sc)
156 DELAY ( 30000 ); /* XXX should we do some checks here ? */
161 control_dc_dc(struct cs_softc *sc, int on_not_off)
163 unsigned int self_control = HCB1_ENBL;
165 if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0) ^ on_not_off)
166 self_control |= HCB1;
168 self_control &= ~HCB1;
169 cs_writereg( sc->nic_addr, PP_SelfCTL, self_control );
176 cs_duplex_auto(struct cs_softc *sc)
180 cs_writereg(sc->nic_addr, PP_AutoNegCTL,
181 RE_NEG_NOW | ALLOW_FDX | AUTO_NEG_ENABLE );
182 for (i=0; cs_readreg(sc->nic_addr,PP_AutoNegST)&AUTO_NEG_BUSY; i++) {
184 if_printf(&sc->arpcom.ac_if, "full/half duplex "
185 "auto negotiation timeout\n");
196 enable_tp(struct cs_softc *sc)
198 cs_writereg(sc->nic_addr, PP_LineCTL, sc->line_ctl & ~AUI_ONLY);
199 control_dc_dc(sc, 0);
202 if ((cs_readreg(sc->nic_addr, PP_LineST) & LINK_OK)==0) {
203 if_printf(&sc->arpcom.ac_if, "failed to enable TP\n");
211 * XXX This was rewritten from Linux driver without any tests.
214 send_test_pkt(struct cs_softc *sc)
216 char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0,
217 0, 46, /* A 46 in network order */
218 0, 0, /* DSAP=0 & SSAP=0 fields */
219 0xf3, 0 /* Control (Test Req + P bit set) */ };
221 u_char ether_address_backup[ETHER_ADDR_LEN];
223 for (i = 0; i < ETHER_ADDR_LEN; i++) {
224 ether_address_backup[i] = sc->arpcom.ac_enaddr[i];
227 cs_writereg(sc->nic_addr, PP_LineCTL,
228 cs_readreg(sc->nic_addr, PP_LineCTL) | SERIAL_TX_ON );
230 sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
231 bcopy(test_packet+ETHER_ADDR_LEN,
232 sc->arpcom.ac_enaddr, ETHER_ADDR_LEN);
233 outw(sc->nic_addr + TX_CMD_PORT, sc->send_cmd);
234 outw(sc->nic_addr + TX_LEN_PORT, sizeof(test_packet));
236 /* Wait for chip to allocate memory */
238 if (!(cs_readreg(sc->nic_addr, PP_BusST) & READY_FOR_TX_NOW)) {
239 for (i = 0; i < ETHER_ADDR_LEN; i++) {
240 sc->arpcom.ac_enaddr[i] = ether_address_backup[i];
245 outsw(sc->nic_addr + TX_FRAME_PORT, test_packet, sizeof(test_packet));
249 if ((cs_readreg(sc->nic_addr,PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) {
250 for (i = 0; i < ETHER_ADDR_LEN; i++) {
251 sc->arpcom.ac_enaddr[i] = ether_address_backup[i];
255 for (i = 0; i < ETHER_ADDR_LEN; i++) {
256 sc->arpcom.ac_enaddr[i] = ether_address_backup[i];
262 * XXX This was rewritten from Linux driver without any tests.
265 enable_aui(struct cs_softc *sc)
267 control_dc_dc(sc, 0);
268 cs_writereg(sc->nic_addr, PP_LineCTL,
269 (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
271 if (!send_test_pkt(sc)) {
272 if_printf(&sc->arpcom.ac_if, "failed to enable AUI\n");
279 * XXX This was rewritten from Linux driver without any tests.
282 enable_bnc(struct cs_softc *sc)
284 control_dc_dc(sc, 1);
285 cs_writereg(sc->nic_addr, PP_LineCTL,
286 (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY);
288 if (!send_test_pkt(sc)) {
289 if_printf(&sc->arpcom.ac_if, "failed to enable BNC\n");
296 cs_cs89x0_probe(device_t dev)
304 struct cs_softc *sc = device_get_softc(dev);
306 unsigned rev_type = 0;
308 int eeprom_buff[CHKSUM_LEN];
309 int chip_type, pp_isaint;
310 #if 0 /* Temporary disabled */
314 error = cs_alloc_port(dev, 0, CS_89x0_IO_PORTS);
318 iobase=rman_get_start(sc->port_res);
320 if ((inw(iobase+ADD_PORT) & ADD_MASK) != ADD_SIG) {
321 /* Chip not detected. Let's try to reset it */
323 device_printf(dev, "trying to reset the chip.\n");
324 outw(iobase+ADD_PORT, PP_SelfCTL);
325 i = inw(iobase+DATA_PORT);
326 outw(iobase+ADD_PORT, PP_SelfCTL);
327 outw(iobase+DATA_PORT, i | POWER_ON_RESET);
328 if ((inw(iobase+ADD_PORT) & ADD_MASK) != ADD_SIG)
332 outw(iobase+ADD_PORT, PP_ChipID);
333 if (inw(iobase+DATA_PORT) != CHIP_EISA_ID_SIG)
336 rev_type = cs_readreg(iobase, PRODUCT_ID_ADD);
337 chip_type = rev_type & ~REVISON_BITS;
338 chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A';
340 sc->nic_addr = iobase;
341 sc->chip_type = chip_type;
343 if(chip_type==CS8900) {
344 pp_isaint = PP_CS8900_ISAINT;
345 #if 0 /* Temporary disabled */
346 pp_isadma = PP_CS8900_ISADMA;
348 sc->send_cmd = TX_CS8900_AFTER_ALL;
350 pp_isaint = PP_CS8920_ISAINT;
351 #if 0 /* Temporary disabled */
352 pp_isadma = PP_CS8920_ISADMA;
354 sc->send_cmd = TX_CS8920_AFTER_ALL;
358 * Clear some fields so that fail of EEPROM will left them clean
360 sc->auto_neg_cnf = 0;
365 * If no interrupt specified (or "?"), use what the board tells us.
367 error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk);
370 * Get data from EEPROM
372 if((cs_readreg(iobase, PP_SelfST) & EEPROM_PRESENT) == 0) {
373 device_printf(dev, "No EEPROM, assuming defaults.\n");
375 if (get_eeprom_data(dev, START_EEPROM_DATA, CHKSUM_LEN,
377 device_printf(dev, "EEPROM read failed, "
378 "assuming defaults.\n");
380 if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) {
381 device_printf(dev, "EEPROM cheksum bad, "
382 "assuming defaults.\n");
385 eeprom_buff[AUTO_NEG_CNF_OFFSET/2];
387 eeprom_buff[ADAPTER_CNF_OFFSET/2];
389 eeprom_buff[ISA_CNF_OFFSET/2];
391 for (i=0; i<ETHER_ADDR_LEN/2; i++) {
392 sc->arpcom.ac_enaddr[i*2]=
394 sc->arpcom.ac_enaddr[i*2+1]=
399 * If no interrupt specified (or "?"),
400 * use what the board tells us.
403 irq = sc->isa_config & INT_NO_MASK;
404 if (chip_type==CS8900) {
423 device_printf(dev, "invalid irq in EEPROM.\n");
427 if (irq>CS8920_NO_INTS) {
428 device_printf(dev, "invalid irq in EEPROM.\n");
436 bus_set_resource(dev, SYS_RES_IRQ, 0,
437 irq, 1, machintr_legacy_intr_cpuid(irq));
445 if (chip_type == CS8900) {
463 if (irq > CS8920_NO_INTS) {
470 cs_writereg(iobase, pp_isaint, irq);
472 device_printf(dev, "Unknown or invalid irq\n");
476 #if 0 /* Temporary disabled */
478 cs_writereg(iobase, pp_isadma, drq);
480 device_printf(dev, "incorrect drq\n");
486 device_printf(dev, "CS89%c0%s rev %c media%s%s%s\n",
487 chip_type==CS8900 ? '0' : '2',
488 chip_type==CS8920M ? "M" : "",
490 (sc->adapter_cnf & A_CNF_10B_T) ? " TP" : "",
491 (sc->adapter_cnf & A_CNF_AUI) ? " AUI" : "",
492 (sc->adapter_cnf & A_CNF_10B_2) ? " BNC" : "");
494 if ((sc->adapter_cnf & A_CNF_EXTND_10B_2) &&
495 (sc->adapter_cnf & A_CNF_LOW_RX_SQUELCH))
496 sc->line_ctl = LOW_RX_SQUELCH;
505 * Allocate a port resource with the given resource id.
508 cs_alloc_port(device_t dev, int rid, int size)
510 struct cs_softc *sc = device_get_softc(dev);
511 struct resource *res;
513 res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid,
514 0ul, ~0ul, size, RF_ACTIVE);
518 sc->port_used = size;
526 * Allocate a memory resource with the given resource id.
529 cs_alloc_memory(device_t dev, int rid, int size)
531 struct cs_softc *sc = device_get_softc(dev);
532 struct resource *res;
534 res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid,
535 0ul, ~0ul, size, RF_ACTIVE);
547 * Allocate an irq resource with the given resource id.
550 cs_alloc_irq(device_t dev, int rid, int flags)
552 struct cs_softc *sc = device_get_softc(dev);
553 struct resource *res;
555 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid,
556 (RF_ACTIVE | flags));
567 * Release all resources
570 cs_release_resources(device_t dev)
572 struct cs_softc *sc = device_get_softc(dev);
575 bus_release_resource(dev, SYS_RES_IOPORT,
576 sc->port_rid, sc->port_res);
580 bus_release_resource(dev, SYS_RES_MEMORY,
581 sc->mem_rid, sc->mem_res);
585 bus_release_resource(dev, SYS_RES_IRQ,
586 sc->irq_rid, sc->irq_res);
592 * Install the interface into kernel networking data structures
595 cs_attach(device_t dev)
597 struct cs_softc *sc = device_get_softc(dev);
598 int media = 0, error;
599 struct ifnet *ifp = &sc->arpcom.ac_if;
602 * Initialize the media structures.
604 ifmedia_init(&sc->media, 0, cs_mediachange, cs_mediastatus);
606 KASSERT(sc->port_used > 0 || sc->mem_used > 0,
607 ("%s: either I/O port or I/O memory should be used",
608 device_get_nameunit(dev)));
609 if (sc->port_used > 0)
610 cs_alloc_port(dev, sc->port_rid, sc->port_used);
611 if (sc->mem_used > 0)
612 cs_alloc_memory(dev, sc->mem_rid, sc->mem_used);
614 error = cs_alloc_irq(dev, sc->irq_rid, 0);
616 device_printf(dev, "Couldn't allocate irq");
623 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
624 ifp->if_start=cs_start;
625 ifp->if_ioctl=cs_ioctl;
626 ifp->if_watchdog=cs_watchdog;
627 ifp->if_init=cs_init;
628 ifq_set_maxlen(&ifp->if_snd, IFQ_MAXLEN);
629 ifq_set_ready(&ifp->if_snd);
635 ifp->if_linkmib=&sc->mibdata;
636 ifp->if_linkmiblen=sizeof sc->mibdata;
639 ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST );
643 * this code still in progress (DMA support)
645 sc->recv_ring=kmalloc(CS_DMA_BUFFER_SIZE<<1, M_DEVBUF, M_WAITOK);
646 if ((sc->recv_ring-(sc->recv_ring & 0x1FFFF))
647 < (128*1024-CS_DMA_BUFFER_SIZE))
648 sc->recv_ring+=16*1024;
651 sc->buffer=kmalloc(ETHER_MAX_LEN-ETHER_CRC_LEN,M_DEVBUF,M_WAITOK);
653 if (sc->adapter_cnf & A_CNF_10B_T) {
654 ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL);
655 if (sc->chip_type != CS8900) {
656 ifmedia_add(&sc->media,
657 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL);
658 ifmedia_add(&sc->media,
659 IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL);
663 if (sc->adapter_cnf & A_CNF_10B_2)
664 ifmedia_add(&sc->media, IFM_ETHER|IFM_10_2, 0, NULL);
666 if (sc->adapter_cnf & A_CNF_AUI)
667 ifmedia_add(&sc->media, IFM_ETHER|IFM_10_5, 0, NULL);
669 if (sc->adapter_cnf & A_CNF_MEDIA)
670 ifmedia_add(&sc->media, IFM_ETHER|IFM_AUTO, 0, NULL);
672 /* Set default media from EEPROM */
673 switch (sc->adapter_cnf & A_CNF_MEDIA_TYPE) {
674 case A_CNF_MEDIA_AUTO: media = IFM_ETHER|IFM_AUTO; break;
675 case A_CNF_MEDIA_10B_T: media = IFM_ETHER|IFM_10_T; break;
676 case A_CNF_MEDIA_10B_2: media = IFM_ETHER|IFM_10_2; break;
677 case A_CNF_MEDIA_AUI: media = IFM_ETHER|IFM_10_5; break;
678 default: device_printf(dev, "adapter has no media\n");
680 ifmedia_set(&sc->media, media);
681 cs_mediaset(sc, media);
683 ether_ifattach(ifp, sc->arpcom.ac_enaddr, NULL);
685 ifq_set_cpuid(&ifp->if_snd, rman_get_cpuid(sc->irq_res));
687 error = bus_setup_intr(dev, sc->irq_res, INTR_MPSAFE,
688 csintr, sc, &sc->irq_handle,
691 device_printf(dev, "Couldn't set up irq");
704 cs_detach(device_t dev)
706 struct cs_softc *sc = device_get_softc(dev);
707 struct ifnet *ifp = &sc->arpcom.ac_if;
709 if (device_is_attached(dev)) {
710 lwkt_serialize_enter(ifp->if_serializer);
712 bus_teardown_intr(dev, sc->irq_res, sc->irq_handle);
713 lwkt_serialize_exit(ifp->if_serializer);
715 ether_ifdetach(&sc->arpcom.ac_if);
720 * this code still in progress (DMA support)
722 if (sc->recv_ring != NULL)
723 kfree(sc->recv_ring, M_DEVBUF);
726 if (sc->buffer != NULL)
727 kfree(sc->buffer, M_DEVBUF);
728 cs_release_resources(dev);
729 ifmedia_removeall(&sc->media);
735 * Initialize the board
740 struct cs_softc *sc=(struct cs_softc *)xsc;
741 struct ifnet *ifp = &sc->arpcom.ac_if;
745 * reset whatchdog timer
751 * Hardware initialization of cs
754 /* Enable receiver and transmitter */
755 cs_writereg(sc->nic_addr, PP_LineCTL,
756 cs_readreg( sc->nic_addr, PP_LineCTL ) |
757 SERIAL_RX_ON | SERIAL_TX_ON);
759 /* Configure the receiver mode */
763 * This defines what type of frames will cause interrupts
764 * Bad frames should generate interrupts so that the driver
765 * could track statistics of discarded packets
767 rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL | RX_RUNT_ENBL |
769 if (sc->isa_config & STREAM_TRANSFER)
770 rx_cfg |= RX_STREAM_ENBL;
771 cs_writereg(sc->nic_addr, PP_RxCFG, rx_cfg);
773 cs_writereg(sc->nic_addr, PP_TxCFG, TX_LOST_CRS_ENBL |
774 TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL |
775 TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL);
777 cs_writereg(sc->nic_addr, PP_BufCFG, READY_FOR_TX_ENBL |
778 RX_MISS_COUNT_OVRFLOW_ENBL | TX_COL_COUNT_OVRFLOW_ENBL |
779 TX_UNDERRUN_ENBL /*| RX_DMA_ENBL*/);
781 /* Write MAC address into IA filter */
782 for (i=0; i<ETHER_ADDR_LEN/2; i++)
783 cs_writereg(sc->nic_addr, PP_IA+i*2,
784 sc->arpcom.ac_enaddr[i*2] |
785 (sc->arpcom.ac_enaddr[i*2+1] << 8) );
788 * Now enable everything
791 #ifdef CS_USE_64K_DMA
792 cs_writereg(sc->nic_addr, PP_BusCTL, ENABLE_IRQ | RX_DMA_SIZE_64K);
795 cs_writereg(sc->nic_addr, PP_BusCTL, ENABLE_IRQ);
798 cs_writereg(sc->nic_addr, PP_BusCTL, ENABLE_IRQ);
801 * Set running and clear output active flags
803 sc->arpcom.ac_if.if_flags |= IFF_RUNNING;
804 ifq_clr_oactive(&sc->arpcom.ac_if.if_snd);
807 * Start sending process
809 if_devstart(&sc->arpcom.ac_if);
813 * Get the packet from the board and send it to the upper layer
817 cs_get_packet(struct cs_softc *sc)
819 struct ifnet *ifp = &(sc->arpcom.ac_if);
820 int iobase = sc->nic_addr, status, length;
827 status = inw(iobase + RX_FRAME_PORT);
828 length = inw(iobase + RX_FRAME_PORT);
831 if_printf(ifp, "rcvd: stat %x, len %d\n", status, length);
834 if (!(status & RX_OK)) {
836 if_printf(ifp, "bad pkt stat %x\n", status);
838 IFNET_STAT_INC(ifp, ierrors, 1);
842 MGETHDR(m, MB_DONTWAIT, MT_DATA);
846 if (length > MHLEN) {
847 MCLGET(m, MB_DONTWAIT);
848 if (!(m->m_flags & M_EXT)) {
854 /* Initialize packet's header info */
855 m->m_pkthdr.rcvif = ifp;
856 m->m_pkthdr.len = length;
860 insw(iobase + RX_FRAME_PORT, m->m_data, (length+1)>>1);
863 for (i=0;i<length;i++)
864 kprintf(" %02x",(unsigned char)*((char *)(m->m_data+i)));
868 if (status & (RX_IA | RX_BROADCAST) ||
869 (ifp->if_flags & IFF_MULTICAST && status & RX_HASHED)) {
870 ifp->if_input(ifp, m);
872 IFNET_STAT_INC(ifp, ipackets, 1);
874 if (length==ETHER_MAX_LEN-ETHER_CRC_LEN)
875 DELAY( cs_recv_delay );
889 struct cs_softc *sc = (struct cs_softc*) arg;
890 struct ifnet *ifp = &(sc->arpcom.ac_if);
894 if_printf(ifp, "Interrupt.\n");
897 while ((status=cs_readword(sc->nic_addr, ISQ_PORT))) {
900 if_printf(ifp, "from ISQ: %04x\n", status);
903 switch (status & ISQ_EVENT_MASK) {
904 case ISQ_RECEIVER_EVENT:
908 case ISQ_TRANSMITTER_EVENT:
910 IFNET_STAT_INC(ifp, opackets, 1);
912 IFNET_STAT_INC(ifp, oerrors, 1);
913 ifq_clr_oactive(&ifp->if_snd);
917 case ISQ_BUFFER_EVENT:
918 if (status & READY_FOR_TX) {
919 ifq_clr_oactive(&ifp->if_snd);
923 if (status & TX_UNDERRUN) {
924 ifq_clr_oactive(&ifp->if_snd);
926 IFNET_STAT_INC(ifp, oerrors, 1);
930 case ISQ_RX_MISS_EVENT:
931 IFNET_STAT_INC(ifp, ierrors, (status>>6));
934 case ISQ_TX_COL_EVENT:
935 IFNET_STAT_INC(ifp, collisions, (status>>6));
940 if (!ifq_is_oactive(&ifp->if_snd))
945 * Save the data in buffer
949 cs_write_mbufs( struct cs_softc *sc, struct mbuf *m )
953 unsigned char *data, *buf;
955 for (mp=m, buf=sc->buffer, sc->buf_len=0; mp != NULL; mp=mp->m_next) {
965 * Find actual data address
967 data = mtod(mp, caddr_t);
969 bcopy((caddr_t) data, (caddr_t) buf, len);
977 cs_xmit_buf( struct cs_softc *sc )
979 outsw(sc->nic_addr+TX_FRAME_PORT, sc->buffer, (sc->buf_len+1)>>1);
984 cs_start(struct ifnet *ifp, struct ifaltq_subque *ifsq)
988 struct cs_softc *sc = ifp->if_softc;
990 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq);
994 length = sc->buf_len;
996 m = ifq_dequeue(&ifp->if_snd, NULL);
1002 for (length=0, mp=m; mp != NULL; mp=mp->m_next)
1003 length += mp->m_len;
1005 /* Skip zero-length packets */
1011 cs_write_mbufs(sc, m);
1019 * Issue a SEND command
1021 outw(sc->nic_addr+TX_CMD_PORT, sc->send_cmd);
1022 outw(sc->nic_addr+TX_LEN_PORT, length );
1025 * If there's no free space in the buffer then leave
1026 * this packet for the next time: indicate output active
1029 if (!(cs_readreg(sc->nic_addr, PP_BusST) & READY_FOR_TX_NOW)) {
1030 ifp->if_timer = sc->buf_len;
1031 ifq_set_oactive(&ifp->if_snd);
1038 * Set the watchdog timer in case we never hear
1039 * from board again. (I don't know about correct
1040 * value for this timeout)
1042 ifp->if_timer = length;
1044 ifq_set_oactive(&ifp->if_snd);
1050 * Stop everything on the interface
1053 cs_stop(struct cs_softc *sc)
1055 cs_writereg(sc->nic_addr, PP_RxCFG, 0);
1056 cs_writereg(sc->nic_addr, PP_TxCFG, 0);
1057 cs_writereg(sc->nic_addr, PP_BufCFG, 0);
1058 cs_writereg(sc->nic_addr, PP_BusCTL, 0);
1060 sc->arpcom.ac_if.if_flags &= ~IFF_RUNNING;
1061 ifq_clr_oactive(&sc->arpcom.ac_if.if_snd);
1062 sc->arpcom.ac_if.if_timer = 0;
1066 * Reset the interface
1069 cs_reset(struct cs_softc *sc)
1076 cs_setmode(struct cs_softc *sc)
1078 struct ifnet *ifp = &(sc->arpcom.ac_if);
1081 /* Stop the receiver while changing filters */
1082 cs_writereg(sc->nic_addr, PP_LineCTL,
1083 cs_readreg(sc->nic_addr, PP_LineCTL) & ~SERIAL_RX_ON);
1085 if (ifp->if_flags & IFF_PROMISC) {
1086 /* Turn on promiscuous mode. */
1087 rx_ctl = RX_OK_ACCEPT | RX_PROM_ACCEPT;
1089 if (ifp->if_flags & IFF_MULTICAST) {
1090 /* Allow receiving frames with multicast addresses */
1091 rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
1092 RX_OK_ACCEPT | RX_MULTCAST_ACCEPT;
1094 * Here the reconfiguration of chip's multicast
1095 * filters should be done but I've no idea about
1096 * hash transformation in this chip. If you can
1097 * add this code or describe me the transformation
1102 * Receive only good frames addressed for us and
1105 rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT |
1110 /* Set up the filter */
1111 cs_writereg(sc->nic_addr, PP_RxCTL, RX_DEF_ACCEPT | rx_ctl);
1113 /* Turn on receiver */
1114 cs_writereg(sc->nic_addr, PP_LineCTL,
1115 cs_readreg(sc->nic_addr, PP_LineCTL) | SERIAL_RX_ON);
1119 cs_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr)
1121 struct cs_softc *sc=ifp->if_softc;
1122 struct ifreq *ifr = (struct ifreq *)data;
1126 if_printf(ifp, "ioctl(%lx)\n", command);
1132 * Switch interface state between "running" and
1133 * "stopped", reflecting the UP flag.
1135 if (sc->arpcom.ac_if.if_flags & IFF_UP) {
1136 if ((sc->arpcom.ac_if.if_flags & IFF_RUNNING)==0) {
1140 if ((sc->arpcom.ac_if.if_flags & IFF_RUNNING)!=0) {
1145 * Promiscuous and/or multicast flags may have changed,
1146 * so reprogram the multicast filter and/or receive mode.
1148 * See note about multicasts in cs_setmode
1156 * Multicast list has changed; set the hardware filter
1159 * See note about multicasts in cs_setmode
1167 error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
1170 error = ether_ioctl(ifp, command, data);
1178 * Device timeout/watchdog routine. Entered if the device neglects to
1179 * generate an interrupt after a transmit has been started on it.
1182 cs_watchdog(struct ifnet *ifp)
1184 struct cs_softc *sc = ifp->if_softc;
1186 IFNET_STAT_INC(ifp, oerrors, 1);
1187 log(LOG_ERR, "%s: device timeout\n", ifp->if_xname);
1189 /* Reset the interface */
1190 if (ifp->if_flags & IFF_UP)
1197 cs_mediachange(struct ifnet *ifp)
1199 struct cs_softc *sc = ifp->if_softc;
1200 struct ifmedia *ifm = &sc->media;
1202 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
1205 return cs_mediaset(sc, ifm->ifm_media);
1209 cs_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr)
1212 struct cs_softc *sc = ifp->if_softc;
1214 ifmr->ifm_active = IFM_ETHER;
1215 line_status = cs_readreg(sc->nic_addr, PP_LineST);
1216 if (line_status & TENBASET_ON) {
1217 ifmr->ifm_active |= IFM_10_T;
1218 if (sc->chip_type != CS8900) {
1219 if (cs_readreg(sc->nic_addr, PP_AutoNegST) & FDX_ACTIVE)
1220 ifmr->ifm_active |= IFM_FDX;
1221 if (cs_readreg(sc->nic_addr, PP_AutoNegST) & HDX_ACTIVE)
1222 ifmr->ifm_active |= IFM_HDX;
1224 ifmr->ifm_status = IFM_AVALID;
1225 if (line_status & LINK_OK)
1226 ifmr->ifm_status |= IFM_ACTIVE;
1228 if (line_status & AUI_ON) {
1229 cs_writereg(sc->nic_addr, PP_SelfCTL,
1230 cs_readreg(sc->nic_addr, PP_SelfCTL) |
1232 if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0)^
1233 (cs_readreg(sc->nic_addr, PP_SelfCTL)&HCB1))
1234 ifmr->ifm_active |= IFM_10_2;
1236 ifmr->ifm_active |= IFM_10_5;
1242 cs_mediaset(struct cs_softc *sc, int media)
1246 /* Stop the receiver & transmitter */
1247 cs_writereg(sc->nic_addr, PP_LineCTL,
1248 cs_readreg(sc->nic_addr, PP_LineCTL) &
1249 ~(SERIAL_RX_ON | SERIAL_TX_ON));
1252 if_printf(&sc->arpcom.ac_if, "cs_setmedia(%x)\n", media);
1255 switch (IFM_SUBTYPE(media)) {
1258 if ((error=enable_tp(sc))==0)
1259 error = cs_duplex_auto(sc);
1260 else if ((error=enable_bnc(sc)) != 0)
1261 error = enable_aui(sc);
1264 if ((error=enable_tp(sc)) != 0)
1266 if (media & IFM_FDX)
1268 else if (media & IFM_HDX)
1271 error = cs_duplex_auto(sc);
1274 error = enable_bnc(sc);
1277 error = enable_aui(sc);
1282 * Turn the transmitter & receiver back on
1284 cs_writereg(sc->nic_addr, PP_LineCTL,
1285 cs_readreg( sc->nic_addr, PP_LineCTL ) |
1286 SERIAL_RX_ON | SERIAL_TX_ON);