if_cs.c revision 140927
1139749Simp/*- 237785Smsmith * Copyright (c) 1997,1998 Maxim Bolotin and Oleg Sharoiko. 337785Smsmith * All rights reserved. 437785Smsmith * 537785Smsmith * Redistribution and use in source and binary forms, with or without 637785Smsmith * modification, are permitted provided that the following conditions 737785Smsmith * are met: 837785Smsmith * 1. Redistributions of source code must retain the above copyright 937785Smsmith * notice unmodified, this list of conditions, and the following 1037785Smsmith * disclaimer. 1137785Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1237785Smsmith * notice, this list of conditions and the following disclaimer in the 1337785Smsmith * documentation and/or other materials provided with the distribution. 1437785Smsmith * 1537785Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1637785Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1737785Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1837785Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1937785Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2037785Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2137785Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2237785Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2337785Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2437785Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2537785Smsmith * SUCH DAMAGE. 2637785Smsmith * 2737785Smsmith */ 2837785Smsmith 29119418Sobrien#include <sys/cdefs.h> 30119418Sobrien__FBSDID("$FreeBSD: head/sys/dev/cs/if_cs.c 140927 2005-01-28 06:45:42Z imp $"); 31119418Sobrien 3237785Smsmith/* 3337785Smsmith * 3437785Smsmith * Device driver for Crystal Semiconductor CS8920 based ethernet 3537785Smsmith * adapters. By Maxim Bolotin and Oleg Sharoiko, 27-April-1997 3637785Smsmith */ 3737785Smsmith 3858816Simp/* 3958816Simp#define CS_DEBUG 4058816Simp */ 4137785Smsmith 4237785Smsmith#include <sys/param.h> 4337785Smsmith#include <sys/systm.h> 4437785Smsmith#include <sys/malloc.h> 4558816Simp#include <sys/mbuf.h> 4658816Simp#include <sys/socket.h> 4737785Smsmith#include <sys/sockio.h> 4837785Smsmith#include <sys/kernel.h> 4938592Smsmith#include <sys/sysctl.h> 5037785Smsmith#include <sys/syslog.h> 5137785Smsmith 5258816Simp#include <sys/module.h> 5358816Simp#include <sys/bus.h> 5458816Simp#include <machine/bus.h> 5558816Simp#include <sys/rman.h> 5658816Simp#include <machine/resource.h> 5758816Simp 5837785Smsmith#include <net/if.h> 5937785Smsmith#include <net/if_arp.h> 6037785Smsmith#include <net/if_media.h> 6137785Smsmith#include <net/ethernet.h> 6237785Smsmith#include <net/bpf.h> 6337785Smsmith 6472940Simp#include <dev/cs/if_csvar.h> 6558816Simp#include <dev/cs/if_csreg.h> 6637785Smsmith 6737785Smsmith#ifdef CS_USE_64K_DMA 6837785Smsmith#define CS_DMA_BUFFER_SIZE 65536 6937785Smsmith#else 7037785Smsmith#define CS_DMA_BUFFER_SIZE 16384 7137785Smsmith#endif 7237785Smsmith 73122024Simpstatic void cs_init(void *); 74122024Simpstatic int cs_ioctl(struct ifnet *, u_long, caddr_t); 75122024Simpstatic void cs_start(struct ifnet *); 76122024Simpstatic void cs_stop(struct cs_softc *); 77122024Simpstatic void cs_reset(struct cs_softc *); 78122024Simpstatic void cs_watchdog(struct ifnet *); 7938592Smsmith 80122024Simpstatic int cs_mediachange(struct ifnet *); 81122024Simpstatic void cs_mediastatus(struct ifnet *, struct ifmediareq *); 82122024Simpstatic int cs_mediaset(struct cs_softc *, int); 8358816Simp 8437785Smsmithstatic void cs_write_mbufs(struct cs_softc*, struct mbuf*); 8537785Smsmithstatic void cs_xmit_buf(struct cs_softc*); 8637785Smsmithstatic int cs_get_packet(struct cs_softc*); 8737785Smsmithstatic void cs_setmode(struct cs_softc*); 8837785Smsmith 89122024Simpstatic int get_eeprom_data(struct cs_softc *sc, int, int, uint16_t *); 90122024Simpstatic int get_eeprom_cksum(int, int, uint16_t *); 9137785Smsmithstatic int wait_eeprom_ready( struct cs_softc *); 9237785Smsmithstatic void control_dc_dc( struct cs_softc *, int ); 9337785Smsmithstatic int send_test_pkt( struct cs_softc * ); 9437785Smsmithstatic int enable_tp(struct cs_softc *); 9537785Smsmithstatic int enable_aui(struct cs_softc *); 9637785Smsmithstatic int enable_bnc(struct cs_softc *); 9737785Smsmithstatic int cs_duplex_auto(struct cs_softc *); 9837785Smsmith 9971316Simpdevclass_t cs_devclass; 10037785Smsmith 101122024Simp/* sysctl vars */ 102122024SimpSYSCTL_NODE(_hw, OID_AUTO, cs, CTLFLAG_RD, 0, "cs device parameters"); 103122024Simp 104122024Simpint cs_debug = 0; 105122024SimpTUNABLE_INT("hw.cs.debug", &cs_debug); 106122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, debug, CTLFLAG_RW, 107122024Simp &cs_debug, 0, 108122024Simp "cs debug"); 109122024Simp 110122024Simpint cs_ignore_cksum_failure = 0; 111122024SimpTUNABLE_INT("hw.cs.ignore_checksum_failure", &cs_ignore_cksum_failure); 112122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, ignore_checksum_failure, CTLFLAG_RW, 113122024Simp &cs_ignore_cksum_failure, 0, 114122024Simp "ignore checksum errors in cs card EEPROM"); 115122024Simp 116122024Simpstatic int cs_recv_delay = 570; 117140925SimpTUNABLE_INT("hw.cs.recv_delay", &cs_recv_delay); 118122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, recv_delay, CTLFLAG_RW, &cs_recv_delay, 570, ""); 119122024Simp 12037785Smsmithstatic int 121122024Simpget_eeprom_data(struct cs_softc *sc, int off, int len, uint16_t *buffer) 12237785Smsmith{ 12337785Smsmith int i; 12437785Smsmith 12537785Smsmith#ifdef CS_DEBUG 126122024Simp printf(CS_NAME":EEPROM data from %x for %x:\n", off, len); 12737785Smsmith#endif 12837785Smsmith 129122024Simp for (i=0; i < len; i++) { 130122024Simp if (wait_eeprom_ready(sc) < 0) 131122024Simp return (-1); 13237785Smsmith /* Send command to EEPROM to read */ 13372940Simp cs_writereg(sc, PP_EECMD, (off + i) | EEPROM_READ_CMD); 134122024Simp if (wait_eeprom_ready(sc) < 0) 13572940Simp return (-1); 13672940Simp buffer[i] = cs_readreg(sc, PP_EEData); 13737785Smsmith 13837785Smsmith#ifdef CS_DEBUG 13937785Smsmith printf("%02x %02x ",(unsigned char)buffer[i], 140122024Simp (unsigned char)buffer[i] >> 8); 14137785Smsmith#endif 14237785Smsmith } 14337785Smsmith 14437785Smsmith#ifdef CS_DEBUG 14537785Smsmith printf("\n"); 14637785Smsmith#endif 14772940Simp return (0); 14837785Smsmith} 14937785Smsmith 15037785Smsmithstatic int 151122024Simpget_eeprom_cksum(int off, int len, uint16_t *buffer) 15237785Smsmith{ 153122024Simp int i; 154122024Simp uint16_t cksum=0; 15537785Smsmith 156122024Simp for (i = 0; i < len; i++) 157122024Simp cksum += buffer[i]; 15837785Smsmith cksum &= 0xffff; 15937785Smsmith if (cksum==0) 160122024Simp return (0); 161122024Simp if (cs_ignore_cksum_failure) { 162122024Simp printf(CS_NAME": checksum mismatch, ignoring\n"); 163122024Simp return (0); 164122024Simp } 165122024Simp return (-1); 16637785Smsmith} 16737785Smsmith 16837785Smsmithstatic int 16937785Smsmithwait_eeprom_ready(struct cs_softc *sc) 17037785Smsmith{ 171122024Simp DELAY(30000); /* XXX should we do some checks here ? */ 17237785Smsmith return 0; 17337785Smsmith} 17437785Smsmith 17537785Smsmithstatic void 17637785Smsmithcontrol_dc_dc(struct cs_softc *sc, int on_not_off) 17737785Smsmith{ 17837785Smsmith unsigned int self_control = HCB1_ENBL; 17937785Smsmith 18037785Smsmith if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0) ^ on_not_off) 18137785Smsmith self_control |= HCB1; 18237785Smsmith else 18337785Smsmith self_control &= ~HCB1; 18472940Simp cs_writereg(sc, PP_SelfCTL, self_control); 18537785Smsmith 186122024Simp DELAY(500000); 18737785Smsmith} 18837785Smsmith 18937785Smsmith 19037785Smsmithstatic int 19137785Smsmithcs_duplex_auto(struct cs_softc *sc) 19237785Smsmith{ 193140927Simp int i, error=0; 194140927Simp 19572940Simp cs_writereg(sc, PP_AutoNegCTL, 19672940Simp RE_NEG_NOW | ALLOW_FDX | AUTO_NEG_ENABLE); 197140927Simp for (i=0; cs_readreg(sc, PP_AutoNegST) & AUTO_NEG_BUSY; i++) { 198140927Simp if (i > 40000) { 199140927Simp if_printf(&sc->arpcom.ac_if, 200140927Simp "full/half duplex auto negotiation timeout\n"); 20137785Smsmith error = ETIMEDOUT; 202140927Simp break; 203140927Simp } 204140927Simp DELAY(1000); 205140927Simp } 206140927Simp DELAY(1000000); 20737785Smsmith return error; 20837785Smsmith} 20937785Smsmith 21037785Smsmithstatic int 21137785Smsmithenable_tp(struct cs_softc *sc) 21237785Smsmith{ 21337785Smsmith 21472940Simp cs_writereg(sc, PP_LineCTL, sc->line_ctl & ~AUI_ONLY); 21537785Smsmith control_dc_dc(sc, 0); 21637785Smsmith DELAY( 150000 ); 21737785Smsmith 21872940Simp if ((cs_readreg(sc, PP_LineST) & LINK_OK)==0) { 219104252Sbrooks if_printf(&sc->arpcom.ac_if, "failed to enable TP\n"); 220140927Simp return EINVAL; 22137785Smsmith } 22237785Smsmith 22337785Smsmith return 0; 22437785Smsmith} 22537785Smsmith 22637785Smsmith/* 22737785Smsmith * XXX This was rewritten from Linux driver without any tests. 228140927Simp */ 22937785Smsmithstatic int 23037785Smsmithsend_test_pkt(struct cs_softc *sc) 23137785Smsmith{ 23237785Smsmith char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0, 23337785Smsmith 0, 46, /* A 46 in network order */ 23437785Smsmith 0, 0, /* DSAP=0 & SSAP=0 fields */ 23537785Smsmith 0xf3, 0 /* Control (Test Req + P bit set) */ }; 23638305Smsmith int i; 23738305Smsmith u_char ether_address_backup[ETHER_ADDR_LEN]; 23837785Smsmith 239122024Simp for (i = 0; i < ETHER_ADDR_LEN; i++) 24038305Smsmith ether_address_backup[i] = sc->arpcom.ac_enaddr[i]; 24138305Smsmith 24272940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_TX_ON); 24372940Simp bcopy(test_packet, sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 24472940Simp bcopy(test_packet+ETHER_ADDR_LEN, 24572940Simp sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); 24672940Simp cs_outw(sc, TX_CMD_PORT, sc->send_cmd); 24772940Simp cs_outw(sc, TX_LEN_PORT, sizeof(test_packet)); 24837785Smsmith 24937785Smsmith /* Wait for chip to allocate memory */ 25037785Smsmith DELAY(50000); 25172940Simp if (!(cs_readreg(sc, PP_BusST) & READY_FOR_TX_NOW)) { 252122024Simp for (i = 0; i < ETHER_ADDR_LEN; i++) 25338305Smsmith sc->arpcom.ac_enaddr[i] = ether_address_backup[i]; 25437785Smsmith return 0; 25538305Smsmith } 25637785Smsmith 25737785Smsmith outsw(sc->nic_addr + TX_FRAME_PORT, test_packet, sizeof(test_packet)); 25837785Smsmith 25937785Smsmith DELAY(30000); 26037785Smsmith 261122024Simp for (i = 0; i < ETHER_ADDR_LEN; i++) 262122024Simp sc->arpcom.ac_enaddr[i] = ether_address_backup[i]; 263122024Simp if ((cs_readreg(sc, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) 26437785Smsmith return 1; 26537785Smsmith return 0; 26637785Smsmith} 26737785Smsmith 26837785Smsmith/* 26937785Smsmith * XXX This was rewritten from Linux driver without any tests. 27037785Smsmith */ 27137785Smsmithstatic int 27237785Smsmithenable_aui(struct cs_softc *sc) 27337785Smsmith{ 27437785Smsmith 27537785Smsmith control_dc_dc(sc, 0); 27672940Simp cs_writereg(sc, PP_LineCTL, 27772940Simp (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY); 27837785Smsmith 27937785Smsmith if (!send_test_pkt(sc)) { 280104252Sbrooks if_printf(&sc->arpcom.ac_if, "failed to enable AUI\n"); 28137785Smsmith return EINVAL; 282140927Simp } 283140927Simp return 0; 28437785Smsmith} 28537785Smsmith 28637785Smsmith/* 28737785Smsmith * XXX This was rewritten from Linux driver without any tests. 288140927Simp */ 28937785Smsmithstatic int 29037785Smsmithenable_bnc(struct cs_softc *sc) 29137785Smsmith{ 29237785Smsmith 29337785Smsmith control_dc_dc(sc, 1); 29472940Simp cs_writereg(sc, PP_LineCTL, 29572940Simp (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY); 29637785Smsmith 29737785Smsmith if (!send_test_pkt(sc)) { 298104252Sbrooks if_printf(&sc->arpcom.ac_if, "failed to enable BNC\n"); 29937785Smsmith return EINVAL; 300140927Simp } 301140927Simp return 0; 30237785Smsmith} 30337785Smsmith 30471316Simpint 30558816Simpcs_cs89x0_probe(device_t dev) 30637785Smsmith{ 30758816Simp int i; 30858816Simp int error; 30958816Simp u_long irq, junk; 31058816Simp struct cs_softc *sc = device_get_softc(dev); 31137785Smsmith unsigned rev_type = 0; 312122024Simp uint16_t id; 31358816Simp char chip_revision; 314122024Simp uint16_t eeprom_buff[CHKSUM_LEN]; 31537785Smsmith int chip_type, pp_isaint, pp_isadma; 31637785Smsmith 31758816Simp error = cs_alloc_port(dev, 0, CS_89x0_IO_PORTS); 31858816Simp if (error) 31958816Simp return (error); 32058816Simp 32172940Simp sc->nic_addr = rman_get_start(sc->port_res); 32258816Simp 32372940Simp if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) { 32437785Smsmith /* Chip not detected. Let's try to reset it */ 32537785Smsmith if (bootverbose) 32658816Simp device_printf(dev, "trying to reset the chip.\n"); 32772940Simp cs_outw(sc, ADD_PORT, PP_SelfCTL); 32872940Simp i = cs_inw(sc, DATA_PORT); 32972940Simp cs_outw(sc, ADD_PORT, PP_SelfCTL); 33072940Simp cs_outw(sc, DATA_PORT, i | POWER_ON_RESET); 33172940Simp if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) 33258816Simp return (ENXIO); 33337785Smsmith } 33437785Smsmith 33572940Simp for (i = 0; i < 10000; i++) { 33672940Simp id = cs_readreg(sc, PP_ChipID); 33772940Simp if (id == CHIP_EISA_ID_SIG) 33872940Simp break; 33972940Simp } 34072940Simp if (i == 10000) 34158816Simp return (ENXIO); 34237785Smsmith 34372940Simp rev_type = cs_readreg(sc, PRODUCT_ID_ADD); 34437785Smsmith chip_type = rev_type & ~REVISON_BITS; 34537785Smsmith chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; 34637785Smsmith 34737785Smsmith sc->chip_type = chip_type; 34858816Simp 34937785Smsmith if(chip_type==CS8900) { 35037785Smsmith pp_isaint = PP_CS8900_ISAINT; 35137785Smsmith pp_isadma = PP_CS8900_ISADMA; 35237785Smsmith sc->send_cmd = TX_CS8900_AFTER_ALL; 35337785Smsmith } else { 35437785Smsmith pp_isaint = PP_CS8920_ISAINT; 35537785Smsmith pp_isadma = PP_CS8920_ISADMA; 35637785Smsmith sc->send_cmd = TX_CS8920_AFTER_ALL; 35737785Smsmith } 35837785Smsmith 35937785Smsmith /* 360140927Simp * Clear some fields so that fail of EEPROM will left them clean 361140927Simp */ 362140927Simp sc->auto_neg_cnf = 0; 363140927Simp sc->adapter_cnf = 0; 364140927Simp sc->isa_config = 0; 365140927Simp 366140927Simp /* 36758816Simp * If no interrupt specified (or "?"), use what the board tells us. 36837785Smsmith */ 36958816Simp error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk); 37058816Simp 37158816Simp /* 37258816Simp * Get data from EEPROM 37358816Simp */ 37472940Simp if((cs_readreg(sc, PP_SelfST) & EEPROM_PRESENT) == 0) { 37558816Simp device_printf(dev, "No EEPROM, assuming defaults.\n"); 37637785Smsmith } else { 37737785Smsmith if (get_eeprom_data(sc,START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) { 37858816Simp device_printf(dev, "EEPROM read failed, " 37958816Simp "assuming defaults.\n"); 38037785Smsmith } else { 38137785Smsmith if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) { 38258816Simp device_printf(dev, "EEPROM cheksum bad, " 38358816Simp "assuming defaults.\n"); 38437785Smsmith } else { 385140927Simp sc->auto_neg_cnf = 386140927Simp eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; 387140927Simp sc->adapter_cnf = 388140927Simp eeprom_buff[ADAPTER_CNF_OFFSET/2]; 389140927Simp sc->isa_config = 390140927Simp eeprom_buff[ISA_CNF_OFFSET/2]; 391140927Simp 392140927Simp for (i=0; i<ETHER_ADDR_LEN/2; i++) { 393140927Simp sc->arpcom.ac_enaddr[i*2]= 394140927Simp eeprom_buff[i]; 395140927Simp sc->arpcom.ac_enaddr[i*2+1]= 396140927Simp eeprom_buff[i] >> 8; 397140927Simp } 39837785Smsmith 399140927Simp /* 400140927Simp * If no interrupt specified, 401140927Simp * use what the board tells us. 402140927Simp */ 40358816Simp if (error) { 40458816Simp irq = sc->isa_config & INT_NO_MASK; 405140927Simp if (chip_type==CS8900) { 406140927Simp switch(irq) { 407140927Simp case 0: 40858816Simp irq=10; 40958816Simp error=0; 41058816Simp break; 411140927Simp case 1: 41258816Simp irq=11; 41358816Simp error=0; 41458816Simp break; 415140927Simp case 2: 41658816Simp irq=12; 41758816Simp error=0; 41858816Simp break; 419140927Simp case 3: 42058816Simp irq=5; 42158816Simp error=0; 42258816Simp break; 42358816Simp default: 42458816Simp device_printf(dev, "invalid irq in EEPROM.\n"); 42558816Simp error=EINVAL; 426140927Simp } 42758816Simp } else { 42858816Simp if (irq>CS8920_NO_INTS) { 42958816Simp device_printf(dev, "invalid irq in EEPROM.\n"); 43058816Simp error=EINVAL; 43158816Simp } else { 43258816Simp error=0; 43337785Smsmith } 43437785Smsmith } 43558816Simp 43658816Simp if (!error) 43758816Simp bus_set_resource(dev, SYS_RES_IRQ, 0, 43858816Simp irq, 1); 43958816Simp } 44037785Smsmith } 441140927Simp } 442140927Simp } 44337785Smsmith 44458816Simp if (!error) { 445140927Simp if (chip_type == CS8900) { 44637785Smsmith switch(irq) { 44758816Simp case 5: 44858816Simp irq = 3; 44958816Simp break; 45058816Simp case 10: 45158816Simp irq = 0; 45258816Simp break; 45358816Simp case 11: 45458816Simp irq = 1; 45558816Simp break; 45658816Simp case 12: 45758816Simp irq = 2; 45858816Simp break; 45958816Simp default: 46058816Simp error=EINVAL; 46137785Smsmith } 462140927Simp } else { 463140927Simp if (irq > CS8920_NO_INTS) { 464140927Simp error = EINVAL; 465140927Simp } 466140927Simp } 46758816Simp } 46858816Simp 46958816Simp if (!error) { 470140926Simp if (!(sc->flags & CS_NO_IRQ)) 471140926Simp cs_writereg(sc, pp_isaint, irq); 47237785Smsmith } else { 47358816Simp device_printf(dev, "Unknown or invalid irq\n"); 474140927Simp return (ENXIO); 475140927Simp } 476140927Simp 477140927Simp /* 478140927Simp * Temporary disabled 479140927Simp * 480140927Simp if (drq>0) 48172940Simp cs_writereg(sc, pp_isadma, drq); 48237785Smsmith else { 483104252Sbrooks device_printf(dev, "incorrect drq\n",); 48437785Smsmith return 0; 48537785Smsmith } 486140927Simp */ 48737785Smsmith 48837785Smsmith if (bootverbose) 48958816Simp device_printf(dev, "CS89%c0%s rev %c media%s%s%s\n", 49037785Smsmith chip_type==CS8900 ? '0' : '2', 49137785Smsmith chip_type==CS8920M ? "M" : "", 49237785Smsmith chip_revision, 49337785Smsmith (sc->adapter_cnf & A_CNF_10B_T) ? " TP" : "", 49437785Smsmith (sc->adapter_cnf & A_CNF_AUI) ? " AUI" : "", 49558816Simp (sc->adapter_cnf & A_CNF_10B_2) ? " BNC" : ""); 49637785Smsmith 497140927Simp if ((sc->adapter_cnf & A_CNF_EXTND_10B_2) && 498140927Simp (sc->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) 499140927Simp sc->line_ctl = LOW_RX_SQUELCH; 500140927Simp else 501140927Simp sc->line_ctl = 0; 50237785Smsmith 50358816Simp return 0; 50437785Smsmith} 50537785Smsmith 50637785Smsmith/* 50758816Simp * Allocate a port resource with the given resource id. 50858816Simp */ 50958816Simpint cs_alloc_port(device_t dev, int rid, int size) 51058816Simp{ 511140927Simp struct cs_softc *sc = device_get_softc(dev); 512140927Simp struct resource *res; 51358816Simp 514140927Simp res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 515140927Simp 0ul, ~0ul, size, RF_ACTIVE); 516140927Simp if (res) { 517140927Simp sc->port_rid = rid; 518140927Simp sc->port_res = res; 519140927Simp sc->port_used = size; 520140927Simp return (0); 521140927Simp } else { 522140927Simp return (ENOENT); 523140927Simp } 52458816Simp} 52558816Simp 52658816Simp/* 52758816Simp * Allocate a memory resource with the given resource id. 52858816Simp */ 52958816Simpint cs_alloc_memory(device_t dev, int rid, int size) 53058816Simp{ 531140927Simp struct cs_softc *sc = device_get_softc(dev); 532140927Simp struct resource *res; 53358816Simp 534140927Simp res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 535140927Simp 0ul, ~0ul, size, RF_ACTIVE); 536140927Simp if (res) { 537140927Simp sc->mem_rid = rid; 538140927Simp sc->mem_res = res; 539140927Simp sc->mem_used = size; 540140927Simp return (0); 541140927Simp } else { 542140927Simp return (ENOENT); 543140927Simp } 54458816Simp} 54558816Simp 54658816Simp/* 54758816Simp * Allocate an irq resource with the given resource id. 54858816Simp */ 54958816Simpint cs_alloc_irq(device_t dev, int rid, int flags) 55058816Simp{ 551140927Simp struct cs_softc *sc = device_get_softc(dev); 552140927Simp struct resource *res; 55358816Simp 554140927Simp res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 555140927Simp (RF_ACTIVE | flags)); 556140927Simp if (res) { 557140927Simp sc->irq_rid = rid; 558140927Simp sc->irq_res = res; 559140927Simp return (0); 560140927Simp } else { 561140927Simp return (ENOENT); 562140927Simp } 56358816Simp} 56458816Simp 56558816Simp/* 56658816Simp * Release all resources 56758816Simp */ 56858816Simpvoid cs_release_resources(device_t dev) 56958816Simp{ 570140927Simp struct cs_softc *sc = device_get_softc(dev); 57158816Simp 572140927Simp if (sc->port_res) { 573140927Simp bus_release_resource(dev, SYS_RES_IOPORT, 574140927Simp sc->port_rid, sc->port_res); 575140927Simp sc->port_res = 0; 576140927Simp } 577140927Simp if (sc->mem_res) { 578140927Simp bus_release_resource(dev, SYS_RES_MEMORY, 579140927Simp sc->mem_rid, sc->mem_res); 580140927Simp sc->mem_res = 0; 581140927Simp } 582140927Simp if (sc->irq_res) { 583140927Simp bus_release_resource(dev, SYS_RES_IRQ, 584140927Simp sc->irq_rid, sc->irq_res); 585140927Simp sc->irq_res = 0; 586140927Simp } 58758816Simp} 58858816Simp 58958816Simp/* 59037785Smsmith * Install the interface into kernel networking data structures 59137785Smsmith */ 59271316Simpint 593121816Sbrookscs_attach(device_t dev) 59437785Smsmith{ 595140927Simp int media=0; 596121816Sbrooks struct cs_softc *sc = device_get_softc(dev);; 59737785Smsmith struct ifnet *ifp = &(sc->arpcom.ac_if); 59837785Smsmith 59958816Simp cs_stop( sc ); 60058816Simp 601121752Sbrooks ifp->if_softc=sc; 602121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 603121752Sbrooks ifp->if_start=cs_start; 604121752Sbrooks ifp->if_ioctl=cs_ioctl; 605121752Sbrooks ifp->if_watchdog=cs_watchdog; 606121752Sbrooks ifp->if_init=cs_init; 607121752Sbrooks ifp->if_snd.ifq_maxlen= IFQ_MAXLEN; 608121752Sbrooks /* 609121752Sbrooks * MIB DATA 610121752Sbrooks */ 611121752Sbrooks /* 612121752Sbrooks ifp->if_linkmib=&sc->mibdata; 613121752Sbrooks ifp->if_linkmiblen=sizeof sc->mibdata; 614121752Sbrooks */ 61537785Smsmith 616133681Srwatson ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST | 617133681Srwatson IFF_NEEDSGIANT); 61837785Smsmith 619121752Sbrooks /* 620121752Sbrooks * this code still in progress (DMA support) 621121752Sbrooks * 62237785Smsmith 623121752Sbrooks sc->recv_ring=malloc(CS_DMA_BUFFER_SIZE<<1, M_DEVBUF, M_NOWAIT); 624121752Sbrooks if (sc->recv_ring == NULL) { 625121816Sbrooks log(LOG_ERR, 626121816Sbrooks "%s: Couldn't allocate memory for NIC\n", ifp->if_xname); 627121752Sbrooks return(0); 628121752Sbrooks } 629121752Sbrooks if ((sc->recv_ring-(sc->recv_ring & 0x1FFFF)) 630121752Sbrooks < (128*1024-CS_DMA_BUFFER_SIZE)) 631121752Sbrooks sc->recv_ring+=16*1024; 63237785Smsmith 633121752Sbrooks */ 63437785Smsmith 635121752Sbrooks sc->buffer=malloc(ETHER_MAX_LEN-ETHER_CRC_LEN,M_DEVBUF,M_NOWAIT); 636121752Sbrooks if (sc->buffer == NULL) { 637121752Sbrooks if_printf(ifp, "Couldn't allocate memory for NIC\n"); 638121752Sbrooks return(0); 639121752Sbrooks } 64037785Smsmith 641121752Sbrooks /* 642121752Sbrooks * Initialize the media structures. 643121752Sbrooks */ 644121752Sbrooks ifmedia_init(&sc->media, 0, cs_mediachange, cs_mediastatus); 64537785Smsmith 646121752Sbrooks if (sc->adapter_cnf & A_CNF_10B_T) { 647121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL); 648121752Sbrooks if (sc->chip_type != CS8900) { 649121752Sbrooks ifmedia_add(&sc->media, 650121752Sbrooks IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 651121752Sbrooks ifmedia_add(&sc->media, 652121752Sbrooks IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); 653121752Sbrooks } 654121752Sbrooks } 65537785Smsmith 656121752Sbrooks if (sc->adapter_cnf & A_CNF_10B_2) 657121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_2, 0, NULL); 65837785Smsmith 659121752Sbrooks if (sc->adapter_cnf & A_CNF_AUI) 660121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_5, 0, NULL); 66137785Smsmith 662121752Sbrooks if (sc->adapter_cnf & A_CNF_MEDIA) 663121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_AUTO, 0, NULL); 66437785Smsmith 665121752Sbrooks /* Set default media from EEPROM */ 666121752Sbrooks switch (sc->adapter_cnf & A_CNF_MEDIA_TYPE) { 667121752Sbrooks case A_CNF_MEDIA_AUTO: media = IFM_ETHER|IFM_AUTO; break; 668121752Sbrooks case A_CNF_MEDIA_10B_T: media = IFM_ETHER|IFM_10_T; break; 669121752Sbrooks case A_CNF_MEDIA_10B_2: media = IFM_ETHER|IFM_10_2; break; 670121752Sbrooks case A_CNF_MEDIA_AUI: media = IFM_ETHER|IFM_10_5; break; 671122024Simp default: 672122024Simp if_printf(ifp, "no media, assuming 10baseT\n"); 673122024Simp sc->adapter_cnf |= A_CNF_10B_T; 674122024Simp ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL); 675122024Simp if (sc->chip_type != CS8900) { 676122024Simp ifmedia_add(&sc->media, 677122024Simp IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 678122024Simp ifmedia_add(&sc->media, 679122024Simp IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); 680122024Simp } 681122024Simp media = IFM_ETHER | IFM_10_T; 682122024Simp break; 68337785Smsmith } 684121752Sbrooks ifmedia_set(&sc->media, media); 685121752Sbrooks cs_mediaset(sc, media); 68637785Smsmith 687121752Sbrooks ether_ifattach(ifp, sc->arpcom.ac_enaddr); 688121752Sbrooks 68958816Simp return (0); 69037785Smsmith} 69137785Smsmith 692140888Simpint 693140888Simpcs_detach(device_t dev) 694140888Simp{ 695140888Simp struct cs_softc *sc; 696140888Simp struct ifnet *ifp; 697140888Simp 698140888Simp sc = device_get_softc(dev); 699140888Simp ifp = &sc->arpcom.ac_if; 700140888Simp 701140888Simp cs_stop(sc); 702140888Simp ifp->if_flags &= ~IFF_RUNNING; 703140888Simp ether_ifdetach(ifp); 704140888Simp cs_release_resources(dev); 705140888Simp return (0); 706140888Simp} 707140888Simp 70837785Smsmith/* 70937785Smsmith * Initialize the board 71037785Smsmith */ 71137785Smsmithstatic void 71237785Smsmithcs_init(void *xsc) 71337785Smsmith{ 71437785Smsmith struct cs_softc *sc=(struct cs_softc *)xsc; 71537785Smsmith struct ifnet *ifp = &sc->arpcom.ac_if; 71641591Sarchie int i, s, rx_cfg; 71737785Smsmith 71837785Smsmith /* 71937785Smsmith * reset whatchdog timer 72037785Smsmith */ 72137785Smsmith ifp->if_timer=0; 72237785Smsmith sc->buf_len = 0; 72337785Smsmith 72437785Smsmith s=splimp(); 72537785Smsmith 72637785Smsmith /* 72737785Smsmith * Hardware initialization of cs 72837785Smsmith */ 72937785Smsmith 73037785Smsmith /* Enable receiver and transmitter */ 73172940Simp cs_writereg(sc, PP_LineCTL, 73272940Simp cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); 73337785Smsmith 73437785Smsmith /* Configure the receiver mode */ 73537785Smsmith cs_setmode(sc); 73637785Smsmith 73737785Smsmith /* 73837785Smsmith * This defines what type of frames will cause interrupts 73937785Smsmith * Bad frames should generate interrupts so that the driver 74037785Smsmith * could track statistics of discarded packets 74137785Smsmith */ 742140927Simp rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL | RX_RUNT_ENBL | 74337785Smsmith RX_EXTRA_DATA_ENBL; 74437785Smsmith if (sc->isa_config & STREAM_TRANSFER) 74537785Smsmith rx_cfg |= RX_STREAM_ENBL; 74672940Simp cs_writereg(sc, PP_RxCFG, rx_cfg); 74772940Simp cs_writereg(sc, PP_TxCFG, TX_LOST_CRS_ENBL | 74837785Smsmith TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL | 74937785Smsmith TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); 75072940Simp cs_writereg(sc, PP_BufCFG, READY_FOR_TX_ENBL | 75137785Smsmith RX_MISS_COUNT_OVRFLOW_ENBL | TX_COL_COUNT_OVRFLOW_ENBL | 75237785Smsmith TX_UNDERRUN_ENBL /*| RX_DMA_ENBL*/); 75337785Smsmith 754140927Simp /* Write MAC address into IA filter */ 755140927Simp for (i=0; i<ETHER_ADDR_LEN/2; i++) 756140927Simp cs_writereg(sc, PP_IA + i * 2, 75772940Simp sc->arpcom.ac_enaddr[i * 2] | 75872940Simp (sc->arpcom.ac_enaddr[i * 2 + 1] << 8) ); 75937785Smsmith 76037785Smsmith /* 76137785Smsmith * Now enable everything 76237785Smsmith */ 76337785Smsmith/* 76437785Smsmith#ifdef CS_USE_64K_DMA 76572940Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ | RX_DMA_SIZE_64K); 76672940Simp#else 767140927Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ); 76837785Smsmith#endif 76937785Smsmith*/ 77072940Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ); 77137785Smsmith 77237785Smsmith /* 77337785Smsmith * Set running and clear output active flags 77437785Smsmith */ 77537785Smsmith sc->arpcom.ac_if.if_flags |= IFF_RUNNING; 77637785Smsmith sc->arpcom.ac_if.if_flags &= ~IFF_OACTIVE; 77737785Smsmith 77837785Smsmith /* 77937785Smsmith * Start sending process 78037785Smsmith */ 78137785Smsmith cs_start(ifp); 78237785Smsmith 78337785Smsmith (void) splx(s); 78437785Smsmith} 78537785Smsmith 78637785Smsmith/* 787106937Ssam * Get the packet from the board and send it to the upper layer. 78837785Smsmith */ 78937785Smsmithstatic int 79037785Smsmithcs_get_packet(struct cs_softc *sc) 79137785Smsmith{ 79237785Smsmith struct ifnet *ifp = &(sc->arpcom.ac_if); 79337785Smsmith int iobase = sc->nic_addr, status, length; 79437785Smsmith struct ether_header *eh; 79537785Smsmith struct mbuf *m; 79637785Smsmith 79737785Smsmith#ifdef CS_DEBUG 79837785Smsmith int i; 79937785Smsmith#endif 80037785Smsmith 80172940Simp status = cs_inw(sc, RX_FRAME_PORT); 80272940Simp length = cs_inw(sc, RX_FRAME_PORT); 80337785Smsmith 80437785Smsmith#ifdef CS_DEBUG 805104252Sbrooks if_printf(ifp, "rcvd: stat %x, len %d\n", 806104252Sbrooks status, length); 80737785Smsmith#endif 80837785Smsmith 80937785Smsmith if (!(status & RX_OK)) { 81037785Smsmith#ifdef CS_DEBUG 811104252Sbrooks if_printf(ifp, "bad pkt stat %x\n", status); 81237785Smsmith#endif 81337785Smsmith ifp->if_ierrors++; 81437785Smsmith return -1; 81537785Smsmith } 81637785Smsmith 817111119Simp MGETHDR(m, M_DONTWAIT, MT_DATA); 81837785Smsmith if (m==NULL) 81937785Smsmith return -1; 82037785Smsmith 82137785Smsmith if (length > MHLEN) { 822111119Simp MCLGET(m, M_DONTWAIT); 82337785Smsmith if (!(m->m_flags & M_EXT)) { 82437785Smsmith m_freem(m); 82537785Smsmith return -1; 82637785Smsmith } 82737785Smsmith } 82837785Smsmith 82937785Smsmith /* Initialize packet's header info */ 83037785Smsmith m->m_pkthdr.rcvif = ifp; 83137785Smsmith m->m_pkthdr.len = length; 83237785Smsmith m->m_len = length; 83337785Smsmith 83437785Smsmith /* Get the data */ 83537785Smsmith insw(iobase + RX_FRAME_PORT, m->m_data, (length+1)>>1); 83637785Smsmith 83737785Smsmith eh = mtod(m, struct ether_header *); 83837785Smsmith 83937785Smsmith#ifdef CS_DEBUG 84037785Smsmith for (i=0;i<length;i++) 84137785Smsmith printf(" %02x",(unsigned char)*((char *)(m->m_data+i))); 84237785Smsmith printf( "\n" ); 84337785Smsmith#endif 84437785Smsmith 84537785Smsmith if (status & (RX_IA | RX_BROADCAST) || 84637785Smsmith (ifp->if_flags & IFF_MULTICAST && status & RX_HASHED)) { 84737785Smsmith /* Feed the packet to the upper layer */ 848106937Ssam (*ifp->if_input)(ifp, m); 84937785Smsmith ifp->if_ipackets++; 850122024Simp if (length == ETHER_MAX_LEN-ETHER_CRC_LEN) 851140927Simp DELAY(cs_recv_delay); 85237785Smsmith } else { 85337785Smsmith m_freem(m); 85437785Smsmith } 85537785Smsmith 85637785Smsmith return 0; 85737785Smsmith} 85837785Smsmith 85937785Smsmith/* 86058816Simp * Handle interrupts 86137785Smsmith */ 86258816Simpvoid 86358816Simpcsintr(void *arg) 86437785Smsmith{ 86558816Simp struct cs_softc *sc = (struct cs_softc*) arg; 86637785Smsmith struct ifnet *ifp = &(sc->arpcom.ac_if); 86741591Sarchie int status; 86837785Smsmith 86937785Smsmith#ifdef CS_DEBUG 870104252Sbrooks if_printf(ifp, "Interrupt.\n"); 87137785Smsmith#endif 87237785Smsmith 87372940Simp while ((status=cs_inw(sc, ISQ_PORT))) { 87437785Smsmith 87537785Smsmith#ifdef CS_DEBUG 876104252Sbrooks if_printf(ifp, "from ISQ: %04x\n", status); 87737785Smsmith#endif 87837785Smsmith 87937785Smsmith switch (status & ISQ_EVENT_MASK) { 880140927Simp case ISQ_RECEIVER_EVENT: 881140927Simp cs_get_packet(sc); 882140927Simp break; 88337785Smsmith 884140927Simp case ISQ_TRANSMITTER_EVENT: 885140927Simp if (status & TX_OK) 886140927Simp ifp->if_opackets++; 887140927Simp else 888140927Simp ifp->if_oerrors++; 889140927Simp ifp->if_flags &= ~IFF_OACTIVE; 890140927Simp ifp->if_timer = 0; 891140927Simp break; 89237785Smsmith 893140927Simp case ISQ_BUFFER_EVENT: 894140927Simp if (status & READY_FOR_TX) { 895140927Simp ifp->if_flags &= ~IFF_OACTIVE; 896140927Simp ifp->if_timer = 0; 897140927Simp } 89837785Smsmith 899140927Simp if (status & TX_UNDERRUN) { 900140927Simp ifp->if_flags &= ~IFF_OACTIVE; 901140927Simp ifp->if_timer = 0; 902140927Simp ifp->if_oerrors++; 903140927Simp } 904140927Simp break; 90537785Smsmith 906140927Simp case ISQ_RX_MISS_EVENT: 907140927Simp ifp->if_ierrors+=(status>>6); 908140927Simp break; 90937785Smsmith 910140927Simp case ISQ_TX_COL_EVENT: 911140927Simp ifp->if_collisions+=(status>>6); 912140927Simp break; 913140927Simp } 914140927Simp } 91537785Smsmith 916140927Simp if (!(ifp->if_flags & IFF_OACTIVE)) { 917140927Simp cs_start(ifp); 918140927Simp } 91937785Smsmith} 92037785Smsmith 92137785Smsmith/* 92237785Smsmith * Save the data in buffer 92337785Smsmith */ 92437785Smsmith 92537785Smsmithstatic void 92637785Smsmithcs_write_mbufs( struct cs_softc *sc, struct mbuf *m ) 92737785Smsmith{ 92837785Smsmith int len; 92937785Smsmith struct mbuf *mp; 93037785Smsmith unsigned char *data, *buf; 93137785Smsmith 93237785Smsmith for (mp=m, buf=sc->buffer, sc->buf_len=0; mp != NULL; mp=mp->m_next) { 93337785Smsmith len = mp->m_len; 93437785Smsmith 93537785Smsmith /* 93637785Smsmith * Ignore empty parts 93737785Smsmith */ 93837785Smsmith if (!len) 93937785Smsmith continue; 94037785Smsmith 94137785Smsmith /* 94237785Smsmith * Find actual data address 94337785Smsmith */ 94437785Smsmith data = mtod(mp, caddr_t); 94537785Smsmith 94637785Smsmith bcopy((caddr_t) data, (caddr_t) buf, len); 94737785Smsmith buf += len; 94837785Smsmith sc->buf_len += len; 94937785Smsmith } 95037785Smsmith} 95137785Smsmith 95237785Smsmith 95337785Smsmithstatic void 95437785Smsmithcs_xmit_buf( struct cs_softc *sc ) 95537785Smsmith{ 95637785Smsmith outsw(sc->nic_addr+TX_FRAME_PORT, sc->buffer, (sc->buf_len+1)>>1); 95737785Smsmith sc->buf_len = 0; 95837785Smsmith} 95937785Smsmith 96037785Smsmithstatic void 96137785Smsmithcs_start(struct ifnet *ifp) 96237785Smsmith{ 96337785Smsmith int s, length; 96437785Smsmith struct mbuf *m, *mp; 96537785Smsmith struct cs_softc *sc = ifp->if_softc; 96637785Smsmith 96737785Smsmith s = splimp(); 96837785Smsmith 96937785Smsmith for (;;) { 97037785Smsmith if (sc->buf_len) 97137785Smsmith length = sc->buf_len; 97237785Smsmith else { 97337785Smsmith IF_DEQUEUE( &ifp->if_snd, m ); 97437785Smsmith 97537785Smsmith if (m==NULL) { 97637785Smsmith (void) splx(s); 97737785Smsmith return; 97837785Smsmith } 97937785Smsmith 98037785Smsmith for (length=0, mp=m; mp != NULL; mp=mp->m_next) 98137785Smsmith length += mp->m_len; 98237785Smsmith 98337785Smsmith /* Skip zero-length packets */ 98437785Smsmith if (length == 0) { 98537785Smsmith m_freem(m); 98637785Smsmith continue; 98737785Smsmith } 98837785Smsmith 98937785Smsmith cs_write_mbufs(sc, m); 99037785Smsmith 991106937Ssam BPF_MTAP(ifp, m); 99237785Smsmith 99337785Smsmith m_freem(m); 99437785Smsmith } 99537785Smsmith 99637785Smsmith /* 99737785Smsmith * Issue a SEND command 99837785Smsmith */ 99972940Simp cs_outw(sc, TX_CMD_PORT, sc->send_cmd); 100072940Simp cs_outw(sc, TX_LEN_PORT, length ); 100137785Smsmith 100237785Smsmith /* 100337785Smsmith * If there's no free space in the buffer then leave 100437785Smsmith * this packet for the next time: indicate output active 100537785Smsmith * and return. 100637785Smsmith */ 100772940Simp if (!(cs_readreg(sc, PP_BusST) & READY_FOR_TX_NOW)) { 100837785Smsmith ifp->if_timer = sc->buf_len; 100937785Smsmith (void) splx(s); 101037785Smsmith ifp->if_flags |= IFF_OACTIVE; 101137785Smsmith return; 101237785Smsmith } 101337785Smsmith 1014140927Simp cs_xmit_buf(sc); 101537785Smsmith 101637785Smsmith /* 101737785Smsmith * Set the watchdog timer in case we never hear 101837785Smsmith * from board again. (I don't know about correct 101937785Smsmith * value for this timeout) 102037785Smsmith */ 102137785Smsmith ifp->if_timer = length; 102237785Smsmith 102337785Smsmith (void) splx(s); 102437785Smsmith ifp->if_flags |= IFF_OACTIVE; 102537785Smsmith return; 102637785Smsmith } 102737785Smsmith} 102837785Smsmith 102937785Smsmith/* 103037785Smsmith * Stop everything on the interface 103137785Smsmith */ 103237785Smsmithstatic void 103337785Smsmithcs_stop(struct cs_softc *sc) 103437785Smsmith{ 103537785Smsmith int s = splimp(); 103637785Smsmith 103772940Simp cs_writereg(sc, PP_RxCFG, 0); 103872940Simp cs_writereg(sc, PP_TxCFG, 0); 103972940Simp cs_writereg(sc, PP_BufCFG, 0); 104072940Simp cs_writereg(sc, PP_BusCTL, 0); 104137785Smsmith 104237785Smsmith sc->arpcom.ac_if.if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 104337785Smsmith sc->arpcom.ac_if.if_timer = 0; 104437785Smsmith 104537785Smsmith (void) splx(s); 104637785Smsmith} 104737785Smsmith 104837785Smsmith/* 104937785Smsmith * Reset the interface 105037785Smsmith */ 105137785Smsmithstatic void 105237785Smsmithcs_reset(struct cs_softc *sc) 105337785Smsmith{ 105437785Smsmith cs_stop(sc); 105537785Smsmith cs_init(sc); 105637785Smsmith} 105737785Smsmith 105837785Smsmithstatic void 105937785Smsmithcs_setmode(struct cs_softc *sc) 106037785Smsmith{ 106137785Smsmith struct ifnet *ifp = &(sc->arpcom.ac_if); 106237785Smsmith int rx_ctl; 106337785Smsmith 106437785Smsmith /* Stop the receiver while changing filters */ 106572940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & ~SERIAL_RX_ON); 106637785Smsmith 106737785Smsmith if (ifp->if_flags & IFF_PROMISC) { 106837785Smsmith /* Turn on promiscuous mode. */ 106937785Smsmith rx_ctl = RX_OK_ACCEPT | RX_PROM_ACCEPT; 107037785Smsmith } else { 107137785Smsmith if (ifp->if_flags & IFF_MULTICAST) { 107237785Smsmith /* Allow receiving frames with multicast addresses */ 107337785Smsmith rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | 107437785Smsmith RX_OK_ACCEPT | RX_MULTCAST_ACCEPT; 107537785Smsmith /* 107637785Smsmith * Here the reconfiguration of chip's multicast 107737785Smsmith * filters should be done but I've no idea about 107837785Smsmith * hash transformation in this chip. If you can 107937785Smsmith * add this code or describe me the transformation 108037785Smsmith * I'd be very glad. 108137785Smsmith */ 108237785Smsmith } else { 108337785Smsmith /* 108437785Smsmith * Receive only good frames addressed for us and 108537785Smsmith * good broadcasts. 108637785Smsmith */ 108737785Smsmith rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | 108837785Smsmith RX_OK_ACCEPT; 108937785Smsmith } 109037785Smsmith } 109137785Smsmith 109237785Smsmith /* Set up the filter */ 109372940Simp cs_writereg(sc, PP_RxCTL, RX_DEF_ACCEPT | rx_ctl); 109437785Smsmith 109537785Smsmith /* Turn on receiver */ 109672940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON); 109737785Smsmith} 109837785Smsmith 109937785Smsmithstatic int 110037785Smsmithcs_ioctl(register struct ifnet *ifp, u_long command, caddr_t data) 110137785Smsmith{ 110237785Smsmith struct cs_softc *sc=ifp->if_softc; 110337785Smsmith struct ifreq *ifr = (struct ifreq *)data; 110437785Smsmith int s,error=0; 110537785Smsmith 110637785Smsmith#ifdef CS_DEBUG 1107104252Sbrooks if_printf(ifp, "ioctl(%lx)\n", command); 110837785Smsmith#endif 110937785Smsmith 111037785Smsmith s=splimp(); 111137785Smsmith 111237785Smsmith switch (command) { 111337785Smsmith case SIOCSIFFLAGS: 111437785Smsmith /* 111537785Smsmith * Switch interface state between "running" and 111637785Smsmith * "stopped", reflecting the UP flag. 1117140927Simp */ 1118140927Simp if (sc->arpcom.ac_if.if_flags & IFF_UP) { 1119140927Simp if ((sc->arpcom.ac_if.if_flags & IFF_RUNNING)==0) { 1120140927Simp cs_init(sc); 1121140927Simp } 1122140927Simp } else { 1123140927Simp if ((sc->arpcom.ac_if.if_flags & IFF_RUNNING)!=0) { 1124140927Simp cs_stop(sc); 1125140927Simp } 112637785Smsmith } 112737785Smsmith /* 112837785Smsmith * Promiscuous and/or multicast flags may have changed, 112937785Smsmith * so reprogram the multicast filter and/or receive mode. 113037785Smsmith * 113137785Smsmith * See note about multicasts in cs_setmode 113237785Smsmith */ 113337785Smsmith cs_setmode(sc); 113437785Smsmith break; 113537785Smsmith 113637785Smsmith case SIOCADDMULTI: 113737785Smsmith case SIOCDELMULTI: 113837785Smsmith /* 113937785Smsmith * Multicast list has changed; set the hardware filter 114037785Smsmith * accordingly. 114137785Smsmith * 114237785Smsmith * See note about multicasts in cs_setmode 114337785Smsmith */ 114437785Smsmith cs_setmode(sc); 114537785Smsmith error = 0; 114637785Smsmith break; 114737785Smsmith 1148140927Simp case SIOCSIFMEDIA: 1149140927Simp case SIOCGIFMEDIA: 1150140927Simp error = ifmedia_ioctl(ifp, ifr, &sc->media, command); 1151140927Simp break; 115237785Smsmith 1153140927Simp default: 1154140921Simp error = ether_ioctl(ifp, command, data); 1155106937Ssam break; 1156140927Simp } 115737785Smsmith 115837785Smsmith (void) splx(s); 115937785Smsmith return error; 116037785Smsmith} 116137785Smsmith 116237785Smsmith/* 116337785Smsmith * Device timeout/watchdog routine. Entered if the device neglects to 116437785Smsmith * generate an interrupt after a transmit has been started on it. 116537785Smsmith */ 116637785Smsmithstatic void 116737785Smsmithcs_watchdog(struct ifnet *ifp) 116837785Smsmith{ 116958816Simp struct cs_softc *sc = ifp->if_softc; 117037785Smsmith 117137785Smsmith ifp->if_oerrors++; 1172121816Sbrooks log(LOG_ERR, "%s: device timeout\n", ifp->if_xname); 117337785Smsmith 117437785Smsmith /* Reset the interface */ 117537785Smsmith if (ifp->if_flags & IFF_UP) 117637785Smsmith cs_reset(sc); 117737785Smsmith else 117837785Smsmith cs_stop(sc); 117937785Smsmith} 118037785Smsmith 118137785Smsmithstatic int 118237785Smsmithcs_mediachange(struct ifnet *ifp) 118337785Smsmith{ 118437785Smsmith struct cs_softc *sc = ifp->if_softc; 118537785Smsmith struct ifmedia *ifm = &sc->media; 118637785Smsmith 118737785Smsmith if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 118837785Smsmith return EINVAL; 118937785Smsmith 119037785Smsmith return cs_mediaset(sc, ifm->ifm_media); 119137785Smsmith} 119237785Smsmith 119337785Smsmithstatic void 119437785Smsmithcs_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 119537785Smsmith{ 119637785Smsmith int line_status; 119737785Smsmith struct cs_softc *sc = ifp->if_softc; 119837785Smsmith 119937785Smsmith ifmr->ifm_active = IFM_ETHER; 120072940Simp line_status = cs_readreg(sc, PP_LineST); 120137785Smsmith if (line_status & TENBASET_ON) { 120237785Smsmith ifmr->ifm_active |= IFM_10_T; 120337785Smsmith if (sc->chip_type != CS8900) { 120472940Simp if (cs_readreg(sc, PP_AutoNegST) & FDX_ACTIVE) 120537785Smsmith ifmr->ifm_active |= IFM_FDX; 120672940Simp if (cs_readreg(sc, PP_AutoNegST) & HDX_ACTIVE) 120737785Smsmith ifmr->ifm_active |= IFM_HDX; 120837785Smsmith } 120937785Smsmith ifmr->ifm_status = IFM_AVALID; 121037785Smsmith if (line_status & LINK_OK) 121137785Smsmith ifmr->ifm_status |= IFM_ACTIVE; 121237785Smsmith } else { 121338305Smsmith if (line_status & AUI_ON) { 121472940Simp cs_writereg(sc, PP_SelfCTL, cs_readreg(sc, PP_SelfCTL) | 121572940Simp HCB1_ENBL); 121638305Smsmith if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0)^ 121772940Simp (cs_readreg(sc, PP_SelfCTL) & HCB1)) 121838305Smsmith ifmr->ifm_active |= IFM_10_2; 121938305Smsmith else 122038305Smsmith ifmr->ifm_active |= IFM_10_5; 122138305Smsmith } 122237785Smsmith } 122337785Smsmith} 122437785Smsmith 122537785Smsmithstatic int 122637785Smsmithcs_mediaset(struct cs_softc *sc, int media) 122737785Smsmith{ 1228140927Simp int error; 122937785Smsmith 123037785Smsmith /* Stop the receiver & transmitter */ 123172940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & 123272940Simp ~(SERIAL_RX_ON | SERIAL_TX_ON)); 123337785Smsmith 123437785Smsmith#ifdef CS_DEBUG 1235104252Sbrooks if_printf(&sc->arpcom.ac_if, "cs_setmedia(%x)\n", media); 123637785Smsmith#endif 123737785Smsmith 123837785Smsmith switch (IFM_SUBTYPE(media)) { 123937785Smsmith default: 124037785Smsmith case IFM_AUTO: 124138592Smsmith if ((error=enable_tp(sc))==0) 124238592Smsmith error = cs_duplex_auto(sc); 124343314Sdillon else if ((error=enable_bnc(sc)) != 0) 124438592Smsmith error = enable_aui(sc); 124537785Smsmith break; 124637785Smsmith case IFM_10_T: 124743314Sdillon if ((error=enable_tp(sc)) != 0) 124837785Smsmith break; 124937785Smsmith if (media & IFM_FDX) 125037785Smsmith cs_duplex_full(sc); 125137785Smsmith else if (media & IFM_HDX) 125237785Smsmith cs_duplex_half(sc); 125337785Smsmith else 125437785Smsmith error = cs_duplex_auto(sc); 125537785Smsmith break; 125637785Smsmith case IFM_10_2: 125737785Smsmith error = enable_bnc(sc); 125837785Smsmith break; 125937785Smsmith case IFM_10_5: 126037785Smsmith error = enable_aui(sc); 126137785Smsmith break; 126237785Smsmith } 126337785Smsmith 126437785Smsmith /* 126537785Smsmith * Turn the transmitter & receiver back on 126637785Smsmith */ 126772940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | 126872940Simp SERIAL_RX_ON | SERIAL_TX_ON); 126937785Smsmith 127037785Smsmith return error; 127137785Smsmith} 1272