if_cs.c revision 179591
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 179591 2008-06-06 04:56:27Z 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> 60156559Sphilip#include <net/if_dl.h> 6137785Smsmith#include <net/if_media.h> 62147256Sbrooks#include <net/if_types.h> 6337785Smsmith#include <net/ethernet.h> 6437785Smsmith#include <net/bpf.h> 6537785Smsmith 6672940Simp#include <dev/cs/if_csvar.h> 6758816Simp#include <dev/cs/if_csreg.h> 6837785Smsmith 6937785Smsmith#ifdef CS_USE_64K_DMA 7037785Smsmith#define CS_DMA_BUFFER_SIZE 65536 7137785Smsmith#else 7237785Smsmith#define CS_DMA_BUFFER_SIZE 16384 7337785Smsmith#endif 7437785Smsmith 75122024Simpstatic void cs_init(void *); 76179560Sjhbstatic void cs_init_locked(struct cs_softc *); 77122024Simpstatic int cs_ioctl(struct ifnet *, u_long, caddr_t); 78122024Simpstatic void cs_start(struct ifnet *); 79179560Sjhbstatic void cs_start_locked(struct ifnet *); 80122024Simpstatic void cs_stop(struct cs_softc *); 81122024Simpstatic void cs_reset(struct cs_softc *); 82179560Sjhbstatic void cs_watchdog(void *); 8338592Smsmith 84122024Simpstatic int cs_mediachange(struct ifnet *); 85122024Simpstatic void cs_mediastatus(struct ifnet *, struct ifmediareq *); 86122024Simpstatic int cs_mediaset(struct cs_softc *, int); 8758816Simp 8837785Smsmithstatic void cs_write_mbufs(struct cs_softc*, struct mbuf*); 8937785Smsmithstatic void cs_xmit_buf(struct cs_softc*); 9037785Smsmithstatic int cs_get_packet(struct cs_softc*); 9137785Smsmithstatic void cs_setmode(struct cs_softc*); 9237785Smsmith 93122024Simpstatic int get_eeprom_data(struct cs_softc *sc, int, int, uint16_t *); 94122024Simpstatic int get_eeprom_cksum(int, int, uint16_t *); 9537785Smsmithstatic int wait_eeprom_ready( struct cs_softc *); 9637785Smsmithstatic void control_dc_dc( struct cs_softc *, int ); 9737785Smsmithstatic int send_test_pkt( struct cs_softc * ); 9837785Smsmithstatic int enable_tp(struct cs_softc *); 9937785Smsmithstatic int enable_aui(struct cs_softc *); 10037785Smsmithstatic int enable_bnc(struct cs_softc *); 10137785Smsmithstatic int cs_duplex_auto(struct cs_softc *); 10237785Smsmith 10371316Simpdevclass_t cs_devclass; 10437785Smsmith 105122024Simp/* sysctl vars */ 106122024SimpSYSCTL_NODE(_hw, OID_AUTO, cs, CTLFLAG_RD, 0, "cs device parameters"); 107122024Simp 108122024Simpint cs_debug = 0; 109122024SimpTUNABLE_INT("hw.cs.debug", &cs_debug); 110122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, debug, CTLFLAG_RW, 111122024Simp &cs_debug, 0, 112122024Simp "cs debug"); 113122024Simp 114122024Simpint cs_ignore_cksum_failure = 0; 115122024SimpTUNABLE_INT("hw.cs.ignore_checksum_failure", &cs_ignore_cksum_failure); 116122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, ignore_checksum_failure, CTLFLAG_RW, 117122024Simp &cs_ignore_cksum_failure, 0, 118122024Simp "ignore checksum errors in cs card EEPROM"); 119122024Simp 120122024Simpstatic int cs_recv_delay = 570; 121140925SimpTUNABLE_INT("hw.cs.recv_delay", &cs_recv_delay); 122122024SimpSYSCTL_INT(_hw_cs, OID_AUTO, recv_delay, CTLFLAG_RW, &cs_recv_delay, 570, ""); 123122024Simp 124179532Simpstatic int cs8900_eeint2irq[16] = { 125179532Simp 10, 11, 12, 5, 255, 255, 255, 255, 126179532Simp 255, 255, 255, 255, 255, 255, 255, 255 127179532Simp}; 128179532Simp 129179532Simpstatic int cs8900_irq2eeint[16] = { 130179532Simp 255, 255, 255, 255, 255, 3, 255, 255, 131179532Simp 255, 0, 1, 2, 255, 255, 255, 255 132179532Simp}; 133179532Simp 13437785Smsmithstatic int 135122024Simpget_eeprom_data(struct cs_softc *sc, int off, int len, uint16_t *buffer) 13637785Smsmith{ 13737785Smsmith int i; 13837785Smsmith 13937785Smsmith#ifdef CS_DEBUG 140179591Simp device_printf(sc->sc_dev, "EEPROM data from %x for %x:\n", off, len); 14137785Smsmith#endif 14237785Smsmith 143122024Simp for (i=0; i < len; i++) { 144122024Simp if (wait_eeprom_ready(sc) < 0) 145122024Simp return (-1); 14637785Smsmith /* Send command to EEPROM to read */ 14772940Simp cs_writereg(sc, PP_EECMD, (off + i) | EEPROM_READ_CMD); 148122024Simp if (wait_eeprom_ready(sc) < 0) 14972940Simp return (-1); 15072940Simp buffer[i] = cs_readreg(sc, PP_EEData); 15137785Smsmith 15237785Smsmith#ifdef CS_DEBUG 153179591Simp printf("%04x ",buffer[i]); 15437785Smsmith#endif 15537785Smsmith } 15637785Smsmith 15737785Smsmith#ifdef CS_DEBUG 15837785Smsmith printf("\n"); 15937785Smsmith#endif 16072940Simp return (0); 16137785Smsmith} 16237785Smsmith 16337785Smsmithstatic int 164122024Simpget_eeprom_cksum(int off, int len, uint16_t *buffer) 16537785Smsmith{ 166122024Simp int i; 167122024Simp uint16_t cksum=0; 16837785Smsmith 169122024Simp for (i = 0; i < len; i++) 170122024Simp cksum += buffer[i]; 17137785Smsmith cksum &= 0xffff; 172179591Simp if (cksum == 0 || cs_ignore_cksum_failure) 173122024Simp return (0); 174122024Simp return (-1); 17537785Smsmith} 17637785Smsmith 17737785Smsmithstatic int 17837785Smsmithwait_eeprom_ready(struct cs_softc *sc) 17937785Smsmith{ 180122024Simp DELAY(30000); /* XXX should we do some checks here ? */ 181140928Simp return (0); 18237785Smsmith} 18337785Smsmith 18437785Smsmithstatic void 18537785Smsmithcontrol_dc_dc(struct cs_softc *sc, int on_not_off) 18637785Smsmith{ 18737785Smsmith unsigned int self_control = HCB1_ENBL; 18837785Smsmith 18937785Smsmith if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0) ^ on_not_off) 19037785Smsmith self_control |= HCB1; 19137785Smsmith else 19237785Smsmith self_control &= ~HCB1; 19372940Simp cs_writereg(sc, PP_SelfCTL, self_control); 194122024Simp DELAY(500000); 19537785Smsmith} 19637785Smsmith 19737785Smsmith 19837785Smsmithstatic int 19937785Smsmithcs_duplex_auto(struct cs_softc *sc) 20037785Smsmith{ 201140927Simp int i, error=0; 202140927Simp 20372940Simp cs_writereg(sc, PP_AutoNegCTL, 20472940Simp RE_NEG_NOW | ALLOW_FDX | AUTO_NEG_ENABLE); 205140927Simp for (i=0; cs_readreg(sc, PP_AutoNegST) & AUTO_NEG_BUSY; i++) { 206140927Simp if (i > 40000) { 207162321Sglebius device_printf(sc->dev, 208140927Simp "full/half duplex auto negotiation timeout\n"); 20937785Smsmith error = ETIMEDOUT; 210140927Simp break; 211140927Simp } 212140927Simp DELAY(1000); 213140927Simp } 214140928Simp return (error); 21537785Smsmith} 21637785Smsmith 21737785Smsmithstatic int 21837785Smsmithenable_tp(struct cs_softc *sc) 21937785Smsmith{ 22037785Smsmith 22172940Simp cs_writereg(sc, PP_LineCTL, sc->line_ctl & ~AUI_ONLY); 22237785Smsmith control_dc_dc(sc, 0); 223140928Simp 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++) 240147256Sbrooks ether_address_backup[i] = sc->enaddr[i]; 24138305Smsmith 24272940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_TX_ON); 243147256Sbrooks bcopy(test_packet, sc->enaddr, ETHER_ADDR_LEN); 24472940Simp bcopy(test_packet+ETHER_ADDR_LEN, 245147256Sbrooks sc->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++) 253147256Sbrooks sc->enaddr[i] = ether_address_backup[i]; 254140928Simp 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++) 262147256Sbrooks sc->enaddr[i] = ether_address_backup[i]; 263122024Simp if ((cs_readreg(sc, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) 264140928Simp return (1); 265140928Simp 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 279179553Simp if (!send_test_pkt(sc)) 280140928Simp return (EINVAL); 281140928Simp return (0); 28237785Smsmith} 28337785Smsmith 28437785Smsmith/* 28537785Smsmith * XXX This was rewritten from Linux driver without any tests. 286140927Simp */ 28737785Smsmithstatic int 28837785Smsmithenable_bnc(struct cs_softc *sc) 28937785Smsmith{ 29037785Smsmith 29137785Smsmith control_dc_dc(sc, 1); 29272940Simp cs_writereg(sc, PP_LineCTL, 29372940Simp (sc->line_ctl & ~AUTO_AUI_10BASET) | AUI_ONLY); 29437785Smsmith 295179553Simp if (!send_test_pkt(sc)) 296140928Simp return (EINVAL); 297140928Simp return (0); 29837785Smsmith} 29937785Smsmith 30071316Simpint 30158816Simpcs_cs89x0_probe(device_t dev) 30237785Smsmith{ 30358816Simp int i; 30458816Simp int error; 30558816Simp u_long irq, junk; 30658816Simp struct cs_softc *sc = device_get_softc(dev); 30737785Smsmith unsigned rev_type = 0; 308122024Simp uint16_t id; 30958816Simp char chip_revision; 310122024Simp uint16_t eeprom_buff[CHKSUM_LEN]; 31137785Smsmith int chip_type, pp_isaint, pp_isadma; 31237785Smsmith 31358816Simp error = cs_alloc_port(dev, 0, CS_89x0_IO_PORTS); 31458816Simp if (error) 31558816Simp return (error); 31658816Simp 31772940Simp sc->nic_addr = rman_get_start(sc->port_res); 31858816Simp 31972940Simp if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) { 32037785Smsmith /* Chip not detected. Let's try to reset it */ 32137785Smsmith if (bootverbose) 32258816Simp device_printf(dev, "trying to reset the chip.\n"); 32372940Simp cs_outw(sc, ADD_PORT, PP_SelfCTL); 32472940Simp i = cs_inw(sc, DATA_PORT); 32572940Simp cs_outw(sc, ADD_PORT, PP_SelfCTL); 32672940Simp cs_outw(sc, DATA_PORT, i | POWER_ON_RESET); 32772940Simp if ((cs_inw(sc, ADD_PORT) & ADD_MASK) != ADD_SIG) 32858816Simp return (ENXIO); 32937785Smsmith } 33037785Smsmith 33172940Simp for (i = 0; i < 10000; i++) { 33272940Simp id = cs_readreg(sc, PP_ChipID); 33372940Simp if (id == CHIP_EISA_ID_SIG) 33472940Simp break; 33572940Simp } 33672940Simp if (i == 10000) 33758816Simp return (ENXIO); 33837785Smsmith 33972940Simp rev_type = cs_readreg(sc, PRODUCT_ID_ADD); 34037785Smsmith chip_type = rev_type & ~REVISON_BITS; 34137785Smsmith chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; 34237785Smsmith 34337785Smsmith sc->chip_type = chip_type; 34458816Simp 345179532Simp if (chip_type == CS8900) { 34637785Smsmith pp_isaint = PP_CS8900_ISAINT; 34737785Smsmith pp_isadma = PP_CS8900_ISADMA; 34837785Smsmith sc->send_cmd = TX_CS8900_AFTER_ALL; 34937785Smsmith } else { 35037785Smsmith pp_isaint = PP_CS8920_ISAINT; 35137785Smsmith pp_isadma = PP_CS8920_ISADMA; 35237785Smsmith sc->send_cmd = TX_CS8920_AFTER_ALL; 35337785Smsmith } 35437785Smsmith 35537785Smsmith /* 356140927Simp * Clear some fields so that fail of EEPROM will left them clean 357140927Simp */ 358140927Simp sc->auto_neg_cnf = 0; 359140927Simp sc->adapter_cnf = 0; 360140927Simp sc->isa_config = 0; 361140927Simp 362140927Simp /* 363179532Simp * If no interrupt specified, use what the board tells us. 36437785Smsmith */ 36558816Simp error = bus_get_resource(dev, SYS_RES_IRQ, 0, &irq, &junk); 36658816Simp 36758816Simp /* 36858816Simp * Get data from EEPROM 36958816Simp */ 37072940Simp if((cs_readreg(sc, PP_SelfST) & EEPROM_PRESENT) == 0) { 37158816Simp device_printf(dev, "No EEPROM, assuming defaults.\n"); 372179532Simp } else if (get_eeprom_data(sc,START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) { 373179532Simp device_printf(dev, "EEPROM read failed, assuming defaults.\n"); 374179532Simp } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN, eeprom_buff)<0) { 375179532Simp device_printf(dev, "EEPROM cheksum bad, assuming defaults.\n"); 37637785Smsmith } else { 377179532Simp sc->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; 378179532Simp sc->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2]; 379179532Simp sc->isa_config = eeprom_buff[ISA_CNF_OFFSET/2]; 380179532Simp for (i=0; i<ETHER_ADDR_LEN/2; i++) { 381179532Simp sc->enaddr[i*2] = eeprom_buff[i]; 382179532Simp sc->enaddr[i*2+1] = eeprom_buff[i] >> 8; 383179532Simp } 384179532Simp /* 385179532Simp * If no interrupt specified, use what the 386179532Simp * board tells us. 387179532Simp */ 388179532Simp if (error) { 389179532Simp irq = sc->isa_config & INT_NO_MASK; 390179532Simp error = 0; 391179532Simp if (chip_type == CS8900) { 392179532Simp irq = cs8900_eeint2irq[irq]; 39337785Smsmith } else { 394179532Simp if (irq > CS8920_NO_INTS) 395179532Simp irq = 255; 39637785Smsmith } 397179532Simp if (irq == 255) { 398179532Simp device_printf(dev, "invalid irq in EEPROM.\n"); 399179532Simp error = EINVAL; 400179532Simp } 401179532Simp if (!error) 402179532Simp bus_set_resource(dev, SYS_RES_IRQ, 0, 403179532Simp irq, 1); 404140927Simp } 405140927Simp } 40637785Smsmith 407179532Simp if (!error && !(sc->flags & CS_NO_IRQ)) { 408140927Simp if (chip_type == CS8900) { 409179532Simp if (irq >= 0 || irq < 16) 410179532Simp irq = cs8900_irq2eeint[irq]; 411179532Simp else 412179532Simp irq = 255; 413140927Simp } else { 414179532Simp if (irq > CS8920_NO_INTS) 415179532Simp irq = 255; 416140927Simp } 417179532Simp if (irq == 255) 418179532Simp error = EINVAL; 41958816Simp } 42058816Simp 421179507Simp if (error) { 42258816Simp device_printf(dev, "Unknown or invalid irq\n"); 423179507Simp return (error); 424140927Simp } 425140927Simp 426179507Simp if (!(sc->flags & CS_NO_IRQ)) 427179507Simp cs_writereg(sc, pp_isaint, irq); 428179507Simp 429140927Simp /* 430140927Simp * Temporary disabled 431140927Simp * 432140927Simp if (drq>0) 43372940Simp cs_writereg(sc, pp_isadma, drq); 43437785Smsmith else { 435104252Sbrooks device_printf(dev, "incorrect drq\n",); 436140928Simp return (0); 43737785Smsmith } 438140927Simp */ 43937785Smsmith 44037785Smsmith if (bootverbose) 44158816Simp device_printf(dev, "CS89%c0%s rev %c media%s%s%s\n", 442179532Simp chip_type == CS8900 ? '0' : '2', 443179532Simp chip_type == CS8920M ? "M" : "", 44437785Smsmith chip_revision, 44537785Smsmith (sc->adapter_cnf & A_CNF_10B_T) ? " TP" : "", 44637785Smsmith (sc->adapter_cnf & A_CNF_AUI) ? " AUI" : "", 44758816Simp (sc->adapter_cnf & A_CNF_10B_2) ? " BNC" : ""); 44837785Smsmith 449140927Simp if ((sc->adapter_cnf & A_CNF_EXTND_10B_2) && 450140927Simp (sc->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) 451140927Simp sc->line_ctl = LOW_RX_SQUELCH; 452140927Simp else 453140927Simp sc->line_ctl = 0; 45437785Smsmith 455140928Simp return (0); 45637785Smsmith} 45737785Smsmith 45837785Smsmith/* 45958816Simp * Allocate a port resource with the given resource id. 46058816Simp */ 461179560Sjhbint 462179560Sjhbcs_alloc_port(device_t dev, int rid, int size) 46358816Simp{ 464140927Simp struct cs_softc *sc = device_get_softc(dev); 465140927Simp struct resource *res; 46658816Simp 467140927Simp res = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 468140927Simp 0ul, ~0ul, size, RF_ACTIVE); 469140928Simp if (res == NULL) 470140927Simp return (ENOENT); 471140928Simp sc->port_rid = rid; 472140928Simp sc->port_res = res; 473140928Simp return (0); 47458816Simp} 47558816Simp 47658816Simp/* 47758816Simp * Allocate a memory resource with the given resource id. 47858816Simp */ 479179560Sjhbint 480179560Sjhbcs_alloc_memory(device_t dev, int rid, int size) 48158816Simp{ 482140927Simp struct cs_softc *sc = device_get_softc(dev); 483140927Simp struct resource *res; 48458816Simp 485140927Simp res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 486140927Simp 0ul, ~0ul, size, RF_ACTIVE); 487140928Simp if (res == NULL) 488140927Simp return (ENOENT); 489140928Simp return (0); 49058816Simp} 49158816Simp 49258816Simp/* 49358816Simp * Allocate an irq resource with the given resource id. 49458816Simp */ 495179560Sjhbint 496179560Sjhbcs_alloc_irq(device_t dev, int rid, int flags) 49758816Simp{ 498140927Simp struct cs_softc *sc = device_get_softc(dev); 499140927Simp struct resource *res; 50058816Simp 501140927Simp res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 502140927Simp (RF_ACTIVE | flags)); 503140928Simp if (res == NULL) 504140927Simp return (ENOENT); 505140928Simp sc->irq_rid = rid; 506140928Simp sc->irq_res = res; 507140928Simp return (0); 50858816Simp} 50958816Simp 51058816Simp/* 51158816Simp * Release all resources 51258816Simp */ 513179560Sjhbvoid 514179560Sjhbcs_release_resources(device_t dev) 51558816Simp{ 516140927Simp struct cs_softc *sc = device_get_softc(dev); 51758816Simp 518140927Simp if (sc->port_res) { 519140927Simp bus_release_resource(dev, SYS_RES_IOPORT, 520140927Simp sc->port_rid, sc->port_res); 521140927Simp sc->port_res = 0; 522140927Simp } 523140927Simp if (sc->irq_res) { 524140927Simp bus_release_resource(dev, SYS_RES_IRQ, 525140927Simp sc->irq_rid, sc->irq_res); 526140927Simp sc->irq_res = 0; 527140927Simp } 52858816Simp} 52958816Simp 53058816Simp/* 53137785Smsmith * Install the interface into kernel networking data structures 53237785Smsmith */ 53371316Simpint 534121816Sbrookscs_attach(device_t dev) 53537785Smsmith{ 536179560Sjhb int error, media=0; 537121816Sbrooks struct cs_softc *sc = device_get_softc(dev);; 538147256Sbrooks struct ifnet *ifp; 53937785Smsmith 540162321Sglebius sc->dev = dev; 541162321Sglebius 542147256Sbrooks ifp = sc->ifp = if_alloc(IFT_ETHER); 543147256Sbrooks if (ifp == NULL) { 544147256Sbrooks device_printf(dev, "can not if_alloc()\n"); 545179560Sjhb cs_release_resources(dev); 546179560Sjhb return (ENOMEM); 547147256Sbrooks } 548147256Sbrooks 549179560Sjhb mtx_init(&sc->lock, device_get_nameunit(dev), MTX_NETWORK_LOCK, 550179560Sjhb MTX_DEF); 551179560Sjhb callout_init_mtx(&sc->timer, &sc->lock, 0); 55258816Simp 553179560Sjhb CS_LOCK(sc); 554179560Sjhb cs_stop(sc); 555179560Sjhb CS_UNLOCK(sc); 556179560Sjhb 557121752Sbrooks ifp->if_softc=sc; 558121816Sbrooks if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 559121752Sbrooks ifp->if_start=cs_start; 560121752Sbrooks ifp->if_ioctl=cs_ioctl; 561121752Sbrooks ifp->if_init=cs_init; 562179560Sjhb IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 563121752Sbrooks /* 564121752Sbrooks * MIB DATA 565121752Sbrooks */ 566121752Sbrooks /* 567121752Sbrooks ifp->if_linkmib=&sc->mibdata; 568121752Sbrooks ifp->if_linkmiblen=sizeof sc->mibdata; 569121752Sbrooks */ 57037785Smsmith 571179560Sjhb ifp->if_flags=(IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST); 57237785Smsmith 573121752Sbrooks /* 574121752Sbrooks * this code still in progress (DMA support) 575121752Sbrooks * 57637785Smsmith 577121752Sbrooks sc->recv_ring=malloc(CS_DMA_BUFFER_SIZE<<1, M_DEVBUF, M_NOWAIT); 578121752Sbrooks if (sc->recv_ring == NULL) { 579121816Sbrooks log(LOG_ERR, 580121816Sbrooks "%s: Couldn't allocate memory for NIC\n", ifp->if_xname); 581121752Sbrooks return(0); 582121752Sbrooks } 583121752Sbrooks if ((sc->recv_ring-(sc->recv_ring & 0x1FFFF)) 584121752Sbrooks < (128*1024-CS_DMA_BUFFER_SIZE)) 585121752Sbrooks sc->recv_ring+=16*1024; 58637785Smsmith 587121752Sbrooks */ 58837785Smsmith 589121752Sbrooks sc->buffer=malloc(ETHER_MAX_LEN-ETHER_CRC_LEN,M_DEVBUF,M_NOWAIT); 590121752Sbrooks if (sc->buffer == NULL) { 591162321Sglebius device_printf(sc->dev, "Couldn't allocate memory for NIC\n"); 592179560Sjhb if_free(ifp); 593179560Sjhb mtx_destroy(&sc->lock); 594179560Sjhb cs_release_resources(dev); 595179560Sjhb return(ENOMEM); 596121752Sbrooks } 59737785Smsmith 598121752Sbrooks /* 599121752Sbrooks * Initialize the media structures. 600121752Sbrooks */ 601121752Sbrooks ifmedia_init(&sc->media, 0, cs_mediachange, cs_mediastatus); 60237785Smsmith 603121752Sbrooks if (sc->adapter_cnf & A_CNF_10B_T) { 604121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL); 605121752Sbrooks if (sc->chip_type != CS8900) { 606121752Sbrooks ifmedia_add(&sc->media, 607121752Sbrooks IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 608121752Sbrooks ifmedia_add(&sc->media, 609121752Sbrooks IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); 610121752Sbrooks } 611121752Sbrooks } 61237785Smsmith 613121752Sbrooks if (sc->adapter_cnf & A_CNF_10B_2) 614121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_2, 0, NULL); 61537785Smsmith 616121752Sbrooks if (sc->adapter_cnf & A_CNF_AUI) 617121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_10_5, 0, NULL); 61837785Smsmith 619121752Sbrooks if (sc->adapter_cnf & A_CNF_MEDIA) 620121752Sbrooks ifmedia_add(&sc->media, IFM_ETHER|IFM_AUTO, 0, NULL); 62137785Smsmith 622121752Sbrooks /* Set default media from EEPROM */ 623121752Sbrooks switch (sc->adapter_cnf & A_CNF_MEDIA_TYPE) { 624121752Sbrooks case A_CNF_MEDIA_AUTO: media = IFM_ETHER|IFM_AUTO; break; 625121752Sbrooks case A_CNF_MEDIA_10B_T: media = IFM_ETHER|IFM_10_T; break; 626121752Sbrooks case A_CNF_MEDIA_10B_2: media = IFM_ETHER|IFM_10_2; break; 627121752Sbrooks case A_CNF_MEDIA_AUI: media = IFM_ETHER|IFM_10_5; break; 628122024Simp default: 629162321Sglebius device_printf(sc->dev, "no media, assuming 10baseT\n"); 630122024Simp sc->adapter_cnf |= A_CNF_10B_T; 631122024Simp ifmedia_add(&sc->media, IFM_ETHER|IFM_10_T, 0, NULL); 632122024Simp if (sc->chip_type != CS8900) { 633122024Simp ifmedia_add(&sc->media, 634122024Simp IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 635122024Simp ifmedia_add(&sc->media, 636122024Simp IFM_ETHER|IFM_10_T|IFM_HDX, 0, NULL); 637122024Simp } 638122024Simp media = IFM_ETHER | IFM_10_T; 639122024Simp break; 64037785Smsmith } 641121752Sbrooks ifmedia_set(&sc->media, media); 642121752Sbrooks cs_mediaset(sc, media); 64337785Smsmith 644147256Sbrooks ether_ifattach(ifp, sc->enaddr); 645121752Sbrooks 646179560Sjhb error = bus_setup_intr(dev, sc->irq_res, INTR_TYPE_NET | INTR_MPSAFE, 647179560Sjhb NULL, csintr, sc, &sc->irq_handle); 648179560Sjhb if (error) { 649179560Sjhb ether_ifdetach(ifp); 650179560Sjhb free(sc->buffer, M_DEVBUF); 651179560Sjhb if_free(ifp); 652179560Sjhb mtx_destroy(&sc->lock); 653179560Sjhb cs_release_resources(dev); 654179560Sjhb return (error); 655179560Sjhb } 656179560Sjhb 65758816Simp return (0); 65837785Smsmith} 65937785Smsmith 660140888Simpint 661140888Simpcs_detach(device_t dev) 662140888Simp{ 663140888Simp struct cs_softc *sc; 664140888Simp struct ifnet *ifp; 665140888Simp 666140888Simp sc = device_get_softc(dev); 667147256Sbrooks ifp = sc->ifp; 668140888Simp 669179560Sjhb CS_LOCK(sc); 670140888Simp cs_stop(sc); 671179560Sjhb CS_UNLOCK(sc); 672179560Sjhb callout_drain(&sc->timer); 673140888Simp ether_ifdetach(ifp); 674179560Sjhb bus_teardown_intr(dev, sc->irq_res, sc->irq_handle); 675150306Simp cs_release_resources(dev); 676179560Sjhb free(sc->buffer, M_DEVBUF); 677147256Sbrooks if_free(ifp); 678179560Sjhb mtx_destroy(&sc->lock); 679140888Simp return (0); 680140888Simp} 681140888Simp 68237785Smsmith/* 68337785Smsmith * Initialize the board 68437785Smsmith */ 68537785Smsmithstatic void 68637785Smsmithcs_init(void *xsc) 68737785Smsmith{ 68837785Smsmith struct cs_softc *sc=(struct cs_softc *)xsc; 689179560Sjhb 690179560Sjhb CS_LOCK(sc); 691179560Sjhb cs_init_locked(sc); 692179560Sjhb CS_UNLOCK(sc); 693179560Sjhb} 694179560Sjhb 695179560Sjhbstatic void 696179560Sjhbcs_init_locked(struct cs_softc *sc) 697179560Sjhb{ 698147256Sbrooks struct ifnet *ifp = sc->ifp; 699179560Sjhb int i, rx_cfg; 70037785Smsmith 70137785Smsmith /* 702179560Sjhb * reset watchdog timer 70337785Smsmith */ 704179560Sjhb sc->tx_timeout = 0; 70537785Smsmith sc->buf_len = 0; 70637785Smsmith 70737785Smsmith /* 70837785Smsmith * Hardware initialization of cs 70937785Smsmith */ 71037785Smsmith 71137785Smsmith /* Enable receiver and transmitter */ 71272940Simp cs_writereg(sc, PP_LineCTL, 71372940Simp cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); 71437785Smsmith 71537785Smsmith /* Configure the receiver mode */ 71637785Smsmith cs_setmode(sc); 71737785Smsmith 71837785Smsmith /* 71937785Smsmith * This defines what type of frames will cause interrupts 72037785Smsmith * Bad frames should generate interrupts so that the driver 72137785Smsmith * could track statistics of discarded packets 72237785Smsmith */ 723140927Simp rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL | RX_RUNT_ENBL | 72437785Smsmith RX_EXTRA_DATA_ENBL; 72537785Smsmith if (sc->isa_config & STREAM_TRANSFER) 72637785Smsmith rx_cfg |= RX_STREAM_ENBL; 72772940Simp cs_writereg(sc, PP_RxCFG, rx_cfg); 72872940Simp cs_writereg(sc, PP_TxCFG, TX_LOST_CRS_ENBL | 72937785Smsmith TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL | 73037785Smsmith TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); 73172940Simp cs_writereg(sc, PP_BufCFG, READY_FOR_TX_ENBL | 73237785Smsmith RX_MISS_COUNT_OVRFLOW_ENBL | TX_COL_COUNT_OVRFLOW_ENBL | 73337785Smsmith TX_UNDERRUN_ENBL /*| RX_DMA_ENBL*/); 73437785Smsmith 735140927Simp /* Write MAC address into IA filter */ 736140927Simp for (i=0; i<ETHER_ADDR_LEN/2; i++) 737140927Simp cs_writereg(sc, PP_IA + i * 2, 738147256Sbrooks sc->enaddr[i * 2] | 739147256Sbrooks (sc->enaddr[i * 2 + 1] << 8) ); 74037785Smsmith 74137785Smsmith /* 74237785Smsmith * Now enable everything 74337785Smsmith */ 74437785Smsmith/* 74537785Smsmith#ifdef CS_USE_64K_DMA 74672940Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ | RX_DMA_SIZE_64K); 74772940Simp#else 748140927Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ); 74937785Smsmith#endif 75037785Smsmith*/ 75172940Simp cs_writereg(sc, PP_BusCTL, ENABLE_IRQ); 75237785Smsmith 75337785Smsmith /* 75437785Smsmith * Set running and clear output active flags 75537785Smsmith */ 756148887Srwatson sc->ifp->if_drv_flags |= IFF_DRV_RUNNING; 757148887Srwatson sc->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 758179560Sjhb callout_reset(&sc->timer, hz, cs_watchdog, sc); 75937785Smsmith 76037785Smsmith /* 76137785Smsmith * Start sending process 76237785Smsmith */ 763179560Sjhb cs_start_locked(ifp); 76437785Smsmith} 76537785Smsmith 76637785Smsmith/* 767106937Ssam * Get the packet from the board and send it to the upper layer. 76837785Smsmith */ 76937785Smsmithstatic int 77037785Smsmithcs_get_packet(struct cs_softc *sc) 77137785Smsmith{ 772147256Sbrooks struct ifnet *ifp = sc->ifp; 77337785Smsmith int iobase = sc->nic_addr, status, length; 77437785Smsmith struct ether_header *eh; 77537785Smsmith struct mbuf *m; 77637785Smsmith 77737785Smsmith#ifdef CS_DEBUG 77837785Smsmith int i; 77937785Smsmith#endif 78037785Smsmith 78172940Simp status = cs_inw(sc, RX_FRAME_PORT); 78272940Simp length = cs_inw(sc, RX_FRAME_PORT); 78337785Smsmith 78437785Smsmith#ifdef CS_DEBUG 785162321Sglebius device_printf(sc->dev, "rcvd: stat %x, len %d\n", 786104252Sbrooks status, length); 78737785Smsmith#endif 78837785Smsmith 78937785Smsmith if (!(status & RX_OK)) { 79037785Smsmith#ifdef CS_DEBUG 791162321Sglebius device_printf(sc->dev, "bad pkt stat %x\n", status); 79237785Smsmith#endif 79337785Smsmith ifp->if_ierrors++; 794140928Simp return (-1); 79537785Smsmith } 79637785Smsmith 797111119Simp MGETHDR(m, M_DONTWAIT, MT_DATA); 79837785Smsmith if (m==NULL) 799140928Simp return (-1); 80037785Smsmith 80137785Smsmith if (length > MHLEN) { 802111119Simp MCLGET(m, M_DONTWAIT); 80337785Smsmith if (!(m->m_flags & M_EXT)) { 80437785Smsmith m_freem(m); 805140928Simp return (-1); 80637785Smsmith } 80737785Smsmith } 80837785Smsmith 80937785Smsmith /* Initialize packet's header info */ 81037785Smsmith m->m_pkthdr.rcvif = ifp; 81137785Smsmith m->m_pkthdr.len = length; 81237785Smsmith m->m_len = length; 81337785Smsmith 81437785Smsmith /* Get the data */ 81537785Smsmith insw(iobase + RX_FRAME_PORT, m->m_data, (length+1)>>1); 81637785Smsmith 81737785Smsmith eh = mtod(m, struct ether_header *); 81837785Smsmith 81937785Smsmith#ifdef CS_DEBUG 82037785Smsmith for (i=0;i<length;i++) 82137785Smsmith printf(" %02x",(unsigned char)*((char *)(m->m_data+i))); 82237785Smsmith printf( "\n" ); 82337785Smsmith#endif 82437785Smsmith 82537785Smsmith if (status & (RX_IA | RX_BROADCAST) || 82637785Smsmith (ifp->if_flags & IFF_MULTICAST && status & RX_HASHED)) { 82737785Smsmith /* Feed the packet to the upper layer */ 828106937Ssam (*ifp->if_input)(ifp, m); 82937785Smsmith ifp->if_ipackets++; 830122024Simp if (length == ETHER_MAX_LEN-ETHER_CRC_LEN) 831140927Simp DELAY(cs_recv_delay); 83237785Smsmith } else { 83337785Smsmith m_freem(m); 83437785Smsmith } 83537785Smsmith 836140928Simp return (0); 83737785Smsmith} 83837785Smsmith 83937785Smsmith/* 84058816Simp * Handle interrupts 84137785Smsmith */ 84258816Simpvoid 84358816Simpcsintr(void *arg) 84437785Smsmith{ 84558816Simp struct cs_softc *sc = (struct cs_softc*) arg; 846147256Sbrooks struct ifnet *ifp = sc->ifp; 84741591Sarchie int status; 84837785Smsmith 84937785Smsmith#ifdef CS_DEBUG 850162321Sglebius device_printf(sc->dev, "Interrupt.\n"); 85137785Smsmith#endif 85237785Smsmith 853179560Sjhb CS_LOCK(sc); 85472940Simp while ((status=cs_inw(sc, ISQ_PORT))) { 85537785Smsmith 85637785Smsmith#ifdef CS_DEBUG 857162321Sglebius device_printf(sc->dev, "from ISQ: %04x\n", status); 85837785Smsmith#endif 85937785Smsmith 86037785Smsmith switch (status & ISQ_EVENT_MASK) { 861140927Simp case ISQ_RECEIVER_EVENT: 862140927Simp cs_get_packet(sc); 863140927Simp break; 86437785Smsmith 865140927Simp case ISQ_TRANSMITTER_EVENT: 866140927Simp if (status & TX_OK) 867140927Simp ifp->if_opackets++; 868140927Simp else 869140927Simp ifp->if_oerrors++; 870148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 871179560Sjhb sc->tx_timeout = 0; 872140927Simp break; 87337785Smsmith 874140927Simp case ISQ_BUFFER_EVENT: 875140927Simp if (status & READY_FOR_TX) { 876148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 877179560Sjhb sc->tx_timeout = 0; 878140927Simp } 87937785Smsmith 880140927Simp if (status & TX_UNDERRUN) { 881148887Srwatson ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 882179560Sjhb sc->tx_timeout = 0; 883140927Simp ifp->if_oerrors++; 884140927Simp } 885140927Simp break; 88637785Smsmith 887140927Simp case ISQ_RX_MISS_EVENT: 888140927Simp ifp->if_ierrors+=(status>>6); 889140927Simp break; 89037785Smsmith 891140927Simp case ISQ_TX_COL_EVENT: 892140927Simp ifp->if_collisions+=(status>>6); 893140927Simp break; 894140927Simp } 895140927Simp } 89637785Smsmith 897148887Srwatson if (!(ifp->if_drv_flags & IFF_DRV_OACTIVE)) { 898179560Sjhb cs_start_locked(ifp); 899140927Simp } 900179560Sjhb CS_UNLOCK(sc); 90137785Smsmith} 90237785Smsmith 90337785Smsmith/* 90437785Smsmith * Save the data in buffer 90537785Smsmith */ 90637785Smsmith 90737785Smsmithstatic void 90837785Smsmithcs_write_mbufs( struct cs_softc *sc, struct mbuf *m ) 90937785Smsmith{ 91037785Smsmith int len; 91137785Smsmith struct mbuf *mp; 91237785Smsmith unsigned char *data, *buf; 91337785Smsmith 91437785Smsmith for (mp=m, buf=sc->buffer, sc->buf_len=0; mp != NULL; mp=mp->m_next) { 91537785Smsmith len = mp->m_len; 91637785Smsmith 91737785Smsmith /* 91837785Smsmith * Ignore empty parts 91937785Smsmith */ 92037785Smsmith if (!len) 92137785Smsmith continue; 92237785Smsmith 92337785Smsmith /* 92437785Smsmith * Find actual data address 92537785Smsmith */ 92637785Smsmith data = mtod(mp, caddr_t); 92737785Smsmith 92837785Smsmith bcopy((caddr_t) data, (caddr_t) buf, len); 92937785Smsmith buf += len; 93037785Smsmith sc->buf_len += len; 93137785Smsmith } 93237785Smsmith} 93337785Smsmith 93437785Smsmith 93537785Smsmithstatic void 93637785Smsmithcs_xmit_buf( struct cs_softc *sc ) 93737785Smsmith{ 93837785Smsmith outsw(sc->nic_addr+TX_FRAME_PORT, sc->buffer, (sc->buf_len+1)>>1); 93937785Smsmith sc->buf_len = 0; 94037785Smsmith} 94137785Smsmith 94237785Smsmithstatic void 94337785Smsmithcs_start(struct ifnet *ifp) 94437785Smsmith{ 945179560Sjhb struct cs_softc *sc = ifp->if_softc; 946179560Sjhb 947179560Sjhb CS_LOCK(sc); 948179560Sjhb cs_start_locked(ifp); 949179560Sjhb CS_UNLOCK(sc); 950179560Sjhb} 951179560Sjhb 952179560Sjhbstatic void 953179560Sjhbcs_start_locked(struct ifnet *ifp) 954179560Sjhb{ 955179560Sjhb int length; 95637785Smsmith struct mbuf *m, *mp; 95737785Smsmith struct cs_softc *sc = ifp->if_softc; 95837785Smsmith 95937785Smsmith for (;;) { 96037785Smsmith if (sc->buf_len) 96137785Smsmith length = sc->buf_len; 96237785Smsmith else { 96337785Smsmith IF_DEQUEUE( &ifp->if_snd, m ); 96437785Smsmith 96537785Smsmith if (m==NULL) { 96637785Smsmith return; 96737785Smsmith } 96837785Smsmith 96937785Smsmith for (length=0, mp=m; mp != NULL; mp=mp->m_next) 97037785Smsmith length += mp->m_len; 97137785Smsmith 97237785Smsmith /* Skip zero-length packets */ 97337785Smsmith if (length == 0) { 97437785Smsmith m_freem(m); 97537785Smsmith continue; 97637785Smsmith } 97737785Smsmith 97837785Smsmith cs_write_mbufs(sc, m); 97937785Smsmith 980106937Ssam BPF_MTAP(ifp, m); 98137785Smsmith 98237785Smsmith m_freem(m); 98337785Smsmith } 98437785Smsmith 98537785Smsmith /* 98637785Smsmith * Issue a SEND command 98737785Smsmith */ 98872940Simp cs_outw(sc, TX_CMD_PORT, sc->send_cmd); 98972940Simp cs_outw(sc, TX_LEN_PORT, length ); 99037785Smsmith 99137785Smsmith /* 99237785Smsmith * If there's no free space in the buffer then leave 99337785Smsmith * this packet for the next time: indicate output active 99437785Smsmith * and return. 99537785Smsmith */ 99672940Simp if (!(cs_readreg(sc, PP_BusST) & READY_FOR_TX_NOW)) { 997179560Sjhb sc->tx_timeout = sc->buf_len; 998148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 99937785Smsmith return; 100037785Smsmith } 100137785Smsmith 1002140927Simp cs_xmit_buf(sc); 100337785Smsmith 100437785Smsmith /* 100537785Smsmith * Set the watchdog timer in case we never hear 100637785Smsmith * from board again. (I don't know about correct 100737785Smsmith * value for this timeout) 100837785Smsmith */ 1009179560Sjhb sc->tx_timeout = length; 101037785Smsmith 1011148887Srwatson ifp->if_drv_flags |= IFF_DRV_OACTIVE; 101237785Smsmith return; 101337785Smsmith } 101437785Smsmith} 101537785Smsmith 101637785Smsmith/* 101737785Smsmith * Stop everything on the interface 101837785Smsmith */ 101937785Smsmithstatic void 102037785Smsmithcs_stop(struct cs_softc *sc) 102137785Smsmith{ 102237785Smsmith 1023179560Sjhb CS_ASSERT_LOCKED(sc); 102472940Simp cs_writereg(sc, PP_RxCFG, 0); 102572940Simp cs_writereg(sc, PP_TxCFG, 0); 102672940Simp cs_writereg(sc, PP_BufCFG, 0); 102772940Simp cs_writereg(sc, PP_BusCTL, 0); 102837785Smsmith 1029148887Srwatson sc->ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 1030179560Sjhb sc->tx_timeout = 0; 1031179560Sjhb callout_stop(&sc->timer); 103237785Smsmith} 103337785Smsmith 103437785Smsmith/* 103537785Smsmith * Reset the interface 103637785Smsmith */ 103737785Smsmithstatic void 103837785Smsmithcs_reset(struct cs_softc *sc) 103937785Smsmith{ 1040179560Sjhb 1041179560Sjhb CS_ASSERT_LOCKED(sc); 104237785Smsmith cs_stop(sc); 1043179560Sjhb cs_init_locked(sc); 104437785Smsmith} 104537785Smsmith 1046156559Sphilipstatic uint16_t 1047156559Sphilipcs_hash_index(struct sockaddr_dl *addr) 1048156559Sphilip{ 1049156559Sphilip uint32_t crc; 1050156559Sphilip uint16_t idx; 1051156559Sphilip caddr_t lla; 1052156559Sphilip 1053156559Sphilip lla = LLADDR(addr); 1054156559Sphilip crc = ether_crc32_le(lla, ETHER_ADDR_LEN); 1055156559Sphilip idx = crc >> 26; 1056156559Sphilip 1057156559Sphilip return (idx); 1058156559Sphilip} 1059156559Sphilip 106037785Smsmithstatic void 106137785Smsmithcs_setmode(struct cs_softc *sc) 106237785Smsmith{ 1063156559Sphilip int rx_ctl; 1064156559Sphilip uint16_t af[4]; 1065156559Sphilip uint16_t port, mask, index; 1066147256Sbrooks struct ifnet *ifp = sc->ifp; 1067156559Sphilip struct ifmultiaddr *ifma; 106837785Smsmith 106937785Smsmith /* Stop the receiver while changing filters */ 107072940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & ~SERIAL_RX_ON); 107137785Smsmith 107237785Smsmith if (ifp->if_flags & IFF_PROMISC) { 107337785Smsmith /* Turn on promiscuous mode. */ 107437785Smsmith rx_ctl = RX_OK_ACCEPT | RX_PROM_ACCEPT; 1075156559Sphilip } else if (ifp->if_flags & IFF_MULTICAST) { 1076156559Sphilip /* Allow receiving frames with multicast addresses */ 1077156559Sphilip rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | 1078156559Sphilip RX_OK_ACCEPT | RX_MULTCAST_ACCEPT; 1079156559Sphilip 1080156559Sphilip /* Start with an empty filter */ 1081156559Sphilip af[0] = af[1] = af[2] = af[3] = 0x0000; 1082156559Sphilip 1083156559Sphilip if (ifp->if_flags & IFF_ALLMULTI) { 1084156559Sphilip /* Accept all multicast frames */ 1085156559Sphilip af[0] = af[1] = af[2] = af[3] = 0xffff; 108637785Smsmith } else { 1087156559Sphilip /* 1088156559Sphilip * Set up the filter to only accept multicast 1089156559Sphilip * frames we're interested in. 109037785Smsmith */ 1091156559Sphilip IF_ADDR_LOCK(ifp); 1092156559Sphilip TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 1093156559Sphilip struct sockaddr_dl *dl = 1094156559Sphilip (struct sockaddr_dl *)ifma->ifma_addr; 1095156559Sphilip 1096156559Sphilip index = cs_hash_index(dl); 1097156559Sphilip port = (u_int16_t) (index >> 4); 1098156559Sphilip mask = (u_int16_t) (1 << (index & 0xf)); 1099156559Sphilip af[port] |= mask; 1100156559Sphilip } 1101156559Sphilip IF_ADDR_UNLOCK(ifp); 110237785Smsmith } 1103156559Sphilip 1104156559Sphilip cs_writereg(sc, PP_LAF + 0, af[0]); 1105156559Sphilip cs_writereg(sc, PP_LAF + 2, af[1]); 1106156559Sphilip cs_writereg(sc, PP_LAF + 4, af[2]); 1107156559Sphilip cs_writereg(sc, PP_LAF + 6, af[3]); 1108156559Sphilip } else { 1109156559Sphilip /* 1110156559Sphilip * Receive only good frames addressed for us and 1111156559Sphilip * good broadcasts. 1112156559Sphilip */ 1113156559Sphilip rx_ctl = RX_IA_ACCEPT | RX_BROADCAST_ACCEPT | 1114156559Sphilip RX_OK_ACCEPT; 111537785Smsmith } 111637785Smsmith 111737785Smsmith /* Set up the filter */ 111872940Simp cs_writereg(sc, PP_RxCTL, RX_DEF_ACCEPT | rx_ctl); 111937785Smsmith 112037785Smsmith /* Turn on receiver */ 112172940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | SERIAL_RX_ON); 112237785Smsmith} 112337785Smsmith 112437785Smsmithstatic int 112537785Smsmithcs_ioctl(register struct ifnet *ifp, u_long command, caddr_t data) 112637785Smsmith{ 112737785Smsmith struct cs_softc *sc=ifp->if_softc; 112837785Smsmith struct ifreq *ifr = (struct ifreq *)data; 1129179560Sjhb int error=0; 113037785Smsmith 113137785Smsmith#ifdef CS_DEBUG 1132162321Sglebius if_printf(ifp, "%s command=%lx\n", __func__, command); 113337785Smsmith#endif 113437785Smsmith 113537785Smsmith switch (command) { 113637785Smsmith case SIOCSIFFLAGS: 113737785Smsmith /* 113837785Smsmith * Switch interface state between "running" and 113937785Smsmith * "stopped", reflecting the UP flag. 1140140927Simp */ 1141179560Sjhb CS_LOCK(sc); 1142147256Sbrooks if (sc->ifp->if_flags & IFF_UP) { 1143148887Srwatson if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)==0) { 1144179560Sjhb cs_init_locked(sc); 1145140927Simp } 1146140927Simp } else { 1147148887Srwatson if ((sc->ifp->if_drv_flags & IFF_DRV_RUNNING)!=0) { 1148140927Simp cs_stop(sc); 1149140927Simp } 1150179560Sjhb } 115137785Smsmith /* 115237785Smsmith * Promiscuous and/or multicast flags may have changed, 115337785Smsmith * so reprogram the multicast filter and/or receive mode. 115437785Smsmith * 115537785Smsmith * See note about multicasts in cs_setmode 115637785Smsmith */ 115737785Smsmith cs_setmode(sc); 1158179560Sjhb CS_UNLOCK(sc); 115937785Smsmith break; 116037785Smsmith 116137785Smsmith case SIOCADDMULTI: 116237785Smsmith case SIOCDELMULTI: 116337785Smsmith /* 116437785Smsmith * Multicast list has changed; set the hardware filter 116537785Smsmith * accordingly. 116637785Smsmith * 116737785Smsmith * See note about multicasts in cs_setmode 116837785Smsmith */ 1169179560Sjhb CS_LOCK(sc); 117037785Smsmith cs_setmode(sc); 1171179560Sjhb CS_UNLOCK(sc); 117237785Smsmith error = 0; 117337785Smsmith break; 117437785Smsmith 1175140927Simp case SIOCSIFMEDIA: 1176140927Simp case SIOCGIFMEDIA: 1177140927Simp error = ifmedia_ioctl(ifp, ifr, &sc->media, command); 1178140927Simp break; 117937785Smsmith 1180140927Simp default: 1181140921Simp error = ether_ioctl(ifp, command, data); 1182106937Ssam break; 1183140927Simp } 118437785Smsmith 1185140928Simp return (error); 118637785Smsmith} 118737785Smsmith 118837785Smsmith/* 118937785Smsmith * Device timeout/watchdog routine. Entered if the device neglects to 119037785Smsmith * generate an interrupt after a transmit has been started on it. 119137785Smsmith */ 119237785Smsmithstatic void 1193179560Sjhbcs_watchdog(void *arg) 119437785Smsmith{ 1195179560Sjhb struct cs_softc *sc = arg; 1196179560Sjhb struct ifnet *ifp = sc->ifp; 119737785Smsmith 1198179560Sjhb CS_ASSERT_LOCKED(sc); 1199179560Sjhb if (sc->tx_timeout && --sc->tx_timeout == 0) { 1200179560Sjhb ifp->if_oerrors++; 1201179560Sjhb log(LOG_ERR, "%s: device timeout\n", ifp->if_xname); 120237785Smsmith 1203179560Sjhb /* Reset the interface */ 1204179560Sjhb if (ifp->if_flags & IFF_UP) 1205179560Sjhb cs_reset(sc); 1206179560Sjhb else 1207179560Sjhb cs_stop(sc); 1208179560Sjhb } 1209179560Sjhb callout_reset(&sc->timer, hz, cs_watchdog, sc); 121037785Smsmith} 121137785Smsmith 121237785Smsmithstatic int 121337785Smsmithcs_mediachange(struct ifnet *ifp) 121437785Smsmith{ 121537785Smsmith struct cs_softc *sc = ifp->if_softc; 121637785Smsmith struct ifmedia *ifm = &sc->media; 1217179560Sjhb int error; 121837785Smsmith 121937785Smsmith if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 1220140928Simp return (EINVAL); 122137785Smsmith 1222179560Sjhb CS_LOCK(sc); 1223179560Sjhb error = cs_mediaset(sc, ifm->ifm_media); 1224179560Sjhb CS_UNLOCK(sc); 1225179560Sjhb return (error); 122637785Smsmith} 122737785Smsmith 122837785Smsmithstatic void 122937785Smsmithcs_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 123037785Smsmith{ 123137785Smsmith int line_status; 123237785Smsmith struct cs_softc *sc = ifp->if_softc; 123337785Smsmith 1234179560Sjhb CS_LOCK(sc); 123537785Smsmith ifmr->ifm_active = IFM_ETHER; 123672940Simp line_status = cs_readreg(sc, PP_LineST); 123737785Smsmith if (line_status & TENBASET_ON) { 123837785Smsmith ifmr->ifm_active |= IFM_10_T; 123937785Smsmith if (sc->chip_type != CS8900) { 124072940Simp if (cs_readreg(sc, PP_AutoNegST) & FDX_ACTIVE) 124137785Smsmith ifmr->ifm_active |= IFM_FDX; 124272940Simp if (cs_readreg(sc, PP_AutoNegST) & HDX_ACTIVE) 124337785Smsmith ifmr->ifm_active |= IFM_HDX; 124437785Smsmith } 124537785Smsmith ifmr->ifm_status = IFM_AVALID; 124637785Smsmith if (line_status & LINK_OK) 124737785Smsmith ifmr->ifm_status |= IFM_ACTIVE; 124837785Smsmith } else { 124938305Smsmith if (line_status & AUI_ON) { 125072940Simp cs_writereg(sc, PP_SelfCTL, cs_readreg(sc, PP_SelfCTL) | 125172940Simp HCB1_ENBL); 125238305Smsmith if (((sc->adapter_cnf & A_CNF_DC_DC_POLARITY)!=0)^ 125372940Simp (cs_readreg(sc, PP_SelfCTL) & HCB1)) 125438305Smsmith ifmr->ifm_active |= IFM_10_2; 125538305Smsmith else 125638305Smsmith ifmr->ifm_active |= IFM_10_5; 125738305Smsmith } 125837785Smsmith } 1259179560Sjhb CS_UNLOCK(sc); 126037785Smsmith} 126137785Smsmith 126237785Smsmithstatic int 126337785Smsmithcs_mediaset(struct cs_softc *sc, int media) 126437785Smsmith{ 1265179532Simp int error = 0; 126637785Smsmith 126737785Smsmith /* Stop the receiver & transmitter */ 126872940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) & 126972940Simp ~(SERIAL_RX_ON | SERIAL_TX_ON)); 127037785Smsmith 127137785Smsmith#ifdef CS_DEBUG 1272162321Sglebius device_printf(sc->dev, "%s media=%x\n", __func__, media); 127337785Smsmith#endif 127437785Smsmith 127537785Smsmith switch (IFM_SUBTYPE(media)) { 127637785Smsmith default: 127737785Smsmith case IFM_AUTO: 1278179553Simp /* 1279179553Simp * This chip makes it a little hard to support this, so treat 1280179553Simp * it as IFM_10_T, auto duplex. 1281179553Simp */ 1282179553Simp enable_tp(sc); 1283179553Simp cs_duplex_auto(sc); 128437785Smsmith break; 128537785Smsmith case IFM_10_T: 1286179532Simp enable_tp(sc); 128737785Smsmith if (media & IFM_FDX) 128837785Smsmith cs_duplex_full(sc); 128937785Smsmith else if (media & IFM_HDX) 129037785Smsmith cs_duplex_half(sc); 129137785Smsmith else 129237785Smsmith error = cs_duplex_auto(sc); 129337785Smsmith break; 129437785Smsmith case IFM_10_2: 129537785Smsmith error = enable_bnc(sc); 129637785Smsmith break; 129737785Smsmith case IFM_10_5: 129837785Smsmith error = enable_aui(sc); 129937785Smsmith break; 130037785Smsmith } 130137785Smsmith 130237785Smsmith /* 130337785Smsmith * Turn the transmitter & receiver back on 130437785Smsmith */ 130572940Simp cs_writereg(sc, PP_LineCTL, cs_readreg(sc, PP_LineCTL) | 130672940Simp SERIAL_RX_ON | SERIAL_TX_ON); 130737785Smsmith 1308140928Simp return (error); 130937785Smsmith} 1310