2 * 3c595.c -- 3COM 3C595 Fast Etherlink III PCI driver for etherboot
4 * Copyright (C) 2000 Shusuke Nisiyama <shu@athena.qe.eng.hokudai.ac.jp>
8 * This software may be used, modified, copied, distributed, and sold, in
9 * both source and binary form provided that the above copyright and these
10 * terms are retained. Under no circumstances are the authors responsible for
11 * the proper functioning of this software, nor do the authors assume any
12 * responsibility for damages incurred with its use.
14 * This code is based on Martin Renters' etherboot-4.4.3 3c509.c and
15 * Herb Peyerl's FreeBSD 3.4-RELEASE if_vx.c driver.
17 * Copyright (C) 1993-1994, David Greenman, Martin Renters.
18 * Copyright (C) 1993-1995, Andres Vega Garcia.
19 * Copyright (C) 1995, Serge Babkin.
21 * Copyright (c) 1994 Herb Peyerl <hpeyerl@novatel.ca>
23 * timlegge 08-24-2003 Add Multicast Support
26 FILE_LICENCE ( BSD2 );
30 #include "etherboot.h"
33 #include <ipxe/ethernet.h>
36 static struct nic_operations t595_operations;
38 static unsigned short eth_nic_base;
39 static unsigned short vx_connector, vx_connectors;
41 static struct connector_entry {
44 } conn_tab[VX_CONNECTORS] = {
45 #define CONNECTOR_UTP 0
47 #define CONNECTOR_AUI 1
51 #define CONNECTOR_BNC 3
53 #define CONNECTOR_TX 4
55 #define CONNECTOR_FX 5
57 #define CONNECTOR_MII 6
62 static void vxgetlink(void);
63 static void vxsetlink(void);
65 /**************************************************************************
66 ETH_RESET - Reset adapter
67 ***************************************************************************/
68 static void t595_reset(struct nic *nic)
72 /***********************************************************
74 *************************************************************/
77 outw(RX_DISABLE, BASE + VX_COMMAND);
78 outw(RX_DISCARD_TOP_PACK, BASE + VX_COMMAND);
80 outw(TX_DISABLE, BASE + VX_COMMAND);
81 outw(STOP_TRANSCEIVER, BASE + VX_COMMAND);
83 outw(RX_RESET, BASE + VX_COMMAND);
85 outw(TX_RESET, BASE + VX_COMMAND);
87 outw(C_INTR_LATCH, BASE + VX_COMMAND);
88 outw(SET_RD_0_MASK, BASE + VX_COMMAND);
89 outw(SET_INTR_MASK, BASE + VX_COMMAND);
90 outw(SET_RX_FILTER, BASE + VX_COMMAND);
99 /* Disable the card */
100 /* outw(0, BASE + VX_W0_CONFIG_CTRL); */
102 /* Configure IRQ to none */
103 /* outw(SET_IRQ(0), BASE + VX_W0_RESOURCE_CFG); */
105 /* Enable the card */
106 /* outw(ENABLE_DRQ_IRQ, BASE + VX_W0_CONFIG_CTRL); */
110 /* Reload the ether_addr. */
111 for (i = 0; i < ETH_ALEN; i++)
112 outb(nic->node_addr[i], BASE + VX_W2_ADDR_0 + i);
114 outw(RX_RESET, BASE + VX_COMMAND);
116 outw(TX_RESET, BASE + VX_COMMAND);
119 /* Window 1 is operating window */
121 for (i = 0; i < 31; i++)
122 inb(BASE + VX_W1_TX_STATUS);
124 outw(SET_RD_0_MASK | S_CARD_FAILURE | S_RX_COMPLETE |
125 S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND);
126 outw(SET_INTR_MASK | S_CARD_FAILURE | S_RX_COMPLETE |
127 S_TX_COMPLETE | S_TX_AVAIL, BASE + VX_COMMAND);
130 * Attempt to get rid of any stray interrupts that occurred during
131 * configuration. On the i386 this isn't possible because one may
132 * already be queued. However, a single stray interrupt is
136 outw(ACK_INTR | 0xff, BASE + VX_COMMAND);
138 outw(SET_RX_FILTER | FIL_INDIVIDUAL |
139 FIL_BRDCST|FIL_MULTICAST, BASE + VX_COMMAND);
146 j = inl(BASE + VX_W3_INTERNAL_CFG) & ~INTERNAL_CONNECTOR_MASK;
147 outl(BASE + VX_W3_INTERNAL_CFG, j | (i <<INTERNAL_CONNECTOR_BITS));
149 outw(LINKBEAT_ENABLE, BASE + VX_W4_MEDIA_TYPE);
153 /* start tranciever and receiver */
154 outw(RX_ENABLE, BASE + VX_COMMAND);
155 outw(TX_ENABLE, BASE + VX_COMMAND);
159 /**************************************************************************
160 ETH_TRANSMIT - Transmit a frame
161 ***************************************************************************/
162 static char padmap[] = {
165 static void t595_transmit(
167 const char *d, /* Destination */
168 unsigned int t, /* Type */
169 unsigned int s, /* size */
170 const char *p) /* Packet */
177 printf("{l=%d,t=%hX}",s+ETH_HLEN,t);
180 /* swap bytes of type */
183 len=s+ETH_HLEN; /* actual length of packet */
184 pad = padmap[len & 3];
187 * The 3c595 automatically pads short packets to minimum ethernet length,
188 * but we drop packets that are too large. Perhaps we should truncate
191 if (len + pad > ETH_FRAME_LEN) {
195 /* drop acknowledgements */
196 while(( status=inb(BASE + VX_W1_TX_STATUS) )& TXS_COMPLETE ) {
197 if(status & (TXS_UNDERRUN|TXS_MAX_COLLISION|TXS_STATUS_OVERFLOW)) {
198 outw(TX_RESET, BASE + VX_COMMAND);
199 outw(TX_ENABLE, BASE + VX_COMMAND);
202 outb(0x0, BASE + VX_W1_TX_STATUS);
205 while (inw(BASE + VX_W1_FREE_TX) < len + pad + 4) {
206 /* no room in FIFO */
209 outw(len, BASE + VX_W1_TX_PIO_WR_1);
210 outw(0x0, BASE + VX_W1_TX_PIO_WR_1); /* Second dword meaningless */
213 outsw(BASE + VX_W1_TX_PIO_WR_1, d, ETH_ALEN/2);
214 outsw(BASE + VX_W1_TX_PIO_WR_1, nic->node_addr, ETH_ALEN/2);
215 outw(t, BASE + VX_W1_TX_PIO_WR_1);
216 outsw(BASE + VX_W1_TX_PIO_WR_1, p, s / 2);
218 outb(*(p+s - 1), BASE + VX_W1_TX_PIO_WR_1);
221 outb(0, BASE + VX_W1_TX_PIO_WR_1); /* Padding */
223 /* wait for Tx complete */
224 while((inw(BASE + VX_STATUS) & S_COMMAND_IN_PROGRESS) != 0)
228 /**************************************************************************
229 ETH_POLL - Wait for a frame
230 ***************************************************************************/
231 static int t595_poll(struct nic *nic, int retrieve)
233 /* common variables */
234 /* variables for 3C595 */
236 register short rx_fifo;
238 cst=inw(BASE + VX_STATUS);
245 if( (cst & S_RX_COMPLETE)==0 ) {
246 /* acknowledge everything */
247 outw(ACK_INTR | cst, BASE + VX_COMMAND);
248 outw(C_INTR_LATCH, BASE + VX_COMMAND);
253 status = inw(BASE + VX_W1_RX_STATUS);
255 printf("*%hX*",status);
258 if (status & ERR_RX) {
259 outw(RX_DISCARD_TOP_PACK, BASE + VX_COMMAND);
263 rx_fifo = status & RX_BYTES_MASK;
267 if ( ! retrieve ) return 1;
271 printf("[l=%d",rx_fifo);
273 insw(BASE + VX_W1_RX_PIO_RD_1, nic->packet, rx_fifo / 2);
275 nic->packet[rx_fifo-1]=inb(BASE + VX_W1_RX_PIO_RD_1);
276 nic->packetlen=rx_fifo;
279 status = inw(BASE + VX_W1_RX_STATUS);
281 printf("*%hX*",status);
283 rx_fifo = status & RX_BYTES_MASK;
286 insw(BASE + VX_W1_RX_PIO_RD_1, nic->packet+nic->packetlen, rx_fifo / 2);
288 nic->packet[nic->packetlen+rx_fifo-1]=inb(BASE + VX_W1_RX_PIO_RD_1);
289 nic->packetlen+=rx_fifo;
291 printf("+%d",rx_fifo);
294 if(( status & RX_INCOMPLETE )==0) {
296 printf("=%d",nic->packetlen);
303 /* acknowledge reception of packet */
304 outw(RX_DISCARD_TOP_PACK, BASE + VX_COMMAND);
305 while (inw(BASE + VX_STATUS) & S_COMMAND_IN_PROGRESS);
308 unsigned short type = 0; /* used by EDEBUG */
309 type = (nic->packet[12]<<8) | nic->packet[13];
310 if(nic->packet[0]+nic->packet[1]+nic->packet[2]+nic->packet[3]+nic->packet[4]+
311 nic->packet[5] == 0xFF*ETH_ALEN)
312 printf(",t=%hX,b]",type);
314 printf(",t=%hX]",type);
321 /*************************************************************************
322 3Com 595 - specific routines
323 **************************************************************************/
330 for (i = 0; is_eeprom_busy(BASE) && i < MAX_EEPROMBUSY; i++)
332 if (i >= MAX_EEPROMBUSY) {
333 /* printf("3c595: eeprom failed to come ready.\n"); */
334 printf("3c595: eeprom is busy.\n"); /* memory in EPROM is tight */
341 * get_e: gets a 16 bits word from the EEPROM. we must have set the window
350 outw(EEPROM_CMD_RD | offset, BASE + VX_W0_EEPROM_COMMAND);
353 return (inw(BASE + VX_W0_EEPROM_DATA));
362 vx_connectors = inw(BASE + VX_W3_RESET_OPT) & 0x7f;
363 for (n = 0, k = 0; k < VX_CONNECTORS; k++) {
364 if (vx_connectors & conn_tab[k].bit) {
368 printf("%s", conn_tab[k].name );
372 if (vx_connectors == 0) {
373 printf("no connectors!");
377 vx_connector = (inl(BASE + VX_W3_INTERNAL_CFG)
378 & INTERNAL_CONNECTOR_MASK)
379 >> INTERNAL_CONNECTOR_BITS;
380 if (vx_connector & 0x10) {
381 vx_connector &= 0x0f;
382 printf("[*%s*]", conn_tab[vx_connector].name);
383 printf(": disable 'auto select' with DOS util!");
385 printf("[*%s*]", conn_tab[vx_connector].name);
393 char *reason, *warning;
394 static char prev_conn = -1;
396 if (prev_conn == -1) {
397 prev_conn = vx_connector;
400 i = vx_connector; /* default in EEPROM */
404 if ((vx_connectors & conn_tab[vx_connector].bit) == 0) {
405 warning = "strange connector type in EEPROM.";
411 printf("warning: %s\n", warning);
413 printf("selected %s. (%s)\n", conn_tab[i].name, reason);
415 /* Set the selected connector. */
417 j = inl(BASE + VX_W3_INTERNAL_CFG) & ~INTERNAL_CONNECTOR_MASK;
418 outl(j | (i <<INTERNAL_CONNECTOR_BITS), BASE + VX_W3_INTERNAL_CFG);
420 /* First, disable all. */
421 outw(STOP_TRANSCEIVER, BASE + VX_COMMAND);
424 outw(0, BASE + VX_W4_MEDIA_TYPE);
426 /* Second, enable the selected one. */
430 outw(ENABLE_UTP, BASE + VX_W4_MEDIA_TYPE);
433 outw(START_TRANSCEIVER,BASE + VX_COMMAND);
439 outw(LINKBEAT_ENABLE, BASE + VX_W4_MEDIA_TYPE);
441 default: /* AUI and MII fall here */
447 static void t595_disable ( struct nic *nic ) {
451 outw(STOP_TRANSCEIVER, BASE + VX_COMMAND);
454 outw(0, BASE + VX_W4_MEDIA_TYPE);
458 static void t595_irq(struct nic *nic __unused, irq_action_t action __unused)
470 /**************************************************************************
471 ETH_PROBE - Look for an adapter
472 ***************************************************************************/
473 static int t595_probe ( struct nic *nic, struct pci_device *pci ) {
478 if (pci->ioaddr == 0)
480 eth_nic_base = pci->ioaddr;
483 nic->ioaddr = pci->ioaddr;
486 outw(GLOBAL_RESET, BASE + VX_COMMAND);
493 for (i = 0; i < (EEPROMSIZE/2); i++) {
494 printf("%hX:", get_e(i));
499 * Read the station address from the eeprom
501 p = (unsigned short *) nic->node_addr;
502 for (i = 0; i < 3; i++) {
504 p[i] = htons(get_e(EEPROM_OEM_ADDR_0 + i));
506 outw(ntohs(p[i]), BASE + VX_W2_ADDR_0 + (i * 2));
509 DBG ( "Ethernet address: %s\n", eth_ntoa (nic->node_addr) );
512 nic->nic_op = &t595_operations;
517 static struct nic_operations t595_operations = {
518 .connect = dummy_connect,
520 .transmit = t595_transmit,
525 static struct pci_device_id t595_nics[] = {
526 PCI_ROM(0x10b7, 0x5900, "3c590", "3Com590", 0), /* Vortex 10Mbps */
527 PCI_ROM(0x10b7, 0x5950, "3c595", "3Com595", 0), /* Vortex 100baseTx */
528 PCI_ROM(0x10b7, 0x5951, "3c595-1", "3Com595", 0), /* Vortex 100baseT4 */
529 PCI_ROM(0x10b7, 0x5952, "3c595-2", "3Com595", 0), /* Vortex 100base-MII */
530 PCI_ROM(0x10b7, 0x9000, "3c900-tpo", "3Com900-TPO", 0), /* 10 Base TPO */
531 PCI_ROM(0x10b7, 0x9001, "3c900-t4", "3Com900-Combo", 0), /* 10/100 T4 */
532 PCI_ROM(0x10b7, 0x9004, "3c900b-tpo", "3Com900B-TPO", 0), /* 10 Base TPO */
533 PCI_ROM(0x10b7, 0x9005, "3c900b-combo", "3Com900B-Combo", 0), /* 10 Base Combo */
534 PCI_ROM(0x10b7, 0x9006, "3c900b-tpb2", "3Com900B-2/T", 0), /* 10 Base TP and Base2 */
535 PCI_ROM(0x10b7, 0x900a, "3c900b-fl", "3Com900B-FL", 0), /* 10 Base F */
536 PCI_ROM(0x10b7, 0x9800, "3c980-cyclone-1", "3Com980-Cyclone", 0), /* Cyclone */
537 PCI_ROM(0x10b7, 0x9805, "3c9805-1", "3Com9805", 0), /* Dual Port Server Cyclone */
538 PCI_ROM(0x10b7, 0x7646, "3csoho100-tx-1", "3CSOHO100-TX", 0), /* Hurricane */
539 PCI_ROM(0x10b7, 0x4500, "3c450-1", "3Com450 HomePNA Tornado", 0),
542 PCI_DRIVER ( t595_driver, t595_nics, PCI_NO_CLASS );
544 DRIVER ( "3C595", nic_driver, pci_driver, t595_driver,
545 t595_probe, t595_disable );