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minix/drivers/lance/lance.c

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Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
/*
* lance.c
*
* This file contains a ethernet device driver for AMD LANCE based ethernet
* cards.
*
* The valid messages and their parameters are:
*
* m_type DL_PORT DL_PROC DL_COUNT DL_MODE DL_ADDR
* |------------+----------+---------+----------+---------+---------|
* | HARDINT | | | | | |
* |------------|----------|---------|----------|---------|---------|
* | DL_WRITE | port nr | proc nr | count | mode | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_WRITEV | port nr | proc nr | count | mode | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_READ | port nr | proc nr | count | | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_READV | port nr | proc nr | count | | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_INIT | port nr | proc nr | mode | | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_GETSTAT | port nr | proc nr | | | address |
* |------------|----------|---------|----------|---------|---------|
* | DL_STOP | port_nr | | | | |
* |------------|----------|---------|----------|---------|---------|
*
* The messages sent are:
*
* m-type DL_POR T DL_PROC DL_COUNT DL_STAT DL_CLCK
* |------------|----------|---------|----------|---------|---------|
* |DL_TASK_REPL| port nr | proc nr | rd-count | err|stat| clock |
* |------------|----------|---------|----------|---------|---------|
*
* m_type m3_i1 m3_i2 m3_ca1
* |------------+---------+-----------+---------------|
* |DL_INIT_REPL| port nr | last port | ethernet addr |
* |------------|---------|-----------|---------------|
*
* Created: Jul 27, 2002 by Kazuya Kodama <kazuya@nii.ac.jp>
Joren l'Ami 's patch to check for <16MB
2005-09-05 20:01:56 +02:00
* Adapted for Minix 3: Sep 05, 2005 by Joren l'Ami <jwlami@cs.vu.nl>
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
*/
#define VERBOSE 0
#include "../drivers.h"
#include <minix/keymap.h>
#include <net/hton.h>
#include <net/gen/ether.h>
#include <net/gen/eth_io.h>
#include <assert.h>
#include <minix/syslib.h>
#include "lance.h"
#include "../libpci/pci.h"
/*#include "proc.h"*/
#include <sys/ioc_memory.h>
Joren l'Ami 's patch to check for <16MB
2005-09-05 20:01:56 +02:00
/* new I/O functions in Minix 3 */
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
#define out_byte( x, y ) sys_outb( x, y )
#define out_word( x, y ) sys_outw( x, y )
static U8_t in_byte(U16_t port)
{
U8_t value;
int s;
if ((s=sys_inb(port, &value)) != OK)
printf( "lance: warning, sys_inb failed: %d\n", s );
return value;
}
static U16_t in_word( U16_t port)
{
U16_t value;
int s;
if ((s=sys_inw(port, &value)) != OK)
printf( "lance: warning, sys_inw failed: %d\n", s );
return value;
}
/*
#define in_byte( x ) inb( x )
#define in_word( x ) inw( x )
*/
static ether_card_t ec_table[EC_PORT_NR_MAX];
static int eth_tasknr= ANY;
static u16_t eth_ign_proto;
/* Configuration */
typedef struct ec_conf
{
port_t ec_port;
int ec_irq;
phys_bytes ec_mem;
char *ec_envvar;
} ec_conf_t;
/* We hardly use these. Just "LANCE0=on/off" "LANCE1=on/off" mean. */
ec_conf_t ec_conf[]= /* Card addresses */
{
/* I/O port, IRQ, Buffer address, Env. var, Buf selector. */
{ 0x1000, 9, 0x00000, "LANCE0" },
{ 0xD000, 15, 0x00000, "LANCE1" },
};
/* Actually, we use PCI-BIOS info. */
PRIVATE struct pcitab
{
u16_t vid;
u16_t did;
int checkclass;
} pcitab[]=
{
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE, 0 }, /* AMD LANCE */
{ 0x0000, 0x0000, 0 }
};
/*
struct pci_device pci_dev_list[] = {
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE,
"AMD Lance/PCI", 0, 0, 0, 0, 0, 0},
{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_LANCE,
"AMD Lance/PCI", 0, 0, 0, 0, 0, 0},
{0, 0, NULL, 0, 0, 0, 0, 0, 0}
};
*/
/* General */
_PROTOTYPE( static void do_init, (message *mp) );
_PROTOTYPE( static void ec_init, (ether_card_t *ec) );
_PROTOTYPE( static void ec_confaddr, (ether_card_t *ec) );
_PROTOTYPE( static void ec_reinit, (ether_card_t *ec) );
_PROTOTYPE( static void ec_check_ints, (ether_card_t *ec) );
_PROTOTYPE( static void conf_hw, (ether_card_t *ec) );
/*_PROTOTYPE( static int ec_handler, (irq_hook_t *hook) );*/
_PROTOTYPE( static void update_conf, (ether_card_t *ec, ec_conf_t *ecp) );
_PROTOTYPE( static void mess_reply, (message *req, message *reply) );
_PROTOTYPE( static void do_int, (ether_card_t *ec) );
_PROTOTYPE( static void reply,
(ether_card_t *ec, int err, int may_block) );
_PROTOTYPE( static void ec_reset, (ether_card_t *ec) );
_PROTOTYPE( static void ec_send, (ether_card_t *ec) );
_PROTOTYPE( static void ec_recv, (ether_card_t *ec) );
_PROTOTYPE( static void do_vwrite,
(message *mp, int from_int, int vectored) );
_PROTOTYPE( static void do_vread, (message *mp, int vectored) );
_PROTOTYPE( static void get_userdata,
(int user_proc, vir_bytes user_addr,
vir_bytes count, void *loc_addr) );
_PROTOTYPE( static void ec_user2nic,
(ether_card_t *dep, iovec_dat_t *iovp,
vir_bytes offset, int nic_addr,
vir_bytes count) );
_PROTOTYPE( static void ec_nic2user,
(ether_card_t *ec, int nic_addr,
iovec_dat_t *iovp, vir_bytes offset,
vir_bytes count) );
_PROTOTYPE( static int calc_iovec_size, (iovec_dat_t *iovp) );
_PROTOTYPE( static void ec_next_iovec, (iovec_dat_t *iovp) );
_PROTOTYPE( static void do_getstat, (message *mp) );
_PROTOTYPE( static void put_userdata,
(int user_proc,
vir_bytes user_addr, vir_bytes count,
void *loc_addr) );
_PROTOTYPE( static void do_stop, (message *mp) );
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
_PROTOTYPE( static void do_getname, (message *mp) );
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
_PROTOTYPE( static void lance_dump, (void) );
_PROTOTYPE( static void lance_stop, (void) );
_PROTOTYPE( static void getAddressing, (int devind, ether_card_t *ec) );
/* probe+init LANCE cards */
_PROTOTYPE( static int lance_probe, (ether_card_t *ec) );
_PROTOTYPE( static void lance_init_card, (ether_card_t *ec) );
/* --- LANCE --- */
/* General */
#define Address unsigned long
Joren l'Ami 's patch to check for <16MB
2005-09-05 20:01:56 +02:00
/* Minix 3 */
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
#define virt_to_bus(x) (vir2phys((unsigned long)x))
unsigned long vir2phys( unsigned long x )
{
int r;
unsigned long value;
if ( (r=sys_umap( SELF, D, x, 4, &value )) != OK )
panic( "lance", "sys_umap failed", r );
return value;
}
Joren l'Ami 's patch to check for <16MB
2005-09-05 20:01:56 +02:00
/* DMA limitations */
#define DMA_ADDR_MASK 0xFFFFFF /* mask to verify DMA address is 24-bit */
#define CORRECT_DMA_MEM() ( (virt_to_bus(lance + sizeof(lance)) & ~DMA_ADDR_MASK) == 0 )
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
#define ETH_FRAME_LEN 1518
#define LANCE_MUST_PAD 0x00000001
#define LANCE_ENABLE_AUTOSELECT 0x00000002
#define LANCE_SELECT_PHONELINE 0x00000004
#define LANCE_MUST_UNRESET 0x00000008
static const struct lance_chip_type
{
int id_number;
const char *name;
int flags;
} chip_table[] = {
{0x0000, "LANCE 7990", /* Ancient lance chip. */
LANCE_MUST_PAD + LANCE_MUST_UNRESET},
{0x0003, "PCnet/ISA 79C960", /* 79C960 PCnet/ISA. */
LANCE_ENABLE_AUTOSELECT},
{0x2260, "PCnet/ISA+ 79C961", /* 79C961 PCnet/ISA+, Plug-n-Play. */
LANCE_ENABLE_AUTOSELECT},
{0x2420, "PCnet/PCI 79C970", /* 79C970 or 79C974 PCnet-SCSI, PCI. */
LANCE_ENABLE_AUTOSELECT},
{0x2430, "PCnet32", /* 79C965 PCnet for VL bus. */
LANCE_ENABLE_AUTOSELECT},
{0x2621, "PCnet/PCI-II 79C970A", /* 79C970A PCInetPCI II. */
LANCE_ENABLE_AUTOSELECT},
{0x2625, "PCnet-FAST III 79C973",/* 79C973 PCInet-FAST III. */
LANCE_ENABLE_AUTOSELECT},
{0x2626, "PCnet/HomePNA 79C978",
LANCE_ENABLE_AUTOSELECT|LANCE_SELECT_PHONELINE},
{0x0, "PCnet (unknown)",
LANCE_ENABLE_AUTOSELECT},
};
/* ############## for LANCE device ############## */
#define LANCE_ETH_ADDR 0x0
#define LANCE_DATA 0x10
#define LANCE_ADDR 0x12
#define LANCE_RESET 0x14
#define LANCE_BUS_IF 0x16
#define LANCE_TOTAL_SIZE 0x18
/* Use 2^4=16 {Rx,Tx} buffers */
#define LANCE_LOG_RX_BUFFERS 4
#define RX_RING_SIZE (1 << (LANCE_LOG_RX_BUFFERS))
#define RX_RING_MOD_MASK (RX_RING_SIZE - 1)
#define RX_RING_LEN_BITS ((LANCE_LOG_RX_BUFFERS) << 29)
#define LANCE_LOG_TX_BUFFERS 4
#define TX_RING_SIZE (1 << (LANCE_LOG_TX_BUFFERS))
#define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
#define TX_RING_LEN_BITS ((LANCE_LOG_TX_BUFFERS) << 29)
/* for lance_interface */
struct lance_init_block
{
unsigned short mode;
unsigned char phys_addr[6];
unsigned long filter[2];
Address rx_ring;
Address tx_ring;
};
struct lance_rx_head
{
union {
Address base;
unsigned char addr[4];
} u;
short buf_length; /* 2s complement */
short msg_length;
};
struct lance_tx_head
{
union {
Address base;
unsigned char addr[4];
} u;
short buf_length; /* 2s complement */
short misc;
};
struct lance_interface
{
struct lance_init_block init_block;
struct lance_rx_head rx_ring[RX_RING_SIZE];
struct lance_tx_head tx_ring[TX_RING_SIZE];
unsigned char rbuf[RX_RING_SIZE][ETH_FRAME_LEN];
unsigned char tbuf[TX_RING_SIZE][ETH_FRAME_LEN];
};
/* =============== global variables =============== */
static struct lance_interface *lp;
static char lance[sizeof(struct lance_interface)+8];
static int rx_slot_nr = 0; /* Rx-slot number */
static int tx_slot_nr = 0; /* Tx-slot number */
static int cur_tx_slot_nr = 0; /* Tx-slot number */
static char isstored[TX_RING_SIZE]; /* Tx-slot in-use */
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
static char *progname;
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
/*===========================================================================*
* lance_task *
*===========================================================================*/
void main( int argc, char **argv )
{
message m;
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
int i,irq,r, tasknr;
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
ether_card_t *ec;
long v;
int fkeys, sfkeys;
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
(progname=strrchr(argv[0],'/')) ? progname++ : (progname=argv[0]);
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
env_setargs( argc, argv );
fkeys = sfkeys = 0; bit_set( sfkeys, 7 );
if ( (r = fkey_map(&fkeys, &sfkeys)) != OK )
printf( "Error registering key\n" );
if((eth_tasknr=getprocnr()) < 0)
panic("lance","couldn't get own proc nr", i);
v= 0;
(void) env_parse("ETH_IGN_PROTO", "x", 0, &v, 0x0000L, 0xFFFFL);
eth_ign_proto= htons((u16_t) v);
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
/* Try to notify inet that we are present (again) */
r = findproc("inet", &tasknr);
if (r == OK)
notify(tasknr);
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
while (TRUE)
{
for (i=0;i<EC_PORT_NR_MAX;++i)
{
ec= &ec_table[i];
if (ec->ec_irq != 0)
sys_irqenable(&ec->ec_hook);
}
if ((r= receive(ANY, &m)) != OK)
panic( "lance", "receive failed", r);
for (i=0;i<EC_PORT_NR_MAX;++i)
{
ec= &ec_table[i];
if (ec->ec_irq != 0)
sys_irqdisable(&ec->ec_hook);
}
/*printf( "." );*/
switch (m.m_type){
Added replies to status requests from RS.
2005-10-21 16:39:21 +02:00
case DEV_PING: notify(m.m_source); continue;
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
case DL_WRITE: do_vwrite(&m, FALSE, FALSE); break;
case DL_WRITEV: do_vwrite(&m, FALSE, TRUE); break;
case DL_READ: do_vread(&m, FALSE); break;
case DL_READV: do_vread(&m, TRUE); break;
case DL_INIT: do_init(&m); break;
case DL_GETSTAT: do_getstat(&m); break;
case DL_STOP: do_stop(&m); break;
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
case DL_GETNAME: do_getname(&m); break;
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
case FKEY_PRESSED: lance_dump(); break;
/*case HARD_STOP: lance_stop(); break;*/
case SYS_SIG:
{
sigset_t set = m.NOTIFY_ARG;
if ( sigismember( &set, SIGKSTOP ) )
lance_stop();
}
break;
case HARD_INT:
for (i=0;i<EC_PORT_NR_MAX;++i)
{
ec= &ec_table[i];
if (ec->mode != EC_ENABLED)
continue;
/*
printf( "#.\n" );
*/
irq=ec->ec_irq;
/*if (ec->ec_int_pending)*/
{
ec->ec_int_pending = 0;
ec_check_ints(ec);
do_int(ec);
}
}
break;
default:
panic( "lance", "illegal message", m.m_type);
}
}
}
/*===========================================================================*
* lance_dump *
*===========================================================================*/
static void lance_dump()
{
ether_card_t *ec;
int i, isr;
unsigned short ioaddr;
printf("\n");
for (i= 0, ec = &ec_table[0]; i<EC_PORT_NR_MAX; i++, ec++)
{
if (ec->mode == EC_DISABLED)
printf("lance port %d is disabled\n", i);
else if (ec->mode == EC_SINK)
printf("lance port %d is in sink mode\n", i);
if (ec->mode != EC_ENABLED)
continue;
printf("lance statistics of port %d:\n", i);
printf("recvErr :%8ld\t", ec->eth_stat.ets_recvErr);
printf("sendErr :%8ld\t", ec->eth_stat.ets_sendErr);
printf("OVW :%8ld\n", ec->eth_stat.ets_OVW);
printf("CRCerr :%8ld\t", ec->eth_stat.ets_CRCerr);
printf("frameAll :%8ld\t", ec->eth_stat.ets_frameAll);
printf("missedP :%8ld\n", ec->eth_stat.ets_missedP);
printf("packetR :%8ld\t", ec->eth_stat.ets_packetR);
printf("packetT :%8ld\t", ec->eth_stat.ets_packetT);
printf("transDef :%8ld\n", ec->eth_stat.ets_transDef);
printf("collision :%8ld\t", ec->eth_stat.ets_collision);
printf("transAb :%8ld\t", ec->eth_stat.ets_transAb);
printf("carrSense :%8ld\n", ec->eth_stat.ets_carrSense);
printf("fifoUnder :%8ld\t", ec->eth_stat.ets_fifoUnder);
printf("fifoOver :%8ld\t", ec->eth_stat.ets_fifoOver);
printf("CDheartbeat:%8ld\n", ec->eth_stat.ets_CDheartbeat);
printf("OWC :%8ld\t", ec->eth_stat.ets_OWC);
ioaddr = ec->ec_port;
out_word(ioaddr+LANCE_ADDR, 0x00);
isr=in_word(ioaddr+LANCE_DATA);
printf("isr = 0x%x + 0x%x, flags = 0x%x\n", isr,
in_word(ioaddr+LANCE_DATA), ec->flags);
printf("irq = %d\tioadr = %d\n", ec->ec_irq, ec->ec_port);
}
}
/*===========================================================================*
* lance_stop *
*===========================================================================*/
static void lance_stop()
{
message mess;
int i;
for (i= 0; i<EC_PORT_NR_MAX; i++)
{
if (ec_table[i].mode != EC_ENABLED)
continue;
mess.m_type= DL_STOP;
mess.DL_PORT= i;
do_stop(&mess);
}
/*printf("LANCE driver stopped.\n");*/
sys_exit( 0 );
}
/*===========================================================================*
* do_init *
*===========================================================================*/
static void do_init(mp)
message *mp;
{
int port;
ether_card_t *ec;
message reply_mess;
pci_init();
port = mp->DL_PORT;
if (port < 0 || port >= EC_PORT_NR_MAX)
{
reply_mess.m_type= DL_INIT_REPLY;
reply_mess.m3_i1= ENXIO;
mess_reply(mp, &reply_mess);
return;
}
ec= &ec_table[port];
strcpy(ec->port_name, "eth_card#0");
ec->port_name[9] += port;
if (ec->mode == EC_DISABLED)
{
/* This is the default, try to (re)locate the device. */
Joren l'Ami 's patch to check for <16MB
2005-09-05 20:01:56 +02:00
/* only try to enable if memory is correct for DMA */
if ( CORRECT_DMA_MEM() )
{
conf_hw(ec);
}
else
{
report( "LANCE", "DMA denied because address out of range", NO_NUM );
}
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
if (ec->mode == EC_DISABLED)
{
/* Probe failed, or the device is configured off. */
reply_mess.m_type= DL_INIT_REPLY;
reply_mess.m3_i1= ENXIO;
mess_reply(mp, &reply_mess);
return;
}
if (ec->mode == EC_ENABLED)
ec_init(ec);
}
if (ec->mode == EC_SINK)
{
ec->mac_address.ea_addr[0] =
ec->mac_address.ea_addr[1] =
ec->mac_address.ea_addr[2] =
ec->mac_address.ea_addr[3] =
ec->mac_address.ea_addr[4] =
ec->mac_address.ea_addr[5] = 0;
ec_confaddr(ec);
reply_mess.m_type = DL_INIT_REPLY;
reply_mess.m3_i1 = mp->DL_PORT;
reply_mess.m3_i2 = EC_PORT_NR_MAX;
*(ether_addr_t *) reply_mess.m3_ca1 = ec->mac_address;
mess_reply(mp, &reply_mess);
return;
}
assert(ec->mode == EC_ENABLED);
assert(ec->flags & ECF_ENABLED);
ec->flags &= ~(ECF_PROMISC | ECF_MULTI | ECF_BROAD);
if (mp->DL_MODE & DL_PROMISC_REQ)
ec->flags |= ECF_PROMISC | ECF_MULTI | ECF_BROAD;
if (mp->DL_MODE & DL_MULTI_REQ)
ec->flags |= ECF_MULTI;
if (mp->DL_MODE & DL_BROAD_REQ)
ec->flags |= ECF_BROAD;
ec->client = mp->m_source;
ec_reinit(ec);
reply_mess.m_type = DL_INIT_REPLY;
reply_mess.m3_i1 = mp->DL_PORT;
reply_mess.m3_i2 = EC_PORT_NR_MAX;
*(ether_addr_t *) reply_mess.m3_ca1 = ec->mac_address;
mess_reply(mp, &reply_mess);
}
/*===========================================================================*
* do_int *
*===========================================================================*/
static void do_int(ec)
ether_card_t *ec;
{
if (ec->flags & (ECF_PACK_SEND | ECF_PACK_RECV))
reply(ec, OK, TRUE);
}
#if 0
/*===========================================================================*
* ec_handler *
*===========================================================================*/
static int ec_handler(hook)
irq_hook_t *hook;
{
/* LANCE interrupt, send message and reenable interrupts. */
#if 0
printf(">> ec_handler(): \n");
#endif
structof(ether_card_t, ec_hook, hook)->ec_int_pending= 1;
Bogus notify() usage.
2005-09-27 21:05:42 +02:00
notify(eth_tasknr);
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
return 0;
}
#endif
/*===========================================================================*
* conf_hw *
*===========================================================================*/
static void conf_hw(ec)
ether_card_t *ec;
{
static eth_stat_t empty_stat = {0, 0, 0, 0, 0, 0 /* ,... */ };
int ifnr;
ec_conf_t *ecp;
ec->mode= EC_DISABLED; /* Superfluous */
ifnr= ec-ec_table;
ecp= &ec_conf[ifnr];
update_conf(ec, ecp);
if (ec->mode != EC_ENABLED)
return;
if (!lance_probe(ec))
{
printf("%s: No ethernet card found on PCI-BIOS info.\n",
ec->port_name);
ec->mode= EC_DISABLED;
return;
}
/* Allocate a memory segment, programmed I/O should set the
* memory segment (linmem) to zero.
*/
if (ec->ec_linmem != 0)
{
assert( 0 );
/*phys2seg(&ec->ec_memseg, &ec->ec_memoff, ec->ec_linmem);*/
}
/* XXX */ if (ec->ec_linmem == 0) ec->ec_linmem= 0xFFFF0000;
ec->flags = ECF_EMPTY;
ec->eth_stat = empty_stat;
}
/*===========================================================================*
* update_conf *
*===========================================================================*/
static void update_conf(ec, ecp)
ether_card_t *ec;
ec_conf_t *ecp;
{
long v;
static char ec_fmt[] = "x:d:x:x";
/* Get the default settings and modify them from the environment. */
ec->mode= EC_SINK;
v= ecp->ec_port;
switch (env_parse(ecp->ec_envvar, ec_fmt, 0, &v, 0x0000L, 0xFFFFL)) {
case EP_OFF:
ec->mode= EC_DISABLED;
break;
case EP_ON:
case EP_SET:
ec->mode= EC_ENABLED; /* Might become disabled if
* all probes fail */
break;
}
ec->ec_port= v;
v= ecp->ec_irq | DEI_DEFAULT;
(void) env_parse(ecp->ec_envvar, ec_fmt, 1, &v, 0L,
(long) NR_IRQ_VECTORS - 1);
ec->ec_irq= v;
v= ecp->ec_mem;
(void) env_parse(ecp->ec_envvar, ec_fmt, 2, &v, 0L, 0xFFFFFL);
ec->ec_linmem= v;
v= 0;
(void) env_parse(ecp->ec_envvar, ec_fmt, 3, &v, 0x2000L, 0x8000L);
ec->ec_ramsize= v;
}
/*===========================================================================*
* ec_init *
*===========================================================================*/
static void ec_init(ec)
ether_card_t *ec;
{
int i, r;
/* General initialization */
ec->flags = ECF_EMPTY;
/*disable_irq(ec->ec_irq);*/
lance_init_card(ec); /* Get mac_address, etc ...*/
ec_confaddr(ec);
#if VERBOSE
printf("%s: Ethernet address ", ec->port_name);
for (i= 0; i < 6; i++)
printf("%x%c", ec->mac_address.ea_addr[i],
i < 5 ? ':' : '\n');
#endif
/* Finish the initialization */
ec->flags |= ECF_ENABLED;
/* Set the interrupt handler */
/*put_irq_handler(&ec->ec_hook, ec->ec_irq, ec_handler);*/
ec->ec_hook = ec->ec_irq;
if ((r=sys_irqsetpolicy(ec->ec_irq, 0, &ec->ec_hook)) != OK)
printf("lance: error, couldn't set IRQ policy: %d\n", r);
/* enable_irq(ec->ec_irq); */
/* enter_kdebug(">> ec_init():"); */
return;
}
/*===========================================================================*
* reply *
*===========================================================================*/
static void reply(ec, err, may_block)
ether_card_t *ec;
int err;
int may_block;
{
message reply;
int status,r;
clock_t now;
status = 0;
if (ec->flags & ECF_PACK_SEND)
status |= DL_PACK_SEND;
if (ec->flags & ECF_PACK_RECV)
status |= DL_PACK_RECV;
reply.m_type = DL_TASK_REPLY;
reply.DL_PORT = ec - ec_table;
reply.DL_PROC = ec->client;
reply.DL_STAT = status | ((u32_t) err << 16);
reply.DL_COUNT = ec->read_s;
#if 1
if ((r=getuptime(&now)) != OK)
panic("lance", "getuptime() failed:", r);
reply.DL_CLCK = now;
#else
reply.DL_CLCK = 0;
#endif
r = send(ec->client, &reply);
#if 1
if (r == ELOCKED && may_block)
{
/* enter_kdebug(">> lance_task: ELOCKED!"); */
return;
}
#endif
if (r < 0)
panic( "lance", "send failed:", r);
ec->read_s = 0;
ec->flags &= ~(ECF_PACK_SEND | ECF_PACK_RECV);
}
/*===========================================================================*
* mess_reply *
*===========================================================================*/
static void mess_reply(req, reply_mess)
message *req;
message *reply_mess;
{
if (send(req->m_source, reply_mess) != OK)
panic( "lance", "unable to mess_reply", NO_NUM);
}
/*===========================================================================*
* ec_confaddr *
*===========================================================================*/
static void ec_confaddr(ec)
ether_card_t *ec;
{
int i;
char eakey[16];
static char eafmt[]= "x:x:x:x:x:x";
long v;
/* User defined ethernet address? */
strcpy(eakey, ec_conf[ec-ec_table].ec_envvar);
strcat(eakey, "_EA");
for (i= 0; i < 6; i++)
{
v= ec->mac_address.ea_addr[i];
if (env_parse(eakey, eafmt, i, &v, 0x00L, 0xFFL) != EP_SET)
break;
ec->mac_address.ea_addr[i]= v;
}
if (i != 0 && i != 6)
{
/* It's all or nothing; force a panic. */
(void) env_parse(eakey, "?", 0, &v, 0L, 0L);
}
}
/*===========================================================================*
* ec_reinit *
*===========================================================================*/
static void ec_reinit(ec)
ether_card_t *ec;
{
int i;
unsigned short ioaddr = ec->ec_port;
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x4); /* stop */
/* purge Tx-ring */
tx_slot_nr = cur_tx_slot_nr = 0;
for (i=0; i<TX_RING_SIZE; i++) {
lp->tx_ring[i].u.base = 0;
isstored[i]=0;
}
/* re-init Rx-ring */
rx_slot_nr = 0;
for (i=0; i<RX_RING_SIZE; i++)
{
lp->rx_ring[i].buf_length = -ETH_FRAME_LEN;
lp->rx_ring[i].u.addr[3] |= 0x80;
}
/* Set 'Receive Mode' */
if (ec->flags & ECF_PROMISC)
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x8000);
}
else
{
if (ec->flags & (ECF_BROAD | ECF_MULTI))
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x0000);
}
else
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x4000);
}
}
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x142); /* start && enable interrupt */
return;
}
/*===========================================================================*
* ec_check_ints *
*===========================================================================*/
static void ec_check_ints(ec)
ether_card_t *ec;
{
int must_restart=0;
int check,status;
int isr=0x0000;
unsigned short ioaddr = ec->ec_port;
if (!(ec->flags & ECF_ENABLED))
panic( "lance", "got premature interrupt", NO_NUM);
for (;;)
{
#if 0
printf("ETH: Reading ISR...");
#endif
out_word(ioaddr+LANCE_ADDR, 0x00);
isr=in_word(ioaddr+LANCE_DATA);
if (isr & 0x8600)
out_word( ioaddr+LANCE_DATA, isr & ~0x004f);
out_word(ioaddr+LANCE_DATA, 0x7940);
#if 0
printf("ISR=0x%x...",in_word(ioaddr+LANCE_DATA));
#endif
#define ISR_WINT 0x0200
#define ISR_RINT 0x0400
#define ISR_RERR 0x1000
#define ISR_WERR 0x4000
#define ISR_ERR 0x8000
#define ISR_RST 0x0000
if ((isr & (ISR_WINT|ISR_RINT|ISR_RERR|ISR_WERR|ISR_ERR)) == 0x0000)
{
#if 0
printf("OK\n");
#endif
break;
}
if (isr & ISR_RERR)
{
#if 0
printf("RERR\n");
#endif
ec->eth_stat.ets_recvErr++;
}
if ((isr & ISR_WERR) || (isr & ISR_WINT))
{
if (isr & ISR_WERR)
{
#if 0
printf("WERR\n");
#endif
ec->eth_stat.ets_sendErr++;
}
if (isr & ISR_WINT)
{
#if 0
printf("WINT\n");
#endif
/* status check: restart if needed. */
status = lp->tx_ring[cur_tx_slot_nr].u.base;
/* ??? */
if (status & 0x40000000)
{
status = lp->tx_ring[cur_tx_slot_nr].misc;
ec->eth_stat.ets_sendErr++;
if (status & 0x0400)
ec->eth_stat.ets_transAb++;
if (status & 0x0800)
ec->eth_stat.ets_carrSense++;
if (status & 0x1000)
ec->eth_stat.ets_OWC++;
if (status & 0x4000)
{
ec->eth_stat.ets_fifoUnder++;
must_restart=1;
}
}
else
{
if (status & 0x18000000)
ec->eth_stat.ets_collision++;
ec->eth_stat.ets_packetT++;
}
}
/* transmit a packet on the next slot if it exists. */
check = 0;
if (isstored[cur_tx_slot_nr]==1)
{
/* free the tx-slot just transmitted */
isstored[cur_tx_slot_nr]=0;
cur_tx_slot_nr = (++cur_tx_slot_nr) & TX_RING_MOD_MASK;
/* next tx-slot is ready? */
if (isstored[cur_tx_slot_nr]==1)
check=1;
else
check=0;
}
else
{
panic( "lance", "got premature WINT...", NO_NUM);
}
if (check==1)
{
lp->tx_ring[cur_tx_slot_nr].u.addr[3] = 0x83;
out_word(ioaddr+LANCE_ADDR, 0x0000);
out_word(ioaddr+LANCE_DATA, 0x0048);
}
else
if (check==-1)
continue;
/* we set a buffered message in the slot if it exists. */
/* and transmit it, if needed. */
if (ec->flags & ECF_SEND_AVAIL)
ec_send(ec);
}
if (isr & ISR_RINT)
{
#if 0
printf("RINT\n");
#endif
ec_recv(ec);
}
if (isr & ISR_RST)
{
ec->flags = ECF_STOPPED;
break;
}
/* ??? cf. lance driver on linux */
if (must_restart == 1)
{
#if 0
printf("ETH: restarting...\n");
#endif
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x4); /* stop */
out_word(ioaddr+LANCE_DATA, 0x2); /* start */
}
}
if ((ec->flags & (ECF_READING|ECF_STOPPED)) == (ECF_READING|ECF_STOPPED))
{
#if 0
printf("ETH: resetting...\n");
#endif
ec_reset(ec);
}
}
/*===========================================================================*
* ec_reset *
*===========================================================================*/
static void ec_reset(ec)
ether_card_t *ec;
{
/* Stop/start the chip, and clear all RX,TX-slots */
unsigned short ioaddr = ec->ec_port;
int i;
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x4); /* stop */
out_word(ioaddr+LANCE_DATA, 0x2); /* start */
/* purge Tx-ring */
tx_slot_nr = cur_tx_slot_nr = 0;
for (i=0; i<TX_RING_SIZE; i++) {
lp->tx_ring[i].u.base = 0;
isstored[i]=0;
}
/* re-init Rx-ring */
rx_slot_nr = 0;
for (i=0; i<RX_RING_SIZE; i++)
{
lp->rx_ring[i].buf_length = -ETH_FRAME_LEN;
lp->rx_ring[i].u.addr[3] |= 0x80;
}
/* store a buffered message on the slot if exists */
ec_send(ec);
ec->flags &= ~ECF_STOPPED;
}
/*===========================================================================*
* ec_send *
*===========================================================================*/
static void ec_send(ec)
ether_card_t *ec;
{
/* from ec_check_ints() or ec_reset(). */
/* this function proccesses the buffered message. (slot/transmit) */
if (!(ec->flags & ECF_SEND_AVAIL))
return;
ec->flags &= ~ECF_SEND_AVAIL;
switch(ec->sendmsg.m_type)
{
case DL_WRITE: do_vwrite(&ec->sendmsg, TRUE, FALSE); break;
case DL_WRITEV: do_vwrite(&ec->sendmsg, TRUE, TRUE); break;
default:
panic( "lance", "wrong type:", ec->sendmsg.m_type);
break;
}
}
/*===========================================================================*
* do_vread *
*===========================================================================*/
static void do_vread(mp, vectored)
message *mp;
int vectored;
{
int port, count, size;
ether_card_t *ec;
port = mp->DL_PORT;
count = mp->DL_COUNT;
ec= &ec_table[port];
ec->client= mp->DL_PROC;
if (vectored)
{
get_userdata(mp->DL_PROC, (vir_bytes) mp->DL_ADDR,
(count > IOVEC_NR ? IOVEC_NR : count) *
sizeof(iovec_t), ec->read_iovec.iod_iovec);
ec->read_iovec.iod_iovec_s = count;
ec->read_iovec.iod_proc_nr = mp->DL_PROC;
ec->read_iovec.iod_iovec_addr = (vir_bytes) mp->DL_ADDR;
ec->tmp_iovec = ec->read_iovec;
size= calc_iovec_size(&ec->tmp_iovec);
}
else
{
ec->read_iovec.iod_iovec[0].iov_addr = (vir_bytes) mp->DL_ADDR;
ec->read_iovec.iod_iovec[0].iov_size = mp->DL_COUNT;
ec->read_iovec.iod_iovec_s = 1;
ec->read_iovec.iod_proc_nr = mp->DL_PROC;
ec->read_iovec.iod_iovec_addr = 0;
size= count;
}
ec->flags |= ECF_READING;
ec_recv(ec);
if ((ec->flags & (ECF_READING|ECF_STOPPED)) == (ECF_READING|ECF_STOPPED))
ec_reset(ec);
reply(ec, OK, FALSE);
}
/*===========================================================================*
* ec_recv *
*===========================================================================*/
static void ec_recv(ec)
ether_card_t *ec;
{
vir_bytes length;
int packet_processed;
int status;
unsigned short ioaddr = ec->ec_port;
if ((ec->flags & ECF_READING)==0)
return;
if (!(ec->flags & ECF_ENABLED))
return;
/* we check all the received slots until find a properly received packet */
packet_processed = FALSE;
while (!packet_processed)
{
status = lp->rx_ring[rx_slot_nr].u.base >> 24;
if ( (status & 0x80) == 0x00 )
{
status = lp->rx_ring[rx_slot_nr].u.base >> 24;
/* ??? */
if (status != 0x03)
{
if (status & 0x01)
ec->eth_stat.ets_recvErr++;
if (status & 0x04)
ec->eth_stat.ets_fifoOver++;
if (status & 0x08)
ec->eth_stat.ets_CRCerr++;
if (status & 0x10)
ec->eth_stat.ets_OVW++;
if (status & 0x20)
ec->eth_stat.ets_frameAll++;
length = 0;
}
else
{
ec->eth_stat.ets_packetR++;
length = lp->rx_ring[rx_slot_nr].msg_length;
}
if (length > 0)
{
ec_nic2user(ec, (int)(lp->rbuf[rx_slot_nr]),
&ec->read_iovec, 0, length);
ec->read_s = length;
ec->flags |= ECF_PACK_RECV;
ec->flags &= ~ECF_READING;
packet_processed = TRUE;
}
/* set up this slot again, and we move to the next slot */
lp->rx_ring[rx_slot_nr].buf_length = -ETH_FRAME_LEN;
lp->rx_ring[rx_slot_nr].u.addr[3] |= 0x80;
out_word(ioaddr+LANCE_ADDR, 0x00);
out_word(ioaddr+LANCE_DATA, 0x7940);
rx_slot_nr = (++rx_slot_nr) & RX_RING_MOD_MASK;
}
else
break;
}
}
/*===========================================================================*
* do_vwrite *
*===========================================================================*/
static void do_vwrite(mp, from_int, vectored)
message *mp;
int from_int;
int vectored;
{
int port, count, check;
ether_card_t *ec;
unsigned short ioaddr;
port = mp->DL_PORT;
count = mp->DL_COUNT;
ec = &ec_table[port];
ec->client= mp->DL_PROC;
if (isstored[tx_slot_nr]==1)
{
/* all slots are used, so this message is buffered */
ec->sendmsg= *mp;
ec->flags |= ECF_SEND_AVAIL;
reply(ec, OK, FALSE);
return;
}
/* convert the message to write_iovec */
if (vectored)
{
get_userdata(mp->DL_PROC, (vir_bytes) mp->DL_ADDR,
(count > IOVEC_NR ? IOVEC_NR : count) *
sizeof(iovec_t), ec->write_iovec.iod_iovec);
ec->write_iovec.iod_iovec_s = count;
ec->write_iovec.iod_proc_nr = mp->DL_PROC;
ec->write_iovec.iod_iovec_addr = (vir_bytes) mp->DL_ADDR;
ec->tmp_iovec = ec->write_iovec;
ec->write_s = calc_iovec_size(&ec->tmp_iovec);
}
else
{
ec->write_iovec.iod_iovec[0].iov_addr = (vir_bytes) mp->DL_ADDR;
ec->write_iovec.iod_iovec[0].iov_size = mp->DL_COUNT;
ec->write_iovec.iod_iovec_s = 1;
ec->write_iovec.iod_proc_nr = mp->DL_PROC;
ec->write_iovec.iod_iovec_addr = 0;
ec->write_s = mp->DL_COUNT;
}
/* copy write_iovec to the slot on DMA address */
ec_user2nic(ec, &ec->write_iovec, 0,
(int)(lp->tbuf[tx_slot_nr]), ec->write_s);
/* set-up for transmitting, and transmit it if needed. */
lp->tx_ring[tx_slot_nr].buf_length = -ec->write_s;
lp->tx_ring[tx_slot_nr].misc = 0x0;
lp->tx_ring[tx_slot_nr].u.base
= virt_to_bus(lp->tbuf[tx_slot_nr]) & 0xffffff;
isstored[tx_slot_nr]=1;
if (cur_tx_slot_nr == tx_slot_nr)
check=1;
else
check=0;
tx_slot_nr = (++tx_slot_nr) & TX_RING_MOD_MASK;
if (check == 1)
{
ioaddr = ec->ec_port;
lp->tx_ring[cur_tx_slot_nr].u.addr[3] = 0x83;
out_word(ioaddr+LANCE_ADDR, 0x0000);
out_word(ioaddr+LANCE_DATA, 0x0048);
}
ec->flags |= ECF_PACK_SEND;
/* reply by calling do_int() if this function is called from interrupt. */
if (from_int)
return;
reply(ec, OK, FALSE);
}
/*===========================================================================*
* get_userdata *
*===========================================================================*/
static void get_userdata(user_proc, user_addr, count, loc_addr)
int user_proc;
vir_bytes user_addr;
vir_bytes count;
void *loc_addr;
{
/*
phys_bytes src;
src = numap_local(user_proc, user_addr, count);
if (!src)
panic( "lance", "umap failed", NO_NUM);
phys_copy(src, vir2phys(loc_addr), (phys_bytes) count);
*/
int cps;
cps = sys_datacopy(user_proc, user_addr, SELF, (vir_bytes) loc_addr, count);
if (cps != OK) printf("lance: warning, scopy failed: %d\n", cps);
}
/*===========================================================================*
* ec_user2nic *
*===========================================================================*/
static void ec_user2nic(ec, iovp, offset, nic_addr, count)
ether_card_t *ec;
iovec_dat_t *iovp;
vir_bytes offset;
int nic_addr;
vir_bytes count;
{
/*phys_bytes phys_hw, phys_user;*/
int bytes, i, r;
/*
phys_hw = vir2phys(nic_addr);
*/
i= 0;
while (count > 0)
{
if (i >= IOVEC_NR)
{
ec_next_iovec(iovp);
i= 0;
continue;
}
if (offset >= iovp->iod_iovec[i].iov_size)
{
offset -= iovp->iod_iovec[i].iov_size;
i++;
continue;
}
bytes = iovp->iod_iovec[i].iov_size - offset;
if (bytes > count)
bytes = count;
/*
phys_user = numap_local(iovp->iod_proc_nr,
iovp->iod_iovec[i].iov_addr + offset, bytes);
phys_copy(phys_user, phys_hw, (phys_bytes) bytes);
*/
if ( (r=sys_datacopy(iovp->iod_proc_nr, iovp->iod_iovec[i].iov_addr + offset,
SELF, nic_addr, count )) != OK )
panic( "lance", "sys_datacopy failed", r );
count -= bytes;
nic_addr += bytes;
offset += bytes;
}
}
/*===========================================================================*
* ec_nic2user *
*===========================================================================*/
static void ec_nic2user(ec, nic_addr, iovp, offset, count)
ether_card_t *ec;
int nic_addr;
iovec_dat_t *iovp;
vir_bytes offset;
vir_bytes count;
{
/*phys_bytes phys_hw, phys_user;*/
int bytes, i, r;
/*phys_hw = vir2phys(nic_addr);*/
i= 0;
while (count > 0)
{
if (i >= IOVEC_NR)
{
ec_next_iovec(iovp);
i= 0;
continue;
}
if (offset >= iovp->iod_iovec[i].iov_size)
{
offset -= iovp->iod_iovec[i].iov_size;
i++;
continue;
}
bytes = iovp->iod_iovec[i].iov_size - offset;
if (bytes > count)
bytes = count;
/*
phys_user = numap_local(iovp->iod_proc_nr,
iovp->iod_iovec[i].iov_addr + offset, bytes);
phys_copy(phys_hw, phys_user, (phys_bytes) bytes);
*/
if ( (r=sys_datacopy( SELF, nic_addr, iovp->iod_proc_nr, iovp->iod_iovec[i].iov_addr + offset, bytes )) != OK )
panic( "lance", "sys_datacopy failed: ", r );
count -= bytes;
nic_addr += bytes;
offset += bytes;
}
}
/*===========================================================================*
* calc_iovec_size *
*===========================================================================*/
static int calc_iovec_size(iovp)
iovec_dat_t *iovp;
{
int size,i;
size = i = 0;
while (i < iovp->iod_iovec_s)
{
if (i >= IOVEC_NR)
{
ec_next_iovec(iovp);
i= 0;
continue;
}
size += iovp->iod_iovec[i].iov_size;
i++;
}
return size;
}
/*===========================================================================*
* ec_next_iovec *
*===========================================================================*/
static void ec_next_iovec(iovp)
iovec_dat_t *iovp;
{
iovp->iod_iovec_s -= IOVEC_NR;
iovp->iod_iovec_addr += IOVEC_NR * sizeof(iovec_t);
get_userdata(iovp->iod_proc_nr, iovp->iod_iovec_addr,
(iovp->iod_iovec_s > IOVEC_NR ?
IOVEC_NR : iovp->iod_iovec_s) * sizeof(iovec_t),
iovp->iod_iovec);
}
/*===========================================================================*
* do_getstat *
*===========================================================================*/
static void do_getstat(mp)
message *mp;
{
int port;
ether_card_t *ec;
port = mp->DL_PORT;
if (port < 0 || port >= EC_PORT_NR_MAX)
panic( "lance", "illegal port", port);
ec= &ec_table[port];
ec->client= mp->DL_PROC;
put_userdata(mp->DL_PROC, (vir_bytes) mp->DL_ADDR,
(vir_bytes) sizeof(ec->eth_stat), &ec->eth_stat);
reply(ec, OK, FALSE);
}
/*===========================================================================*
* put_userdata *
*===========================================================================*/
static void put_userdata(user_proc, user_addr, count, loc_addr)
int user_proc;
vir_bytes user_addr;
vir_bytes count;
void *loc_addr;
{
/*phys_bytes dst;
dst = numap_local(user_proc, user_addr, count);
if (!dst)
panic( "lance", "umap failed", NO_NUM);
phys_copy(vir2phys(loc_addr), dst, (phys_bytes) count);
*/
int cps;
cps = sys_datacopy(SELF, (vir_bytes) loc_addr, user_proc, user_addr, count);
if (cps != OK) printf("lance: warning, scopy failed: %d\n", cps);
}
/*===========================================================================*
* do_stop *
*===========================================================================*/
static void do_stop(mp)
message *mp;
{
int port;
ether_card_t *ec;
unsigned short ioaddr;
port = mp->DL_PORT;
if (port < 0 || port >= EC_PORT_NR_MAX)
panic( "lance", "illegal port", port);
ec = &ec_table[port];
if (!(ec->flags & ECF_ENABLED))
return;
ioaddr = ec->ec_port;
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x4); /* stop */
out_word(ioaddr+LANCE_RESET, in_word(ioaddr+LANCE_RESET)); /* reset */
ec->flags = ECF_EMPTY;
}
static void getAddressing(devind, ec)
int devind;
ether_card_t *ec;
{
unsigned int membase, ioaddr;
int reg, irq;
for (reg = PCI_BASE_ADDRESS_0; reg <= PCI_BASE_ADDRESS_5; reg += 4)
{
ioaddr = pci_attr_r32(devind, reg);
if ((ioaddr & PCI_BASE_ADDRESS_IO_MASK) == 0
|| (ioaddr & PCI_BASE_ADDRESS_SPACE_IO) == 0)
continue;
/* Strip the I/O address out of the returned value */
ioaddr &= PCI_BASE_ADDRESS_IO_MASK;
/* Get the memory base address */
membase = pci_attr_r32(devind, PCI_BASE_ADDRESS_1);
/* KK: Get the IRQ number */
irq = pci_attr_r8(devind, PCI_INTERRUPT_PIN);
if (irq)
irq = pci_attr_r8(devind, PCI_INTERRUPT_LINE);
/* Get the ROM base address */
/*pci_attr_r32(devind, PCI_ROM_ADDRESS, &romaddr);
romaddr >>= 10;*/
/* Take the first one or the one that matches in boot ROM address */
/*if (pci_ioaddr == 0
|| romaddr == ((unsigned long) rom.rom_segment << 4)) {*/
ec->ec_linmem = membase;
ec->ec_port = ioaddr;
ec->ec_irq = irq;
/*}*/
}
}
/*===========================================================================*
* lance_probe *
*===========================================================================*/
static int lance_probe(ec)
ether_card_t *ec;
{
unsigned short pci_cmd, attached = 0;
unsigned short ioaddr;
int lance_version, chip_version;
int devind, just_one, i, r;
u16_t vid, did;
u32_t bar;
u8_t ilr;
char *dname;
if ((ec->ec_pcibus | ec->ec_pcidev | ec->ec_pcifunc) != 0)
{
/* Look for specific PCI device */
r= pci_find_dev(ec->ec_pcibus, ec->ec_pcidev,
ec->ec_pcifunc, &devind);
if (r == 0)
{
printf("%s: no PCI found at %d.%d.%d\n",
ec->port_name, ec->ec_pcibus,
ec->ec_pcidev, ec->ec_pcifunc);
return 0;
}
pci_ids(devind, &vid, &did);
just_one= TRUE;
}
else
{
r= pci_first_dev(&devind, &vid, &did);
if (r == 0)
return 0;
just_one= FALSE;
}
for(;;)
{
for (i= 0; pcitab[i].vid != 0; i++)
{
if (pcitab[i].vid != vid)
continue;
if (pcitab[i].did != did)
continue;
if (pcitab[i].checkclass)
{
panic("lance",
"class check not implemented", NO_NUM);
}
break;
}
if (pcitab[i].vid != 0)
break;
if (just_one)
{
printf(
"%s: wrong PCI device (%04x/%04x) found at %d.%d.%d\n",
ec->port_name, vid, did,
ec->ec_pcibus,
ec->ec_pcidev, ec->ec_pcifunc);
return 0;
}
r= pci_next_dev(&devind, &vid, &did);
if (!r)
return 0;
}
dname= pci_dev_name(vid, did);
if (!dname)
dname= "unknown device";
/*
printf("%s: ", ec->port_name);
printf("%s ", dname);
printf("(%x/", vid);
printf("%x) ", did);
printf("at %s\n", pci_slot_name(devind));
*/
pci_reserve(devind);
/* for (i = 0; pci_dev_list[i].vendor != 0; i++) {
if (pci_dev_list[i].suffix == 1)
{
ec->ec_port = pci_dev_list[i].ioaddr;
ec->ec_irq = pci_dev_list[i].irq;
ec->ec_linmem = pci_dev_list[i].membase;
ec->ec_bus = pci_dev_list[i].bus;
ec->ec_dev = pci_dev_list[i].devfn;
ec->ec_fnc =
pci_dev_list[i].suffix = -1;
attached = 1;
break;
}
}
if (attached == 0)
return 0;
*/
getAddressing(devind, ec);
/* ===== Bus Master ? ===== */
/*pcibios_read_config_word(ec->ec_bus, ec->ec_devfn, PCI_COMMAND, &pci_cmd);*/
pci_cmd = pci_attr_r32(devind, PCI_CR);
if (!(pci_cmd & PCI_COMMAND_MASTER)) {
pci_cmd |= PCI_COMMAND_MASTER;
/*pcibios_write_config_word(ec->ec_bus, ec->ec_devfn, PCI_COMMAND, pci_cmd);*/
pci_attr_w32(devind, PCI_CR, pci_cmd);
}
/* ===== Probe Details ===== */
ioaddr = ec->ec_port;
out_word(ioaddr+LANCE_RESET, in_word(ioaddr+LANCE_RESET)); /* Reset */
out_word(ioaddr+LANCE_ADDR, 0x0); /* Sw to win 0 */
if (in_word(ioaddr+LANCE_DATA) != 0x4)
{
ec->mode=EC_DISABLED;
}
/* Probe Chip Version */
out_word(ioaddr+LANCE_ADDR, 88); /* Get the version of the chip */
if (in_word(ioaddr+LANCE_ADDR) != 88)
lance_version = 0;
else
{
chip_version = in_word(ioaddr+LANCE_DATA);
out_word(ioaddr+LANCE_ADDR, 89);
chip_version |= in_word(ioaddr+LANCE_DATA) << 16;
if ((chip_version & 0xfff) != 0x3)
{
ec->mode=EC_DISABLED;
}
chip_version = (chip_version >> 12) & 0xffff;
for (lance_version = 1; chip_table[lance_version].id_number != 0;
++lance_version)
if (chip_table[lance_version].id_number == chip_version)
break;
}
#if 0
printf("%s: %s at %X:%d\n",
ec->port_name, chip_table[lance_version].name,
ec->ec_port, ec->ec_irq);
#endif
return lance_version;
}
Make lance driver notify inet on startup, and respond to getname
2005-10-21 20:20:44 +02:00
/*===========================================================================*
* do_getname *
*===========================================================================*/
static void do_getname(mp)
message *mp;
{
int r;
strncpy(mp->DL_NAME, progname, sizeof(mp->DL_NAME));
mp->DL_NAME[sizeof(mp->DL_NAME)-1]= '\0';
mp->m_type= DL_NAME_REPLY;
r= send(mp->m_source, mp);
if (r != OK)
panic("LANCE", "do_getname: send failed", r);
}
Imported AMD LANCE driver by various authors and contributors.
2005-09-04 22:08:22 +02:00
/*===========================================================================*
* lance_init_card *
*===========================================================================*/
static void lance_init_card(ec)
ether_card_t *ec;
{
int i;
Address l;
unsigned short ioaddr = ec->ec_port;
/* ============= setup init_block(cf. lance_probe1) ================ */
/* make sure data structure is 8-byte aligned */
l = ((Address)lance + 7) & ~7;
lp = (struct lance_interface *)l;
lp->init_block.mode = 0x3; /* disable Rx and Tx */
lp->init_block.filter[0] = lp->init_block.filter[1] = 0x0;
/* using multiple Rx/Tx buffer */
lp->init_block.rx_ring
= (virt_to_bus(&lp->rx_ring) & 0xffffff) | RX_RING_LEN_BITS;
lp->init_block.tx_ring
= (virt_to_bus(&lp->tx_ring) & 0xffffff) | TX_RING_LEN_BITS;
l = virt_to_bus(&lp->init_block);
out_word(ioaddr+LANCE_ADDR, 0x1);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, (unsigned short)l);
out_word(ioaddr+LANCE_ADDR, 0x2);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, (unsigned short)(l >> 16));
out_word(ioaddr+LANCE_ADDR, 0x4);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x915);
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
/* ============= Get MAC address (cf. lance_probe1) ================ */
for (i = 0; i < 6; ++i)
ec->mac_address.ea_addr[i]=in_byte(ioaddr+LANCE_ETH_ADDR+i);
/* ============ (re)start init_block(cf. lance_reset) =============== */
/* Reset the LANCE */
(void)in_word(ioaddr+LANCE_RESET);
/* ----- Re-initialize the LANCE ----- */
/* Set station address */
for (i = 0; i < 6; ++i)
lp->init_block.phys_addr[i] = ec->mac_address.ea_addr[i];
/* Preset the receive ring headers */
for (i=0; i<RX_RING_SIZE; i++) {
lp->rx_ring[i].buf_length = -ETH_FRAME_LEN;
/* OWN */
lp->rx_ring[i].u.base = virt_to_bus(lp->rbuf[i]) & 0xffffff;
/* we set the top byte as the very last thing */
lp->rx_ring[i].u.addr[3] = 0x80;
}
/* Preset the transmitting ring headers */
for (i=0; i<TX_RING_SIZE; i++) {
lp->tx_ring[i].u.base = 0;
isstored[i] = 0;
}
lp->init_block.mode = 0x0; /* enable Rx and Tx */
l = (Address)virt_to_bus(&lp->init_block);
out_word(ioaddr+LANCE_ADDR, 0x1);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, (short)l);
out_word(ioaddr+LANCE_ADDR, 0x2);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, (short)(l >> 16));
out_word(ioaddr+LANCE_ADDR, 0x4);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x915);
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
/* ----- start when init done. ----- */
out_word(ioaddr+LANCE_DATA, 0x4); /* stop */
out_word(ioaddr+LANCE_DATA, 0x1); /* init */
for (i = 10000; i > 0; --i)
if (in_word(ioaddr+LANCE_DATA) & 0x100)
break;
/* Set 'Multicast Table' */
for (i=0;i<4;++i)
{
out_word(ioaddr+LANCE_ADDR, 0x8 + i);
out_word(ioaddr+LANCE_DATA, 0xffff);
}
/* Set 'Receive Mode' */
if (ec->flags & ECF_PROMISC)
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x8000);
}
else
{
if (ec->flags & (ECF_BROAD | ECF_MULTI))
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x0000);
}
else
{
out_word(ioaddr+LANCE_ADDR, 0xf);
out_word(ioaddr+LANCE_DATA, 0x4000);
}
}
out_word(ioaddr+LANCE_ADDR, 0x0);
(void)in_word(ioaddr+LANCE_ADDR);
out_word(ioaddr+LANCE_DATA, 0x142); /* start && enable interrupt */
return;
}
Reference in a new issue Copy permalink