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minix/drivers/rtl8139/rtl8139.c
Jorrit Herder ec24a0798c Updated function key mapping because of possible changes to NOTIFY. 
The TTY driver now only notifies the IS server about function key event,
but does not tell which keys are pressed. The IS servers queries the TTY
driver to find out about this.
2005-06-20 14:23:31 +00:00

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/*
* rtl8139.c
*
* This file contains a ethernet device driver for Realtek rtl8139 based
* ethernet cards.
*
* The valid messages and their parameters are:
*
* m_type DL_PORT DL_PROC DL_COUNT DL_MODE DL_ADDR
* |------------+----------+---------+----------+---------+---------|
* | HARD_INT | | | | | |
* |------------|----------|---------|----------|---------|---------|
* | HARD_STOP | | | | | |
* |------------|----------|---------|----------|---------|---------|
* | 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: Aug 2003 by Philip Homburg <philip@cs.vu.nl>
* Changes:
* Aug 15, 2004 sync alarms replace watchdogs timers (Jorrit N. Herder)
* May 02, 2004 flag alarms replace micro_elapsed() (Jorrit N. Herder)
*
*/
#include "../drivers.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include <minix/com.h>
#include <minix/keymap.h>
#include <minix/syslib.h>
#include <minix/type.h>
#include <minix/utils.h>
#include <timers.h>
#include <ibm/portio.h>
#include <net/hton.h>
#include <net/gen/ether.h>
#include <net/gen/eth_io.h>
#include <sys/types.h>
#include <fcntl.h>
#include <assert.h>
#include <unistd.h>
#include <sys/ioc_memory.h>
#include "../../kernel/const.h"
#include "../../kernel/type.h"
#define tmra_ut timer_t
#define tmra_inittimer(tp) tmr_inittimer(tp)
#define Proc_number(p) proc_number(p)
#define debug 0
#define printW() ((void)0)
#define vm_1phys2bus(p) (p)
#if ENABLE_RTL8139
#if !ENABLE_PCI
#error PCI support not enabled
#endif
#include "../libpci/pci.h"
#include "rtl8139.h"
#define RX_BUFSIZE RL_RCR_RBLEN_64K_SIZE
#define RX_BUFBITS RL_RCR_RBLEN_64K
#define N_TX_BUF RL_N_TX
#define RE_PORT_NR 1 /* Minix */
/* I/O vectors are handled IOVEC_NR entries at a time. */
#define IOVEC_NR 16
/* Configuration */
#define RL_ENVVAR "RTLETH"
PRIVATE struct pcitab
{
u16_t vid;
u16_t did;
int checkclass;
} pcitab[]=
{
{ 0x10ec, 0x8139, 0 }, /* Realtek RTL8139 */
{ 0x1186, 0x1300, 0 }, /* D-Link RTL8139 */
{ 0x0000, 0x0000, 0 }
};
typedef struct re
{
port_t re_base_port;
int re_irq;
int re_mode;
int re_flags;
int re_client;
int re_link_up;
int re_got_int;
int re_send_int;
int re_report_link;
int re_clear_rx;
int re_need_reset;
int re_tx_alive;
char *re_model;
/* Rx */
phys_bytes re_rx_buf;
char *v_re_rx_buf;
vir_bytes re_read_s;
/* Tx */
int re_tx_head;
int re_tx_tail;
struct
{
int ret_busy;
phys_bytes ret_buf;
char * v_ret_buf;
} re_tx[N_TX_BUF];
u32_t re_ertxth; /* Early Tx Threshold */
/* PCI related */
int re_seen; /* TRUE iff device available */
u8_t re_pcibus;
u8_t re_pcidev;
u8_t re_pcifunc;
/* 'large' items */
int re_hook_id; /* IRQ hook id at kernel */
eth_stat_t re_stat;
ether_addr_t re_address;
message re_rx_mess;
message re_tx_mess;
char re_name[sizeof("rtl8139#n")];
iovec_t re_iovec[IOVEC_NR];
}
re_t;
#define REM_DISABLED 0x0
#define REM_ENABLED 0x1
#define REF_PACK_SENT 0x001
#define REF_PACK_RECV 0x002
#define REF_SEND_AVAIL 0x004
#define REF_READING 0x010
#define REF_EMPTY 0x000
#define REF_PROMISC 0x040
#define REF_MULTI 0x080
#define REF_BROAD 0x100
#define REF_ENABLED 0x200
static re_t re_table[RE_PORT_NR];
static int rl_tasknr;
static u16_t eth_ign_proto;
static tmra_ut rl_watchdog;
FORWARD _PROTOTYPE( unsigned my_inb, (U16_t port) );
FORWARD _PROTOTYPE( unsigned my_inw, (U16_t port) );
FORWARD _PROTOTYPE( unsigned my_inl, (U16_t port) );
static unsigned my_inb(U16_t port) {
U8_t value;
int s;
if ((s=sys_inb(port, &value)) !=OK)
printf("RTL8139: warning, sys_inb failed: %d\n", s);
return value;
}
static unsigned my_inw(U16_t port) {
U16_t value;
int s;
if ((s=sys_inw(port, &value)) !=OK)
printf("RTL8139: warning, sys_inw failed: %d\n", s);
return value;
}
static unsigned my_inl(U16_t port) {
U32_t value;
int s;
if ((s=sys_inl(port, &value)) !=OK)
printf("RTL8139: warning, sys_inl failed: %d\n", s);
return value;
}
#define rl_inb(port, offset) (my_inb((port) + (offset)))
#define rl_inw(port, offset) (my_inw((port) + (offset)))
#define rl_inl(port, offset) (my_inl((port) + (offset)))
FORWARD _PROTOTYPE( void my_outb, (U16_t port, U8_t value) );
FORWARD _PROTOTYPE( void my_outw, (U16_t port, U16_t value) );
FORWARD _PROTOTYPE( void my_outl, (U16_t port, U32_t value) );
static void my_outb(U16_t port, U8_t value) {
int s;
if ((s=sys_outb(port, value)) !=OK)
printf("RTL8139: warning, sys_outb failed: %d\n", s);
}
static void my_outw(U16_t port, U16_t value) {
int s;
if ((s=sys_outw(port, value)) !=OK)
printf("RTL8139: warning, sys_outw failed: %d\n", s);
}
static void my_outl(U16_t port, U32_t value) {
int s;
if ((s=sys_outl(port, value)) !=OK)
printf("RTL8139: warning, sys_outl failed: %d\n", s);
}
#define rl_outb(port, offset, value) (my_outb((port) + (offset), (value)))
#define rl_outw(port, offset, value) (my_outw((port) + (offset), (value)))
#define rl_outl(port, offset, value) (my_outl((port) + (offset), (value)))
_PROTOTYPE( static void rl_init, (message *mp) );
_PROTOTYPE( static void rl_pci_conf, (void) );
_PROTOTYPE( static int rl_probe, (re_t *rep) );
_PROTOTYPE( static void rl_conf_hw, (re_t *rep) );
_PROTOTYPE( static void rl_init_buf, (re_t *rep) );
_PROTOTYPE( static void rl_init_hw, (re_t *rep) );
_PROTOTYPE( static void rl_reset_hw, (re_t *rep) );
_PROTOTYPE( static void rl_confaddr, (re_t *rep) );
_PROTOTYPE( static void rl_rec_mode, (re_t *rep) );
_PROTOTYPE( static void rl_readv, (message *mp, int from_int,
int vectored) );
_PROTOTYPE( static void rl_writev, (message *mp, int from_int,
int vectored) );
_PROTOTYPE( static void rl_check_ints, (re_t *rep) );
_PROTOTYPE( static void rl_report_link, (re_t *rep) );
_PROTOTYPE( static void mii_print_techab, (U16_t techab) );
_PROTOTYPE( static void mii_print_stat_speed, (U16_t stat,
U16_t extstat) );
_PROTOTYPE( static void rl_clear_rx, (re_t *rep) );
_PROTOTYPE( static void rl_do_reset, (re_t *rep) );
_PROTOTYPE( static void rl_getstat, (message *mp) );
_PROTOTYPE( static void reply, (re_t *rep, int err, int may_block) );
_PROTOTYPE( static void mess_reply, (message *req, message *reply) );
_PROTOTYPE( static void put_userdata, (int user_proc,
vir_bytes user_addr, vir_bytes count, void *loc_addr) );
_PROTOTYPE( static void rtl8139_stop, (void) );
_PROTOTYPE( static void check_int_events, (void) );
_PROTOTYPE( static int do_hard_int, (void) );
_PROTOTYPE( static void rtl8139_dump, (message *m) );
#if 0
_PROTOTYPE( static void dump_phy, (re_t *rep) );
#endif
_PROTOTYPE( static int rl_handler, (re_t *rep) );
_PROTOTYPE( static void rl_watchdog_f, (timer_t *tp) );
/* The message used in the main loop is made global, so that rl_watchdog_f()
* can change its message type to fake a HARD_INT message.
*/
PRIVATE message m;
PRIVATE int int_event_check; /* set to TRUE if events arrived */
extern int errno;
/*===========================================================================*
* rtl8139_task *
*===========================================================================*/
void main(void)
{
int fkeys, sfkeys;
int i, r;
re_t *rep;
long v;
if (getprocnr(&rl_tasknr) != OK)
panic("RTL8139", "getprocnr failed", errno);
v= 0;
(void) env_parse("ETH_IGN_PROTO", "x", 0, &v, 0x0000L, 0xFFFFL);
eth_ign_proto= htons((u16_t) v);
/* Observe some function key for debug dumps. */
fkeys = sfkeys = 0; bit_set(sfkeys, 9);
if ((r=fkey_map(&fkeys, &sfkeys)) != OK)
printf("Warning: RTL8139 couldn't observe Shift+F9 key: %d\n",r);
/* Claim buffer memory now under Minix, before MM takes it all. */
for (rep= &re_table[0]; rep < re_table+RE_PORT_NR; rep++)
rl_init_buf(rep);
while (TRUE)
{
if ((r= receive(ANY, &m)) != OK)
panic("rtl8139","receive failed", r);
switch (m.m_type)
{
case DL_WRITEV: rl_writev(&m, FALSE, TRUE); break;
case DL_WRITE: rl_writev(&m, FALSE, FALSE); break;
#if 0
case DL_READ: do_vread(&m, FALSE); break;
#endif
case DL_READV: rl_readv(&m, FALSE, TRUE); break;
case DL_INIT: rl_init(&m); break;
case DL_GETSTAT: rl_getstat(&m); break;
#if 0
case DL_STOP: do_stop(&m); break;
#endif
case SYN_ALARM:
/* Under MINIX, synchronous alarms are used instead of
* watchdog functions. The approach is very different:
* MINIX VMD timeouts are handled within the kernel
* (the wathdog is executed by CLOCK), and notify()
* the driver in some cases.
* MINIX timeouts result in a SYN_ALARM message to the
* driver and thus are handled where they should be
* handled. Interrupt()s are faked by setting m_type to
* HARD_INT in rl_watchdog_f when needed, so that this
* case falls through.
*/
rl_watchdog_f(NULL);
break;
case HARD_INT:
do_hard_int();
if (int_event_check)
check_int_events();
break ;
case FKEY_PRESSED: rtl8139_dump(&m); break;
case HARD_STOP: rtl8139_stop(); break;
default:
panic("rtl8139","illegal message", m.m_type);
}
}
}
static void check_int_events(void)
{
int i;
re_t *rep;
for (i= 0, rep= &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
if (!rep->re_got_int)
continue;
rep->re_got_int= 0;
assert(rep->re_flags & REF_ENABLED);
rl_check_ints(rep);
}
}
/*===========================================================================*
* rtl8139_stop *
*===========================================================================*/
static void rtl8139_stop()
{
int i;
re_t *rep;
for (i= 0, rep= &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
rl_outb(rep->re_base_port, RL_CR, 0);
}
sys_exit(0);
}
/*===========================================================================*
* rtl8139_dump *
*===========================================================================*/
static void rtl8139_dump(m)
message *m; /* pointer to request message */
{
re_t *rep;
int i;
printf("\n");
for (i= 0, rep = &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode == REM_DISABLED)
printf("Realtek RTL 8139 port %d is disabled\n", i);
if (rep->re_mode != REM_ENABLED)
continue;
printf("Realtek RTL 8139 statistics of port %d:\n", i);
printf("recvErr :%8ld\t", rep->re_stat.ets_recvErr);
printf("sendErr :%8ld\t", rep->re_stat.ets_sendErr);
printf("OVW :%8ld\n", rep->re_stat.ets_OVW);
printf("CRCerr :%8ld\t", rep->re_stat.ets_CRCerr);
printf("frameAll :%8ld\t", rep->re_stat.ets_frameAll);
printf("missedP :%8ld\n", rep->re_stat.ets_missedP);
printf("packetR :%8ld\t", rep->re_stat.ets_packetR);
printf("packetT :%8ld\t", rep->re_stat.ets_packetT);
printf("transDef :%8ld\n", rep->re_stat.ets_transDef);
printf("collision :%8ld\t", rep->re_stat.ets_collision);
printf("transAb :%8ld\t", rep->re_stat.ets_transAb);
printf("carrSense :%8ld\n", rep->re_stat.ets_carrSense);
printf("fifoUnder :%8ld\t", rep->re_stat.ets_fifoUnder);
printf("fifoOver :%8ld\t", rep->re_stat.ets_fifoOver);
printf("CDheartbeat:%8ld\n", rep->re_stat.ets_CDheartbeat);
printf("OWC :%8ld\t", rep->re_stat.ets_OWC);
printf("re_flags = 0x%x\n", rep->re_flags);
printf(
"TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(rep->re_base_port, RL_TSAD),
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
printf("tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
}
}
/*===========================================================================*
* do_init *
*===========================================================================*/
static void rl_init(mp)
message *mp;
{
static int first_time= 1;
int port;
re_t *rep;
message reply_mess;
if (first_time)
{
first_time= 0;
rl_pci_conf(); /* Configure PCI devices. */
tmra_inittimer(&rl_watchdog);
/* Use a synchronous alarm instead of a watchdog timer. */
sys_syncalrm(SELF, HZ, 0);
}
port = mp->DL_PORT;
if (port < 0 || port >= RE_PORT_NR)
{
reply_mess.m_type= DL_INIT_REPLY;
reply_mess.m3_i1= ENXIO;
mess_reply(mp, &reply_mess);
return;
}
rep= &re_table[port];
if (rep->re_mode == REM_DISABLED)
{
/* This is the default, try to (re)locate the device. */
rl_conf_hw(rep);
if (rep->re_mode == REM_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 (rep->re_mode == REM_ENABLED)
rl_init_hw(rep);
rl_report_link(rep);
}
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
rep->re_flags &= ~(REF_PROMISC | REF_MULTI | REF_BROAD);
if (mp->DL_MODE & DL_PROMISC_REQ)
rep->re_flags |= REF_PROMISC;
if (mp->DL_MODE & DL_MULTI_REQ)
rep->re_flags |= REF_MULTI;
if (mp->DL_MODE & DL_BROAD_REQ)
rep->re_flags |= REF_BROAD;
rep->re_client = mp->m_source;
rl_rec_mode(rep);
reply_mess.m_type = DL_INIT_REPLY;
reply_mess.m3_i1 = mp->DL_PORT;
reply_mess.m3_i2 = RE_PORT_NR;
*(ether_addr_t *) reply_mess.m3_ca1 = rep->re_address;
mess_reply(mp, &reply_mess);
}
/*===========================================================================*
* rl_pci_conf *
*===========================================================================*/
static void rl_pci_conf()
{
int i, h;
re_t *rep;
static char envvar[] = RL_ENVVAR "#";
static char envfmt[] = "*:d.d.d";
static char val[128];
long v;
for (i= 0, rep= re_table; i<RE_PORT_NR; i++, rep++)
{
strcpy(rep->re_name, "rtl8139#0");
rep->re_name[8] += i;
rep->re_seen= FALSE;
envvar[sizeof(RL_ENVVAR)-1]= '0'+i;
if (0 == get_mon_param(envvar, val, sizeof(val)) &&
! env_prefix(envvar, "pci")) {
env_panic(envvar);
}
v= 0;
(void) env_parse(envvar, envfmt, 1, &v, 0, 255);
rep->re_pcibus= v;
v= 0;
(void) env_parse(envvar, envfmt, 2, &v, 0, 255);
rep->re_pcidev= v;
v= 0;
(void) env_parse(envvar, envfmt, 3, &v, 0, 255);
rep->re_pcifunc= v;
}
pci_init();
for (h= 1; h >= 0; h--) {
for (i= 0, rep= re_table; i<RE_PORT_NR; i++, rep++)
{
if (((rep->re_pcibus | rep->re_pcidev |
rep->re_pcifunc) != 0) != h)
{
continue;
}
if (rl_probe(rep))
rep->re_seen= TRUE;
}
}
}
/*===========================================================================*
* rl_probe *
*===========================================================================*/
static int rl_probe(rep)
re_t *rep;
{
int i, r, devind, just_one;
u16_t vid, did;
u32_t bar;
u8_t ilr;
char *dname;
if ((rep->re_pcibus | rep->re_pcidev | rep->re_pcifunc) != 0)
{
/* Look for specific PCI device */
r= pci_find_dev(rep->re_pcibus, rep->re_pcidev,
rep->re_pcifunc, &devind);
if (r == 0)
{
printf("%s: no PCI found at %d.%d.%d\n",
rep->re_name, rep->re_pcibus,
rep->re_pcidev, rep->re_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("rtl_probe",
"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",
rep->re_name, vid, did,
rep->re_pcibus,
rep->re_pcidev, rep->re_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: ", rep->re_name);
printf("%s (%x/%x) at %s\n", dname, vid, did, pci_slot_name(devind));
pci_reserve(devind);
/* printf("cr = 0x%x\n", pci_attr_r16(devind, PCI_CR)); */
bar= pci_attr_r32(devind, PCI_BAR) & 0xffffffe0;
if ((bar & 0x3ff) >= 0x100-32 || bar < 0x400)
panic("rtl_probe",
"base address is not properly configured", NO_NUM);
rep->re_base_port= bar;
ilr= pci_attr_r8(devind, PCI_ILR);
rep->re_irq= ilr;
if (debug)
{
printf("%s: using I/O address 0x%lx, IRQ %d\n",
rep->re_name, (unsigned long)bar, ilr);
}
return TRUE;
}
/*===========================================================================*
* rl_conf_hw *
*===========================================================================*/
static void rl_conf_hw(rep)
re_t *rep;
{
static eth_stat_t empty_stat = {0, 0, 0, 0, 0, 0 /* ,... */ };
rep->re_mode= REM_DISABLED; /* Superfluous */
if (rep->re_seen)
{
/* PCI device is present */
rep->re_mode= REM_ENABLED;
}
if (rep->re_mode != REM_ENABLED)
return;
rep->re_flags= REF_EMPTY;
rep->re_link_up= -1; /* Unknown */
rep->re_got_int= 0;
rep->re_send_int= 0;
rep->re_report_link= 0;
rep->re_clear_rx= 0;
rep->re_need_reset= 0;
rep->re_tx_alive= 0;
rep->re_read_s= 0;
rep->re_tx_head= 0;
rep->re_tx_tail= 0;
rep->re_ertxth= RL_TSD_ERTXTH_8;
rep->re_stat= empty_stat;
}
/*===========================================================================*
* rl_init_buf *
*===========================================================================*/
static void rl_init_buf(rep)
re_t *rep;
{
size_t rx_bufsize, tx_bufsize, tot_bufsize;
phys_bytes buf;
char *mallocbuf;
static struct memory chunk;
int fd, s, i, off;
/* Allocate receive and transmit buffers */
tx_bufsize= ETH_MAX_PACK_SIZE_TAGGED;
if (tx_bufsize % 4)
tx_bufsize += 4-(tx_bufsize % 4); /* Align */
rx_bufsize= RX_BUFSIZE;
tot_bufsize= N_TX_BUF*tx_bufsize + rx_bufsize;
/* Now try to allocate a kernel memory buffer. */
chunk.size = tot_bufsize;
#define BUF_ALIGNMENT (64*1024)
if(!(mallocbuf = malloc(BUF_ALIGNMENT + tot_bufsize))) {
panic("RTL8139","Couldn't allocate kernel buffer",i);
}
if(OK != (i = sys_umap(SELF, D, (vir_bytes) mallocbuf, tot_bufsize, &buf))) {
panic("RTL8139","Couldn't re-map malloced buffer",i);
}
/* click-align mallocced buffer. this is what we used to get
* from kmalloc() too.
*/
if((off = buf % BUF_ALIGNMENT)) {
mallocbuf += BUF_ALIGNMENT - off;
buf += BUF_ALIGNMENT - off;
}
for (i= 0; i<N_TX_BUF; i++)
{
rep->re_tx[i].ret_buf= buf;
rep->re_tx[i].v_ret_buf= mallocbuf;
buf += tx_bufsize;
mallocbuf += tx_bufsize;
}
rep->re_rx_buf= buf;
rep->v_re_rx_buf= mallocbuf;
}
/*===========================================================================*
* rl_init_hw *
*===========================================================================*/
static void rl_init_hw(rep)
re_t *rep;
{
int s, i;
rep->re_flags = REF_EMPTY;
rep->re_flags |= REF_ENABLED;
/* set the interrupt handler */
/* only send HARD_INT notifications */
if ((s=sys_irqsetpolicy(rep->re_irq, 0, &rep->re_hook_id)) != OK)
printf("RTL8139: error, couldn't set IRQ policy: %d\n", s);
rl_reset_hw(rep);
if ((s=sys_irqenable(&rep->re_hook_id)) != OK)
printf("RTL8139: error, couldn't enable interrupts: %d\n", s);
if (rep->re_mode) {
printf("%s: model %s\n", rep->re_name, rep->re_model);
} else
{
printf("%s: unknown model 0x%08x\n",
rep->re_name,
rl_inl(rep->re_base_port, RL_TCR) &
(RL_TCR_HWVER_AM | RL_TCR_HWVER_BM));
}
rl_confaddr(rep);
if (debug)
{
printf("%s: Ethernet address ", rep->re_name);
for (i= 0; i < 6; i++)
{
printf("%x%c", rep->re_address.ea_addr[i],
i < 5 ? ':' : '\n');
}
}
}
/*===========================================================================*
* rl_reset_hw *
*===========================================================================*/
static void rl_reset_hw(rep)
re_t *rep;
{
port_t port;
u32_t t;
phys_bytes bus_buf;
int i;
clock_t t0,t1;
port= rep->re_base_port;
#if 0
/* Reset the PHY */
rl_outb(port, RL_BMCR, MII_CTRL_RST);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_BMCR) & MII_CTRL_RST))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_BMCR) & MII_CTRL_RST)
panic("rtl8139","reset PHY failed to complete", NO_NUM);
#endif
/* Reset the device */
rl_outb(port, RL_CR, RL_CR_RST);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_RST))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_CR) & RL_CR_RST)
panic("rtl8139","reset failed to complete", NO_NUM);
t= rl_inl(port, RL_TCR);
switch(t & (RL_TCR_HWVER_AM | RL_TCR_HWVER_BM))
{
case RL_TCR_HWVER_RTL8139: rep->re_model= "RTL8139"; break;
case RL_TCR_HWVER_RTL8139A: rep->re_model= "RTL8139A"; break;
case RL_TCR_HWVER_RTL8139AG:
rep->re_model= "RTL8139A-G / RTL8139C";
break;
case RL_TCR_HWVER_RTL8139B:
rep->re_model= "RTL8139B / RTL8130";
break;
case RL_TCR_HWVER_RTL8100: rep->re_model= "RTL8100"; break;
case RL_TCR_HWVER_RTL8100B:
rep->re_model= "RTL8100B/RTL8139D";
break;
case RL_TCR_HWVER_RTL8139CP: rep->re_model= "RTL8139C+"; break;
case RL_TCR_HWVER_RTL8101: rep->re_model= "RTL8101"; break;
default:
rep->re_model= NULL;
break;
}
#if 0
printf("REVID: 0x%02x\n", rl_inb(port, RL_REVID));
#endif
/* Intialize Rx */
/* Should init multicast mask */
#if 0
08-0f R/W MAR[0-7] multicast
#endif
bus_buf= vm_1phys2bus(rep->re_rx_buf);
rl_outl(port, RL_RBSTART, bus_buf);
/* Initialize Tx */
for (i= 0; i<N_TX_BUF; i++)
{
rep->re_tx[i].ret_busy= FALSE;
bus_buf= vm_1phys2bus(rep->re_tx[i].ret_buf);
rl_outl(port, RL_TSAD0+i*4, bus_buf);
t= rl_inl(port, RL_TSD0+i*4);
assert(t & RL_TSD_OWN);
}
#if 0
dump_phy(rep);
#endif
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_SERR | RL_IMR_TIMEOUT |
RL_IMR_LENCHG));
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_FOVW | RL_IMR_PUN |
RL_IMR_RXOVW | RL_IMR_RER | RL_IMR_ROK));
t= rl_inw(port, RL_IMR);
rl_outw(port, RL_IMR, t | (RL_IMR_TER | RL_IMR_TOK));
t= rl_inb(port, RL_CR);
rl_outb(port, RL_CR, t | RL_CR_RE);
t= rl_inb(port, RL_CR);
rl_outb(port, RL_CR, t | RL_CR_TE);
rl_outl(port, RL_RCR, RX_BUFBITS);
t= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, t | RL_TCR_IFG_STD);
}
/*===========================================================================*
* rl_confaddr *
*===========================================================================*/
static void rl_confaddr(rep)
re_t *rep;
{
static char eakey[]= RL_ENVVAR "#_EA";
static char eafmt[]= "x:x:x:x:x:x";
int i;
port_t port;
u32_t w;
long v;
/* User defined ethernet address? */
eakey[sizeof(RL_ENVVAR)-1]= '0' + (rep-re_table);
port= rep->re_base_port;
for (i= 0; i < 6; i++)
{
if (env_parse(eakey, eafmt, i, &v, 0x00L, 0xFFL) != EP_SET)
break;
rep->re_address.ea_addr[i]= v;
}
if (i != 0 && i != 6) env_panic(eakey); /* It's all or nothing */
/* Should update ethernet address in hardware */
if (i == 6)
{
port= rep->re_base_port;
rl_outb(port, RL_9346CR, RL_9346CR_EEM_CONFIG);
w= 0;
for (i= 0; i<4; i++)
w |= (rep->re_address.ea_addr[i] << (i*8));
rl_outl(port, RL_IDR, w);
w= 0;
for (i= 4; i<6; i++)
w |= (rep->re_address.ea_addr[i] << ((i-4)*8));
rl_outl(port, RL_IDR+4, w);
rl_outb(port, RL_9346CR, RL_9346CR_EEM_NORMAL);
}
/* Get ethernet address */
for (i= 0; i<6; i++)
rep->re_address.ea_addr[i]= rl_inb(port, RL_IDR+i);
}
/*===========================================================================*
* rl_rec_mode *
*===========================================================================*/
static void rl_rec_mode(rep)
re_t *rep;
{
port_t port;
u32_t rcr;
port= rep->re_base_port;
rcr= rl_inl(port, RL_RCR);
rcr &= ~(RL_RCR_AB|RL_RCR_AM|RL_RCR_APM|RL_RCR_AAP);
if (rep->re_flags & REF_PROMISC)
rcr |= RL_RCR_AB | RL_RCR_AM | RL_RCR_AAP;
if (rep->re_flags & REF_BROAD)
rcr |= RL_RCR_AB;
if (rep->re_flags & REF_MULTI)
rcr |= RL_RCR_AM;
rcr |= RL_RCR_APM;
rl_outl(port, RL_RCR, rcr);
}
/*===========================================================================*
* rl_readv *
*===========================================================================*/
static void rl_readv(mp, from_int, vectored)
message *mp;
int from_int;
int vectored;
{
int i, j, n, o, s, s1, dl_port, re_client, count, size;
port_t port;
unsigned amount, totlen, packlen;
phys_bytes src_phys, dst_phys, iov_src;
u16_t d_start, d_end;
u32_t l, rxstat = 0x12345678;
re_t *rep;
iovec_t *iovp;
int cps;
dl_port = mp->DL_PORT;
count = mp->DL_COUNT;
if (dl_port < 0 || dl_port >= RE_PORT_NR)
panic("rtl8139"," illegal port", dl_port);
rep= &re_table[dl_port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
if (rep->re_clear_rx)
goto suspend; /* Buffer overflow */
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
port= rep->re_base_port;
/* Assume that the RL_CR_BUFE check was been done by rl_checks_ints
*/
if (!from_int && (rl_inb(port, RL_CR) & RL_CR_BUFE))
{
/* Receive buffer is empty, suspend */
goto suspend;
}
d_start= rl_inw(port, RL_CAPR) + RL_CAPR_DATA_OFF;
d_end= rl_inw(port, RL_CBR) % RX_BUFSIZE;
if (d_start >= RX_BUFSIZE)
{
printf("rl_readv: strange value in RL_CAPR: 0x%x\n",
rl_inw(port, RL_CAPR));
d_start %= RX_BUFSIZE;
}
if (d_end > d_start)
amount= d_end-d_start;
else
amount= d_end+RX_BUFSIZE - d_start;
rxstat = *(u32_t *) (rep->v_re_rx_buf + d_start);
#if DEAD_CODE
src_phys= rep->re_rx_buf + d_start;
cps = sys_physcopy(
NONE, PHYS_SEG, src_phys,
SELF, D, (vir_bytes) &rxstat, sizeof(rxstat));
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#endif
if (rep->re_clear_rx)
{
#if 0
printf("rl_readv: late buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
/* Should convert from little endian to host byte order */
if (!(rxstat & RL_RXS_ROK))
{
printf("rxstat = 0x%08lx\n", rxstat);
printf("d_start: 0x%x, d_end: 0x%x, rxstat: 0x%lx\n",
d_start, d_end, rxstat);
panic("rtl8139","received packet not OK", NO_NUM);
}
totlen= (rxstat >> RL_RXS_LEN_S);
if (totlen < 8 || totlen > 2*ETH_MAX_PACK_SIZE)
{
/* Someting went wrong */
printf(
"rl_readv: bad length (%u) in status 0x%08lx at offset 0x%x\n",
totlen, rxstat, d_start);
printf(
"d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%lx\n",
d_start, d_end, totlen, rxstat);
panic(NULL, NULL, NO_NUM);
}
#if 0
printf("d_start: 0x%x, d_end: 0x%x, totlen: %d, rxstat: 0x%x\n",
d_start, d_end, totlen, rxstat);
#endif
if (totlen+4 > amount)
{
printf("rl_readv: packet not yet ready\n");
goto suspend;
}
/* Should subtract the CRC */
packlen= totlen - ETH_CRC_SIZE;
if (vectored)
{
int iov_offset = 0;
#if 0
if ((cps = sys_umap(re_client, D, (vir_bytes) mp->DL_ADDR,
count * sizeof(rep->re_iovec[0]), &iov_src)) != OK)
printf("sys_umap failed: %d\n", cps);
#endif
size= 0;
o= d_start+4;
src_phys= rep->re_rx_buf;
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
#if 0
cps = sys_physcopy(NONE, PHYS_SEG, iov_src, SELF, D, (vir_bytes) rep->re_iovec,
n * sizeof(rep->re_iovec[0]));
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
cps = sys_vircopy(re_client, D, (vir_bytes) mp->DL_ADDR + iov_offset,
SELF, D, (vir_bytes) rep->re_iovec, n * sizeof(rep->re_iovec[0]));
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d (%d)\n", cps, __LINE__);
#endif
for (j= 0, iovp= rep->re_iovec; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > packlen)
{
assert(packlen > size);
s= packlen-size;
}
#if 0
if (sys_umap(re_client, D, iovp->iov_addr, s, &dst_phys) != OK)
panic("rtl8139","umap_local failed\n", NO_NUM);
#endif
if (o >= RX_BUFSIZE)
{
o -= RX_BUFSIZE;
assert(o < RX_BUFSIZE);
}
if (o+s > RX_BUFSIZE)
{
assert(o<RX_BUFSIZE);
s1= RX_BUFSIZE-o;
#if 0
cps = sys_abscopy(src_phys+o, dst_phys, s1);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
cps = sys_abscopy(src_phys, dst_phys+s1, s-s1);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
cps = sys_vircopy(SELF, D, (vir_bytes) rep->v_re_rx_buf+o,
re_client, D, iovp->iov_addr, s1);
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d (%d)\n", cps, __LINE__);
cps = sys_vircopy(SELF, D, (vir_bytes) rep->v_re_rx_buf,
re_client, D, iovp->iov_addr+s1, s-s1);
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d (%d)\n", cps, __LINE__);
#endif
}
else
{
#if 0
cps = sys_abscopy(src_phys+o, dst_phys, s);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
cps = sys_vircopy(SELF, D, (vir_bytes) rep->v_re_rx_buf+o,
re_client, D, iovp->iov_addr, s);
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d (%d)\n", cps, __LINE__);
#endif
}
size += s;
if (size == packlen)
break;
o += s;
}
if (size == packlen)
break;
}
if (size < packlen)
{
assert(0);
}
}
else
{
assert(0);
#if 0
size= mp->DL_COUNT;
if (size < ETH_MIN_PACK_SIZE || size > ETH_MAX_PACK_SIZE_TAGGED)
panic("rtl8139","invalid packet size", size);
if (OK != sys_umap(re_client, D, (vir_bytes)mp->DL_ADDR, size, &phys_user))
panic("rtl8139","umap_local failed", NO_NUM);
p= rep->re_tx[tx_head].ret_buf;
cps = sys_abscopy(phys_user, p, size);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#endif
}
if (rep->re_clear_rx)
{
/* For some reason the receiver FIFO is not stopped when
* the buffer is full.
*/
#if 0
printf("rl_readv: later buffer overflow\n");
#endif
goto suspend; /* Buffer overflow */
}
rep->re_stat.ets_packetR++;
rep->re_read_s= packlen;
rep->re_flags= (rep->re_flags & ~REF_READING) | REF_PACK_RECV;
/* Avoid overflow in 16-bit computations */
l= d_start;
l += totlen+4;
l= (l+3) & ~3; /* align */
if (l >= RX_BUFSIZE)
{
l -= RX_BUFSIZE;
assert(l < RX_BUFSIZE);
}
rl_outw(port, RL_CAPR, l-RL_CAPR_DATA_OFF);
if (!from_int)
reply(rep, OK, FALSE);
return;
suspend:
if (from_int)
{
assert(rep->re_flags & REF_READING);
/* No need to store any state */
return;
}
rep->re_rx_mess= *mp;
assert(!(rep->re_flags & REF_READING));
rep->re_flags |= REF_READING;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_writev *
*===========================================================================*/
static void rl_writev(mp, from_int, vectored)
message *mp;
int from_int;
int vectored;
{
phys_bytes p, iov_src, phys_user;
int i, j, n, s, port, count, size;
int tx_head, re_client;
re_t *rep;
iovec_t *iovp;
char *ret;
int cps;
port = mp->DL_PORT;
count = mp->DL_COUNT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
re_client= mp->DL_PROC;
rep->re_client= re_client;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
if (from_int)
{
assert(rep->re_flags & REF_SEND_AVAIL);
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
rep->re_tx_alive= TRUE;
}
tx_head= rep->re_tx_head;
if (rep->re_tx[tx_head].ret_busy)
{
assert(!(rep->re_flags & REF_SEND_AVAIL));
rep->re_flags |= REF_SEND_AVAIL;
if (rep->re_tx[tx_head].ret_busy)
goto suspend;
/* Race condition, the interrupt handler may clear re_busy
* before we got a chance to set REF_SEND_AVAIL. Checking
* ret_busy twice should be sufficient.
*/
#if 0
printf("rl_writev: race detected\n");
#endif
rep->re_flags &= ~REF_SEND_AVAIL;
rep->re_send_int= FALSE;
}
assert(!(rep->re_flags & REF_SEND_AVAIL));
assert(!(rep->re_flags & REF_PACK_SENT));
if (vectored)
{
int iov_offset = 0;
#if 0
if (OK != sys_umap(re_client, D, (vir_bytes)mp->DL_ADDR,
count * sizeof(rep->re_iovec[0]), &iov_src))
panic("rtl8139","umap_local failed", NO_NUM);
#endif
size= 0;
#if 0
p= rep->re_tx[tx_head].ret_buf;
#else
ret = rep->re_tx[tx_head].v_ret_buf;
#endif
for (i= 0; i<count; i += IOVEC_NR,
iov_src += IOVEC_NR * sizeof(rep->re_iovec[0]),
iov_offset += IOVEC_NR * sizeof(rep->re_iovec[0]))
{
n= IOVEC_NR;
if (i+n > count)
n= count-i;
#if 0
cps = sys_physcopy(NONE, PHYS_SEG, iov_src, SELF, D, (vir_bytes) rep->re_iovec,
n * sizeof(rep->re_iovec[0]));
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
cps = sys_vircopy(re_client, D, ((vir_bytes) mp->DL_ADDR) + iov_offset,
SELF, D, (vir_bytes) rep->re_iovec,
n * sizeof(rep->re_iovec[0]));
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d\n", cps);
#endif
for (j= 0, iovp= rep->re_iovec; j<n; j++, iovp++)
{
s= iovp->iov_size;
if (size + s > ETH_MAX_PACK_SIZE_TAGGED)
{
panic("rtl8139","invalid packet size",
NO_NUM);
}
if (OK != sys_umap(re_client, D, iovp->iov_addr, s, &phys_user))
panic("rtl8139","umap_local failed\n", NO_NUM);
#if 0
cps = sys_abscopy(phys_user, p, s);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
cps = sys_vircopy(re_client, D, iovp->iov_addr,
SELF, D, (vir_bytes) ret, s);
if (cps != OK) printf("RTL8139: warning, sys_vircopy failed: %d\n", cps);
#endif
size += s;
#if 0
p += s;
#endif
ret += s;
}
}
if (size < ETH_MIN_PACK_SIZE)
panic("rtl8139","invalid packet size", size);
}
else
{
size= mp->DL_COUNT;
if (size < ETH_MIN_PACK_SIZE || size > ETH_MAX_PACK_SIZE_TAGGED)
panic("rtl8139","invalid packet size", size);
#if 0
if (OK != sys_umap(re_client, D, (vir_bytes)mp->DL_ADDR, size, &phys_user))
panic("rtl8139","umap_local failed\n", NO_NUM);
p= rep->re_tx[tx_head].ret_buf;
cps = sys_abscopy(phys_user, p, size);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#else
ret = rep->re_tx[tx_head].v_ret_buf;
cps = sys_vircopy(re_client, D, (vir_bytes)mp->DL_ADDR,
SELF, D, (vir_bytes) ret, size);
if (cps != OK) printf("RTL8139: warning, sys_abscopy failed: %d\n", cps);
#endif
}
rl_outl(rep->re_base_port, RL_TSD0+tx_head*4,
rep->re_ertxth | size);
rep->re_tx[tx_head].ret_busy= TRUE;
if (++tx_head == N_TX_BUF)
tx_head= 0;
assert(tx_head < RL_N_TX);
rep->re_tx_head= tx_head;
rep->re_flags |= REF_PACK_SENT;
/* If the interrupt handler called, don't send a reply. The reply
* will be sent after all interrupts are handled.
*/
if (from_int)
return;
reply(rep, OK, FALSE);
return;
suspend:
#if 0
printf("rl_writev: head %d, tail %d, busy: %d %d %d %d\n",
tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
printf("rl_writev: TSD: 0x%x, 0x%x, 0x%x, 0x%x\n",
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
#endif
if (from_int)
panic("rtl8139","should not be sending\n", NO_NUM);
rep->re_tx_mess= *mp;
reply(rep, OK, FALSE);
}
/*===========================================================================*
* rl_check_ints *
*===========================================================================*/
static void rl_check_ints(rep)
re_t *rep;
{
#if 0
10-1f R/W TSD[0-3] Transmit Status of Descriptor [0-3]
31 R CRS Carrier Sense Lost
30 R TABT Transmit Abort
29 R OWC Out of Window Collision
27-24 R NCC[3-0] Number of Collision Count
23-22 reserved
21-16 R/W ERTXH[5-0] Early Tx Threshold
15 R TOK Transmit OK
14 R TUN Transmit FIFO Underrun
13 R/W OWN OWN
12-0 R/W SIZE Descriptor Size
3e-3f R/W ISR Interrupt Status Register
6 R/W FOVW Fx FIFO Overflow Interrupt
5 R/W PUN/LinkChg Packet Underrun / Link Change Interrupt
3 R/W TER Transmit Error Interrupt
2 R/W TOK Transmit OK Interrupt
3e-3f R/W ISR Interrupt Status Register
15 R/W SERR System Error Interrupt
14 R/W TimeOut Time Out Interrupt
13 R/W LenChg Cable Length Change Interrupt
3e-3f R/W ISR Interrupt Status Register
4 R/W RXOVW Rx Buffer Overflow Interrupt
1 R/W RER Receive Error Interrupt
0 R/W ROK Receive OK Interrupt
4c-4f R/W MPC Missed Packet Counter
60-61 R TSAD Transmit Status of All Descriptors
15-12 R TOK[3-0] TOK bit of Descriptor [3-0]
11-8 R TUN[3-0] TUN bit of Descriptor [3-0]
7-4 R TABT[3-0] TABT bit of Descriptor [3-0]
3-0 R OWN[3-0] OWN bit of Descriptor [3-0]
6c-6d R DIS Disconnect Counter
15-0 R DCNT Disconnect Counter
6e-6f R FCSC False Carrier Sense Counter
15-0 R FCSCNT False Carrier event counter
72-73 R REC RX_ER Counter
15-0 R RXERCNT Received packet counter
#endif
int re_flags;
re_flags= rep->re_flags;
if ((re_flags & REF_READING) &&
!(rl_inb(rep->re_base_port, RL_CR) & RL_CR_BUFE))
{
if (rep->re_rx_mess.m_type == DL_READV)
{
rl_readv(&rep->re_rx_mess, TRUE /* from int */,
TRUE /* vectored */);
}
else
{
assert(rep->re_rx_mess.m_type == DL_READ);
rl_readv(&rep->re_rx_mess, TRUE /* from int */,
FALSE /* !vectored */);
}
}
if (rep->re_clear_rx)
rl_clear_rx(rep);
if (rep->re_need_reset)
rl_do_reset(rep);
if (rep->re_send_int)
{
if (rep->re_tx_mess.m_type == DL_WRITEV)
{
rl_writev(&rep->re_tx_mess, TRUE /* from int */,
TRUE /* vectored */);
}
else
{
assert(rep->re_tx_mess.m_type == DL_WRITE);
rl_writev(&rep->re_tx_mess, TRUE /* from int */,
FALSE /* !vectored */);
}
}
if (rep->re_report_link)
rl_report_link(rep);
if (rep->re_flags & (REF_PACK_SENT | REF_PACK_RECV))
reply(rep, OK, TRUE);
}
/*===========================================================================*
* rl_report_link *
*===========================================================================*/
static void rl_report_link(rep)
re_t *rep;
{
port_t port;
u16_t mii_ctrl, mii_status, mii_ana, mii_anlpa, mii_ane, mii_extstat;
u8_t msr;
int f, link_up;
rep->re_report_link= FALSE;
port= rep->re_base_port;
msr= rl_inb(port, RL_MSR);
link_up= !(msr & RL_MSR_LINKB);
rep->re_link_up= link_up;
if (!link_up)
{
printf("%s: link down\n", rep->re_name);
return;
}
mii_ctrl= rl_inw(port, RL_BMCR);
mii_status= rl_inw(port, RL_BMSR);
mii_ana= rl_inw(port, RL_ANAR);
mii_anlpa= rl_inw(port, RL_ANLPAR);
mii_ane= rl_inw(port, RL_ANER);
mii_extstat= 0;
if (mii_ctrl & (MII_CTRL_LB|MII_CTRL_PD|MII_CTRL_ISO))
{
printf("%s: PHY: ", rep->re_name);
f= 1;
if (mii_ctrl & MII_CTRL_LB)
{
printf("loopback mode");
f= 0;
}
if (mii_ctrl & MII_CTRL_PD)
{
if (!f) printf(", ");
f= 0;
printf("powered down");
}
if (mii_ctrl & MII_CTRL_ISO)
{
if (!f) printf(", ");
f= 0;
printf("isolated");
}
printf("\n");
return;
}
if (!(mii_ctrl & MII_CTRL_ANE))
{
printf("%s: manual config: ", rep->re_name);
switch(mii_ctrl & (MII_CTRL_SP_LSB|MII_CTRL_SP_MSB))
{
case MII_CTRL_SP_10: printf("10 Mbps"); break;
case MII_CTRL_SP_100: printf("100 Mbps"); break;
case MII_CTRL_SP_1000: printf("1000 Mbps"); break;
case MII_CTRL_SP_RES: printf("reserved speed"); break;
}
if (mii_ctrl & MII_CTRL_DM)
printf(", full duplex");
else
printf(", half duplex");
printf("\n");
return;
}
if (!debug) goto resspeed;
printf("%s: ", rep->re_name);
mii_print_stat_speed(mii_status, mii_extstat);
printf("\n");
if (!(mii_status & MII_STATUS_ANC))
printf("%s: auto-negotiation not complete\n", rep->re_name);
if (mii_status & MII_STATUS_RF)
printf("%s: remote fault detected\n", rep->re_name);
if (!(mii_status & MII_STATUS_ANA))
{
printf("%s: local PHY has no auto-negotiation ability\n",
rep->re_name);
}
if (!(mii_status & MII_STATUS_LS))
printf("%s: link down\n", rep->re_name);
if (mii_status & MII_STATUS_JD)
printf("%s: jabber condition detected\n", rep->re_name);
if (!(mii_status & MII_STATUS_EC))
{
printf("%s: no extended register set\n", rep->re_name);
goto resspeed;
}
if (!(mii_status & MII_STATUS_ANC))
goto resspeed;
printf("%s: local cap.: ", rep->re_name);
mii_print_techab(mii_ana);
printf("\n");
if (mii_ane & MII_ANE_PDF)
printf("%s: parallel detection fault\n", rep->re_name);
if (!(mii_ane & MII_ANE_LPANA))
{
printf("%s: link-partner does not support auto-negotiation\n",
rep->re_name);
goto resspeed;
}
printf("%s: remote cap.: ", rep->re_name);
mii_print_techab(mii_anlpa);
printf("\n");
resspeed:
printf("%s: ", rep->re_name);
printf("link up at %d Mbps, ", (msr & RL_MSR_SPEED_10) ? 10 : 100);
printf("%s duplex\n", ((mii_ctrl & MII_CTRL_DM) ? "full" : "half"));
}
static void mii_print_techab(techab)
u16_t techab;
{
int fs, ft;
if ((techab & MII_ANA_SEL_M) != MII_ANA_SEL_802_3)
{
printf("strange selector 0x%x, value 0x%x",
techab & MII_ANA_SEL_M,
(techab & MII_ANA_TAF_M) >> MII_ANA_TAF_S);
return;
}
fs= 1;
if (techab & (MII_ANA_100T4 | MII_ANA_100TXFD | MII_ANA_100TXHD))
{
printf("100 Mbps: ");
fs= 0;
ft= 1;
if (techab & MII_ANA_100T4)
{
printf("T4");
ft= 0;
}
if (techab & (MII_ANA_100TXFD | MII_ANA_100TXHD))
{
if (!ft)
printf(", ");
ft= 0;
printf("TX-");
switch(techab & (MII_ANA_100TXFD|MII_ANA_100TXHD))
{
case MII_ANA_100TXFD: printf("FD"); break;
case MII_ANA_100TXHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
if (techab & (MII_ANA_10TFD | MII_ANA_10THD))
{
if (!fs)
printf(", ");
printf("10 Mbps: ");
fs= 0;
printf("T-");
switch(techab & (MII_ANA_10TFD|MII_ANA_10THD))
{
case MII_ANA_10TFD: printf("FD"); break;
case MII_ANA_10THD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (techab & MII_ANA_PAUSE_SYM)
{
if (!fs)
printf(", ");
fs= 0;
printf("pause(SYM)");
}
if (techab & MII_ANA_PAUSE_ASYM)
{
if (!fs)
printf(", ");
fs= 0;
printf("pause(ASYM)");
}
if (techab & MII_ANA_TAF_RES)
{
if (!fs)
printf(", ");
fs= 0;
printf("0x%x", (techab & MII_ANA_TAF_RES) >> MII_ANA_TAF_S);
}
}
static void mii_print_stat_speed(stat, extstat)
u16_t stat;
u16_t extstat;
{
int fs, ft;
fs= 1;
if (stat & MII_STATUS_EXT_STAT)
{
if (extstat & (MII_ESTAT_1000XFD | MII_ESTAT_1000XHD |
MII_ESTAT_1000TFD | MII_ESTAT_1000THD))
{
printf("1000 Mbps: ");
fs= 0;
ft= 1;
if (extstat & (MII_ESTAT_1000XFD | MII_ESTAT_1000XHD))
{
ft= 0;
printf("X-");
switch(extstat &
(MII_ESTAT_1000XFD|MII_ESTAT_1000XHD))
{
case MII_ESTAT_1000XFD: printf("FD"); break;
case MII_ESTAT_1000XHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (extstat & (MII_ESTAT_1000TFD | MII_ESTAT_1000THD))
{
if (!ft)
printf(", ");
ft= 0;
printf("T-");
switch(extstat &
(MII_ESTAT_1000TFD|MII_ESTAT_1000THD))
{
case MII_ESTAT_1000TFD: printf("FD"); break;
case MII_ESTAT_1000THD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
}
if (stat & (MII_STATUS_100T4 |
MII_STATUS_100XFD | MII_STATUS_100XHD |
MII_STATUS_100T2FD | MII_STATUS_100T2HD))
{
if (!fs)
printf(", ");
fs= 0;
printf("100 Mbps: ");
ft= 1;
if (stat & MII_STATUS_100T4)
{
printf("T4");
ft= 0;
}
if (stat & (MII_STATUS_100XFD | MII_STATUS_100XHD))
{
if (!ft)
printf(", ");
ft= 0;
printf("TX-");
switch(stat & (MII_STATUS_100XFD|MII_STATUS_100XHD))
{
case MII_STATUS_100XFD: printf("FD"); break;
case MII_STATUS_100XHD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
if (stat & (MII_STATUS_100T2FD | MII_STATUS_100T2HD))
{
if (!ft)
printf(", ");
ft= 0;
printf("T2-");
switch(stat & (MII_STATUS_100T2FD|MII_STATUS_100T2HD))
{
case MII_STATUS_100T2FD: printf("FD"); break;
case MII_STATUS_100T2HD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
if (stat & (MII_STATUS_10FD | MII_STATUS_10HD))
{
if (!fs)
printf(", ");
printf("10 Mbps: ");
fs= 0;
printf("T-");
switch(stat & (MII_STATUS_10FD|MII_STATUS_10HD))
{
case MII_STATUS_10FD: printf("FD"); break;
case MII_STATUS_10HD: printf("HD"); break;
default: printf("FD/HD"); break;
}
}
}
/*===========================================================================*
* rl_clear_rx *
*===========================================================================*/
static void rl_clear_rx(rep)
re_t *rep;
{
port_t port;
u8_t cr;
int i;
clock_t t0,t1;
rep->re_clear_rx= FALSE;
port= rep->re_base_port;
/* Reset the receiver */
cr= rl_inb(port, RL_CR);
cr &= ~RL_CR_RE;
rl_outb(port, RL_CR, cr);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_RE))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_CR) & RL_CR_RE)
panic("rtl8139","cannot disable receiver", NO_NUM);
#if 0
printf("RBSTART = 0x%08x\n", rl_inl(port, RL_RBSTART));
printf("CAPR = 0x%04x\n", rl_inw(port, RL_CAPR));
printf("CBR = 0x%04x\n", rl_inw(port, RL_CBR));
printf("RCR = 0x%08x\n", rl_inl(port, RL_RCR));
#endif
rl_outb(port, RL_CR, cr | RL_CR_RE);
rl_outl(port, RL_RCR, RX_BUFBITS);
rl_rec_mode(rep);
rep->re_stat.ets_missedP++;
}
/*===========================================================================*
* rl_do_reset *
*===========================================================================*/
static void rl_do_reset(rep)
re_t *rep;
{
rep->re_need_reset= FALSE;
rl_reset_hw(rep);
rl_rec_mode(rep);
rep->re_tx_head= 0;
if (rep->re_flags & REF_SEND_AVAIL)
{
rep->re_tx[rep->re_tx_head].ret_busy= FALSE;
rep->re_send_int= TRUE;
}
}
/*===========================================================================*
* rl_getstat *
*===========================================================================*/
static void rl_getstat(mp)
message *mp;
{
int port;
eth_stat_t stats;
re_t *rep;
port = mp->DL_PORT;
if (port < 0 || port >= RE_PORT_NR)
panic("rtl8139","illegal port", port);
rep= &re_table[port];
rep->re_client= mp->DL_PROC;
assert(rep->re_mode == REM_ENABLED);
assert(rep->re_flags & REF_ENABLED);
stats= rep->re_stat;
put_userdata(mp->DL_PROC, (vir_bytes) mp->DL_ADDR,
(vir_bytes) sizeof(stats), &stats);
reply(rep, OK, FALSE);
}
/*===========================================================================*
* reply *
*===========================================================================*/
static void reply(rep, err, may_block)
re_t *rep;
int err;
int may_block;
{
message reply;
int status;
int r;
clock_t now;
status = 0;
if (rep->re_flags & REF_PACK_SENT)
status |= DL_PACK_SEND;
if (rep->re_flags & REF_PACK_RECV)
status |= DL_PACK_RECV;
reply.m_type = DL_TASK_REPLY;
reply.DL_PORT = rep - re_table;
reply.DL_PROC = rep->re_client;
reply.DL_STAT = status | ((u32_t) err << 16);
reply.DL_COUNT = rep->re_read_s;
if (OK != (r = sys_getuptime(&now)))
panic("dp8390","sys_getuptime() failed:", r);
reply.DL_CLCK = now;
r= send(rep->re_client, &reply);
if (r == ELOCKED && may_block)
{
printW(); printf("send locked\n");
return;
}
if (r < 0)
panic("dp8390","send failed:", r);
rep->re_read_s = 0;
rep->re_flags &= ~(REF_PACK_SENT | REF_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("rtl8139","unable to mess_reply", NO_NUM);
}
/*===========================================================================*
* 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;
{
int cps;
cps = sys_datacopy(SELF, (vir_bytes) loc_addr, user_proc, user_addr, count);
if (cps != OK) printf("RTL8139: warning, scopy failed: %d\n", cps);
}
#if 0
static void dump_phy(rep)
re_t *rep;
{
port_t port;
u32_t t;
port= rep->re_base_port;
t= rl_inb(port, RL_MSR);
printf("MSR: 0x%02lx\n", t);
if (t & RL_MSR_SPEED_10)
printf("\t10 Mbps\n");
if (t & RL_MSR_LINKB)
printf("\tLink failed\n");
t= rl_inb(port, RL_CONFIG1);
printf("CONFIG1: 0x%02lx\n", t);
t= rl_inb(port, RL_CONFIG3);
printf("CONFIG3: 0x%02lx\n", t);
t= rl_inb(port, RL_CONFIG4);
printf("CONFIG4: 0x%02lx\n", t);
t= rl_inw(port, RL_BMCR);
printf("BMCR (MII_CTRL): 0x%04lx\n", t);
t= rl_inw(port, RL_BMSR);
printf("BMSR:");
if (t & MII_STATUS_100T4)
printf(" 100Base-T4");
if (t & MII_STATUS_100XFD)
printf(" 100Base-X-FD");
if (t & MII_STATUS_100XHD)
printf(" 100Base-X-HD");
if (t & MII_STATUS_10FD)
printf(" 10Mbps-FD");
if (t & MII_STATUS_10HD)
printf(" 10Mbps-HD");
if (t & MII_STATUS_100T2FD)
printf(" 100Base-T2-FD");
if (t & MII_STATUS_100T2HD)
printf(" 100Base-T2-HD");
if (t & MII_STATUS_EXT_STAT)
printf(" Ext-stat");
if (t & MII_STATUS_RES)
printf(" res-0x%lx", t & MII_STATUS_RES);
if (t & MII_STATUS_MFPS)
printf(" MFPS");
if (t & MII_STATUS_ANC)
printf(" ANC");
if (t & MII_STATUS_RF)
printf(" remote-fault");
if (t & MII_STATUS_ANA)
printf(" ANA");
if (t & MII_STATUS_LS)
printf(" Link");
if (t & MII_STATUS_JD)
printf(" Jabber");
if (t & MII_STATUS_EC)
printf(" Extended-capability");
printf("\n");
t= rl_inw(port, RL_ANAR);
printf("ANAR (MII_ANA): 0x%04lx\n", t);
t= rl_inw(port, RL_ANLPAR);
printf("ANLPAR: 0x%04lx\n", t);
t= rl_inw(port, RL_ANER);
printf("ANER (MII_ANE): ");
if (t & MII_ANE_RES)
printf(" res-0x%lx", t & MII_ANE_RES);
if (t & MII_ANE_PDF)
printf(" Par-Detect-Fault");
if (t & MII_ANE_LPNPA)
printf(" LP-Next-Page-Able");
if (t & MII_ANE_NPA)
printf(" Loc-Next-Page-Able");
if (t & MII_ANE_PR)
printf(" Page-Received");
if (t & MII_ANE_LPANA)
printf(" LP-Auto-Neg-Able");
printf("\n");
t= rl_inw(port, RL_NWAYTR);
printf("NWAYTR: 0x%04lx\n", t);
t= rl_inw(port, RL_CSCR);
printf("CSCR: 0x%04lx\n", t);
t= rl_inb(port, RL_CONFIG5);
printf("CONFIG5: 0x%02lx\n", t);
}
#endif
static int do_hard_int(void)
{
int i,s;
for (i=0; i < RE_PORT_NR; i ++) {
/* Run interrupt handler at driver level. */
rl_handler( &re_table[i]);
/* Reenable interrupts for this hook. */
if ((s=sys_irqenable(&re_table[i].re_hook_id)) != OK)
printf("RTL8139: error, couldn't enable interrupts: %d\n", s);
}
}
/*===========================================================================*
* rl_handler *
*===========================================================================*/
static int rl_handler(rep)
re_t *rep;
{
int i, port, tx_head, tx_tail, link_up;
u16_t isr, tsad;
u32_t tsd, tcr, ertxth;
#if 0
u8_t cr;
#endif
clock_t t0,t1;
int_event_check = FALSE; /* disable check by default */
port= rep->re_base_port;
/* Ack interrupt */
isr= rl_inw(port, RL_ISR);
rl_outw(port, RL_ISR, isr);
if (isr & RL_IMR_FOVW)
{
isr &= ~RL_IMR_FOVW;
/* Should do anything? */
rep->re_stat.ets_fifoOver++;
}
if (isr & RL_IMR_PUN)
{
isr &= ~RL_IMR_PUN;
/* Either the link status changed or there was a TX fifo
* underrun.
*/
link_up= !(rl_inb(port, RL_MSR) & RL_MSR_LINKB);
if (link_up != rep->re_link_up)
{
rep->re_report_link= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
if (isr & RL_IMR_RXOVW)
{
isr &= ~RL_IMR_RXOVW;
/* Clear the receive buffer */
rep->re_clear_rx= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
if (isr & (RL_ISR_RER | RL_ISR_ROK))
{
isr &= ~(RL_ISR_RER | RL_ISR_ROK);
if (!rep->re_got_int && (rep->re_flags & REF_READING))
{
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
#if 0
if ((isr & (RL_ISR_TER | RL_ISR_TOK)) &&
(rep->re_flags & REF_SEND_AVAIL) &&
(rep->re_tx[0].ret_busy || rep->re_tx[1].ret_busy ||
rep->re_tx[2].ret_busy || rep->re_tx[3].ret_busy))
{
printf(
"rl_handler, SEND_AVAIL: tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
printf(
"rl_handler: TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(port, RL_TSAD),
rl_inl(port, RL_TSD0+0*4),
rl_inl(port, RL_TSD0+1*4),
rl_inl(port, RL_TSD0+2*4),
rl_inl(port, RL_TSD0+3*4));
}
#endif
if ((isr & (RL_ISR_TER | RL_ISR_TOK)) || 1)
{
isr &= ~(RL_ISR_TER | RL_ISR_TOK);
tsad= rl_inw(port, RL_TSAD);
if (tsad & (RL_TSAD_TABT0|RL_TSAD_TABT1|
RL_TSAD_TABT2|RL_TSAD_TABT3))
{
#if 0
/* Do we need a watch dog? */
/* Just reset the whole chip */
rep->re_need_reset= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
#elif 0
/* Reset transmitter */
rep->re_stat.ets_transAb++;
cr= rl_inb(port, RL_CR);
cr &= ~RL_CR_TE;
rl_outb(port, RL_CR, cr);
getuptime(&t0);
do {
if (!(rl_inb(port, RL_CR) & RL_CR_TE))
break;
} while (getuptime(&t1)==OK && (t1-t0) < HZ);
if (rl_inb(port, RL_CR) & RL_CR_TE)
{
panic("rtl8139","cannot disable transmitter",
NO_NUM);
}
rl_outb(port, RL_CR, cr | RL_CR_TE);
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_IFG_STD);
printf("rl_handler: reset after abort\n");
if (rep->re_flags & REF_SEND_AVAIL)
{
printf("rl_handler: REF_SEND_AVAIL\n");
rep->re_send_int= TRUE;
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
for (i= 0; i< N_TX_BUF; i++)
rep->re_tx[i].ret_busy= FALSE;
rep->re_tx_head= 0;
#else
printf("rl_handler, TABT, tasd = 0x%04x\n",
tsad);
/* Find the aborted transmit request */
for (i= 0; i< N_TX_BUF; i++)
{
tsd= rl_inl(port, RL_TSD0+i*4);
if (tsd & RL_TSD_TABT)
break;
}
if (i >= N_TX_BUF)
{
printf(
"rl_handler: can't find aborted TX req.\n");
}
else
{
printf("TSD%d = 0x%04lx\n", i, tsd);
/* Set head and tail to this buffer */
rep->re_tx_head= rep->re_tx_tail= i;
}
/* Aborted transmission, just kick the device
* and be done with it.
*/
rep->re_stat.ets_transAb++;
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_CLRABT);
#endif
}
/* Transmit completed */
tx_head= rep->re_tx_head;
tx_tail= rep->re_tx_tail;
for (i= 0; i< 2*N_TX_BUF; i++)
{
if (!rep->re_tx[tx_tail].ret_busy)
{
/* Strange, this buffer is not in-use.
* Increment tx_tail until tx_head is
* reached (or until we find a buffer that
* is in-use.
*/
if (tx_tail == tx_head)
break;
if (++tx_tail >= N_TX_BUF)
tx_tail= 0;
assert(tx_tail < RL_N_TX);
rep->re_tx_tail= tx_tail;
continue;
}
tsd= rl_inl(port, RL_TSD0+tx_tail*4);
if (!(tsd & RL_TSD_OWN))
{
/* Buffer is not yet ready */
break;
}
/* Should collect statistics */
if (tsd & RL_TSD_CRS)
rep->re_stat.ets_carrSense++;
if (tsd & RL_TSD_TABT)
{
printf("rl_handler, TABT, TSD%d = 0x%04lx\n",
tx_tail, tsd);
assert(0); /* CLRABT is not all that
* effective, why not?
*/
rep->re_stat.ets_transAb++;
tcr= rl_inl(port, RL_TCR);
rl_outl(port, RL_TCR, tcr | RL_TCR_CLRABT);
}
if (tsd & RL_TSD_OWC)
rep->re_stat.ets_OWC++;
if (tsd & RL_TSD_CDH)
rep->re_stat.ets_CDheartbeat++;
/* What about collisions? */
if (tsd & RL_TSD_TOK)
rep->re_stat.ets_packetT++;
else
rep->re_stat.ets_sendErr++;
if (tsd & RL_TSD_TUN)
{
rep->re_stat.ets_fifoUnder++;
/* Increase ERTXTH */
ertxth= tsd + (1 << RL_TSD_ERTXTH_S);
ertxth &= RL_TSD_ERTXTH_M;
if (debug && ertxth > rep->re_ertxth)
{
printf("%s: new ertxth: %ld bytes\n",
rep->re_name,
(ertxth >> RL_TSD_ERTXTH_S) *
32);
rep->re_ertxth= ertxth;
}
}
rep->re_tx[tx_tail].ret_busy= FALSE;
#if 0
if (rep->re_flags & REF_SEND_AVAIL)
{
printf("TSD%d: %08lx\n", tx_tail, tsd);
printf(
"rl_handler: head %d, tail %d, busy: %d %d %d %d\n",
tx_head, tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
}
#endif
if (++tx_tail >= N_TX_BUF)
tx_tail= 0;
assert(tx_tail < RL_N_TX);
rep->re_tx_tail= tx_tail;
if (rep->re_flags & REF_SEND_AVAIL)
{
#if 0
printf("rl_handler: REF_SEND_AVAIL\n");
#endif
rep->re_send_int= TRUE;
if (!rep->re_got_int)
{
rep->re_got_int= TRUE;
int_event_check = TRUE;
}
}
}
assert(i < 2*N_TX_BUF);
}
if (isr)
{
printf("rl_handler: unhandled interrupt: isr = 0x%04x\n",
isr);
}
return 1;
}
/*===========================================================================*
* rl_watchdog_f *
*===========================================================================*/
static void rl_watchdog_f(tp)
timer_t *tp;
{
int i;
re_t *rep;
/* Use a synchronous alarm instead of a watchdog timer. */
sys_syncalrm(SELF, HZ, 0);
for (i= 0, rep = &re_table[0]; i<RE_PORT_NR; i++, rep++)
{
if (rep->re_mode != REM_ENABLED)
continue;
if (!(rep->re_flags & REF_SEND_AVAIL))
{
/* Assume that an idle system is alive */
rep->re_tx_alive= TRUE;
continue;
}
if (rep->re_tx_alive)
{
rep->re_tx_alive= FALSE;
continue;
}
printf("rl_watchdog_f: resetting port %d\n", i);
printf(
"TSAD: 0x%04x, TSD: 0x%08x, 0x%08x, 0x%08x, 0x%08x\n",
rl_inw(rep->re_base_port, RL_TSAD),
rl_inl(rep->re_base_port, RL_TSD0+0*4),
rl_inl(rep->re_base_port, RL_TSD0+1*4),
rl_inl(rep->re_base_port, RL_TSD0+2*4),
rl_inl(rep->re_base_port, RL_TSD0+3*4));
printf("tx_head %d, tx_tail %d, busy: %d %d %d %d\n",
rep->re_tx_head, rep->re_tx_tail,
rep->re_tx[0].ret_busy, rep->re_tx[1].ret_busy,
rep->re_tx[2].ret_busy, rep->re_tx[3].ret_busy);
rep->re_need_reset= TRUE;
rep->re_got_int= TRUE;
check_int_events();
}
}
#if 0
_PROTOTYPE( static void rtl_init, (struct dpeth *dep) );
_PROTOTYPE( static u16_t get_ee_word, (dpeth_t *dep, int a) );
_PROTOTYPE( static void ee_wen, (dpeth_t *dep) );
_PROTOTYPE( static void set_ee_word, (dpeth_t *dep, int a, U16_t w) );
_PROTOTYPE( static void ee_wds, (dpeth_t *dep) );
static void rtl_init(dep)
dpeth_t *dep;
{
u8_t reg_a, reg_b, cr, config0, config2, config3;
int i;
char val[128];
printf("rtl_init called\n");
ne_init(dep);
/* ID */
outb_reg0(dep, DP_CR, CR_PS_P0);
reg_a = inb_reg0(dep, DP_DUM1);
reg_b = inb_reg0(dep, DP_DUM2);
printf("rtl_init: '%c', '%c'\n", reg_a, reg_b);
outb_reg0(dep, DP_CR, CR_PS_P3);
config0 = inb_reg3(dep, 3);
config2 = inb_reg3(dep, 5);
config3 = inb_reg3(dep, 6);
outb_reg0(dep, DP_CR, CR_PS_P0);
printf("rtl_init: config 0/2/3 = %x/%x/%x\n",
config0, config2, config3);
if (0 == sys_getkenv("RTL8029FD",9+1, val, sizeof(val)))
{
printf("rtl_init: setting full-duplex mode\n");
outb_reg0(dep, DP_CR, CR_PS_P3);
cr= inb_reg3(dep, 1);
outb_reg3(dep, 1, cr | 0xc0);
outb_reg3(dep, 6, config3 | 0x40);
config3 = inb_reg3(dep, 6);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 5, config2 | 0x20);
config2= inb_reg3(dep, 5);
outb_reg3(dep, 1, cr);
outb_reg0(dep, DP_CR, CR_PS_P0);
printf("rtl_init: config 2 = %x\n", config2);
printf("rtl_init: config 3 = %x\n", config3);
}
for (i= 0; i<64; i++)
printf("%x ", get_ee_word(dep, i));
printf("\n");
if (0 == sys_getkenv("RTL8029MN",9+1, val, sizeof(val)))
{
ee_wen(dep);
set_ee_word(dep, 0x78/2, 0x10ec);
set_ee_word(dep, 0x7A/2, 0x8029);
set_ee_word(dep, 0x7C/2, 0x10ec);
set_ee_word(dep, 0x7E/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x78/2) == 0x10ec);
assert(get_ee_word(dep, 0x7A/2) == 0x8029);
assert(get_ee_word(dep, 0x7C/2) == 0x10ec);
assert(get_ee_word(dep, 0x7E/2) == 0x8029);
}
if (0 == sys_getkenv("RTL8029XXX",10+1, val, sizeof(val)))
{
ee_wen(dep);
set_ee_word(dep, 0x76/2, 0x8029);
ee_wds(dep);
assert(get_ee_word(dep, 0x76/2) == 0x8029);
}
}
static u16_t get_ee_word(dep, a)
dpeth_t *dep;
int a;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x180 | (a & 0x3f); /* 1 1 0 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
w= 0;
for (i= 0; i<16; i++)
{
w <<= 1;
/* Data is shifted out on the rising edge. Read at the
* falling edge.
*/
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4);
outb_reg3(dep, 1, 0x80 | 0x8 | b);
b= inb_reg3(dep, 1);
w |= (b & 1);
}
outb_reg3(dep, 1, 0x80); /* drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
return w;
}
static void ee_wen(dep)
dpeth_t *dep;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x130; /* 1 0 0 1 1 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
/* micro_delay(1); */ /* Is this required? */
}
static void set_ee_word(dep, a, w)
dpeth_t *dep;
int a;
u16_t w;
{
int b, i, cmd;
clock_t t0, t1;
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
cmd= 0x140 | (a & 0x3f); /* 1 0 1 a5 a4 a3 a2 a1 a0 */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
for (i= 15; i >= 0; i--)
{
b= (w & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of data */
outb_reg3(dep, 1, 0x80); /* Drop CS */
/* micro_delay(1); */ /* Is this required? */
outb_reg3(dep, 1, 0x80 | 0x8); /* Set CS */
getuptime(&t0);
do {
if (inb_reg3(dep, 1) & 1)
break;
} while (getuptime(&t1) == OK && (t1 == t0));
if (!(inb_reg3(dep, 1) & 1))
panic("set_ee_word","device remains busy", NO_NUM);
}
static void ee_wds(dep)
dpeth_t *dep;
{
int b, i, cmd;
u16_t w;
outb_reg0(dep, DP_CR, CR_PS_P3); /* Bank 3 */
/* Switch to 9346 mode and enable CS */
outb_reg3(dep, 1, 0x80 | 0x8);
cmd= 0x100; /* 1 0 0 0 0 x x x x */
for (i= 8; i >= 0; i--)
{
b= (cmd & (1 << i));
b= (b ? 2 : 0);
/* Cmd goes out on the rising edge of the clock */
outb_reg3(dep, 1, 0x80 | 0x8 | b);
outb_reg3(dep, 1, 0x80 | 0x8 | 0x4 | b);
}
outb_reg3(dep, 1, 0x80 | 0x8); /* End of cmd */
outb_reg3(dep, 1, 0x80); /* Drop CS */
outb_reg3(dep, 1, 0x00); /* back to normal */
outb_reg0(dep, DP_CR, CR_PS_P0); /* back to bank 0 */
}
#endif
#endif /* ENABLE_RTL8139 */
/*
* $PchId: rtl8139.c,v 1.3 2003/09/11 14:15:15 philip Exp $
*/
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