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-rw-r--r--drivers/net/depca.c267
1 files changed, 138 insertions, 129 deletions
diff --git a/drivers/net/depca.c b/drivers/net/depca.c
index c3fdccaf6..354eab0c3 100644
--- a/drivers/net/depca.c
+++ b/drivers/net/depca.c
@@ -17,6 +17,7 @@
DEPCA (the original)
DE100
+ DE101
DE200 Turbo
DE201 Turbo
DE202 Turbo (TP BNC)
@@ -137,6 +138,11 @@
To unload a module, turn off the associated interface
'ifconfig eth?? down' then 'rmmod depca'.
+ [Alan Cox: Changed to split off the module values as ints for insmod
+
+ you can now do insmod depca.c irq=7 io=0x200 ]
+
+
TO DO:
------
@@ -147,29 +153,41 @@
Version Date Description
- 0.1 25-jan-94 Initial writing.
- 0.2 27-jan-94 Added LANCE TX hardware buffer chaining.
- 0.3 1-feb-94 Added multiple DEPCA support.
- 0.31 4-feb-94 Added DE202 recognition.
- 0.32 19-feb-94 Tidy up. Improve multi-DEPCA support.
- 0.33 25-feb-94 Fix DEPCA ethernet ROM counter enable.
+ 0.1 25-jan-94 Initial writing.
+ 0.2 27-jan-94 Added LANCE TX hardware buffer chaining.
+ 0.3 1-feb-94 Added multiple DEPCA support.
+ 0.31 4-feb-94 Added DE202 recognition.
+ 0.32 19-feb-94 Tidy up. Improve multi-DEPCA support.
+ 0.33 25-feb-94 Fix DEPCA ethernet ROM counter enable.
Add jabber packet fix from murf@perftech.com
and becker@super.org
- 0.34 7-mar-94 Fix DEPCA max network memory RAM & NICSR access.
- 0.35 8-mar-94 Added DE201 recognition. Tidied up.
- 0.351 30-apr-94 Added EISA support. Added DE422 recognition.
- 0.36 16-may-94 DE422 fix released.
- 0.37 22-jul-94 Added MODULE support
- 0.38 15-aug-94 Added DBR ROM switch in depca_close().
+ 0.34 7-mar-94 Fix DEPCA max network memory RAM & NICSR access.
+ 0.35 8-mar-94 Added DE201 recognition. Tidied up.
+ 0.351 30-apr-94 Added EISA support. Added DE422 recognition.
+ 0.36 16-may-94 DE422 fix released.
+ 0.37 22-jul-94 Added MODULE support
+ 0.38 15-aug-94 Added DBR ROM switch in depca_close().
Multi DEPCA bug fix.
+ 0.38axp 15-sep-94 Special version for Alpha AXP Linux V1.0.
+ 0.381 12-dec-94 Added DE101 recognition, fix multicast bug.
+ 0.382 9-feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
+ 0.383 22-feb-95 Fix for conflict with VESA SCSI reported by
+ <stromain@alf.dec.com>
=========================================================================
*/
-static char *version = "depca.c:v0.38 8/15/94 davies@wanton.lkg.dec.com\n";
+static char *version = "depca.c:v0.383 2/22/94 davies@wanton.lkg.dec.com\n";
-#include <stdarg.h>
#include <linux/config.h>
+#ifdef MODULE
+#include <linux/module.h>
+#include <linux/version.h>
+#else
+#define MOD_INC_USE_COUNT
+#define MOD_DEC_USE_COUNT
+#endif /* MODULE */
+
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
@@ -186,11 +204,6 @@ static char *version = "depca.c:v0.38 8/15/94 davies@wanton.lkg.dec.com\n";
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
-#ifdef MODULE
-#include <linux/module.h>
-#include "/linux/tools/version.h"
-#endif /* MODULE */
-
#include "depca.h"
#ifdef DEPCA_DEBUG
@@ -203,13 +216,13 @@ static int depca_debug = 1;
#define PROBE_LENGTH 32
#endif
-#ifndef PROBE_SEQUENCE
-#define PROBE_SEQUENCE "FF0055AAFF0055AA"
-#endif
+#define ETH_PROM_SIG 0xAA5500FFUL
#ifndef DEPCA_SIGNATURE
-#define DEPCA_SIGNATURE {"DEPCA","DE100",\
- "DE200","DE201","DE202","DE210",\
+#define DEPCA_SIGNATURE {"DEPCA",\
+ "DE100","DE101",\
+ "DE200","DE201","DE202",\
+ "DE210",\
"DE422",\
""}
#define DEPCA_NAME_LENGTH 8
@@ -265,13 +278,13 @@ static short mem_chkd = 0; /* holds which base addrs have been */
** The DEPCA Rx and Tx ring descriptors.
*/
struct depca_rx_head {
- long base;
+ volatile long base;
short buf_length; /* This length is negative 2's complement! */
short msg_length; /* This length is "normal". */
};
struct depca_tx_head {
- long base;
+ volatile long base;
short length; /* This length is negative 2's complement! */
short misc; /* Errors and TDR info */
};
@@ -312,7 +325,7 @@ struct depca_private {
*/
static int depca_open(struct device *dev);
static int depca_start_xmit(struct sk_buff *skb, struct device *dev);
-static void depca_interrupt(int reg_ptr);
+static void depca_interrupt(int irq, struct pt_regs * regs);
static int depca_close(struct device *dev);
static struct enet_statistics *depca_get_stats(struct device *dev);
#ifdef HAVE_MULTICAST
@@ -322,15 +335,16 @@ static void set_multicast_list(struct device *dev, int num_addrs, void *addrs);
/*
** Private functions
*/
-static int depca_probe1(struct device *dev, short ioaddr);
+static int depca_probe1(struct device *dev, short ioaddr);
static void depca_init_ring(struct device *dev);
-static int depca_rx(struct device *dev);
-static int depca_tx(struct device *dev);
+static int depca_rx(struct device *dev);
+static int depca_tx(struct device *dev);
static void LoadCSRs(struct device *dev);
-static int InitRestartDepca(struct device *dev);
+static int InitRestartDepca(struct device *dev);
static char *DepcaSignature(unsigned long mem_addr);
-static int DevicePresent(short ioaddr);
+static int DevicePresent(short ioaddr);
+static int EISA_signature(short iobase);
#ifdef HAVE_MULTICAST
static void SetMulticastFilter(int num_addrs, char *addrs, char *multicast_table);
#endif
@@ -470,9 +484,7 @@ depca_probe1(struct device *dev, short ioaddr)
j=inb(DEPCA_PROM);
}
-#ifdef HAVE_PORTRESERVE
- snarf_region(ioaddr, DEPCA_TOTAL_SIZE);
-#endif
+ request_region(ioaddr, DEPCA_TOTAL_SIZE, dev->name);
/*
** Set up the maximum amount of network RAM(kB)
@@ -573,7 +585,7 @@ depca_probe1(struct device *dev, short ioaddr)
memset(lp->tx_ring, 0, sizeof(struct depca_tx_head)*j);
/* This should never happen. */
- if ((int)(lp->rx_ring) & 0x07) {
+ if ((long)(lp->rx_ring) & 0x07) {
printk("\n **ERROR** DEPCA Rx and Tx descriptor rings not on a quadword boundary.\n");
return -ENXIO;
}
@@ -753,9 +765,7 @@ depca_open(struct device *dev)
printk("nicsr: 0x%02x\n",inb(DEPCA_NICSR));
}
-#ifdef MODULE
- MOD_INC_USE_COUNT;
-#endif
+ MOD_INC_USE_COUNT;
return 0; /* Always succeed */
}
@@ -946,9 +956,8 @@ depca_start_xmit(struct sk_buff *skb, struct device *dev)
** The DEPCA interrupt handler.
*/
static void
-depca_interrupt(int reg_ptr)
+depca_interrupt(int irq, struct pt_regs * regs)
{
- int irq = pt_regs2irq(reg_ptr);
struct device *dev = (struct device *)(irq2dev_map[irq]);
struct depca_private *lp;
int csr0, ioaddr, nicsr;
@@ -1063,6 +1072,7 @@ depca_rx(struct device *dev)
** Notify the upper protocol layers that there is another
** packet to handle
*/
+ skb->protocol=eth_type_trans(skb,dev);
netif_rx(skb);
lp->stats.rx_packets++;
}
@@ -1168,9 +1178,7 @@ depca_close(struct device *dev)
irq2dev_map[dev->irq] = 0;
-#ifdef MODULE
MOD_DEC_USE_COUNT;
-#endif
return 0;
}
@@ -1237,35 +1245,28 @@ depca_get_stats(struct device *dev)
** num_addrs > 0 Multicast mode, receive normal and MC packets, and do
** best-effort filtering.
*/
+#define hash_filter lp->init_block.filter
+
static void
set_multicast_list(struct device *dev, int num_addrs, void *addrs)
{
short ioaddr = dev->base_addr;
struct depca_private *lp = (struct depca_private *)dev->priv;
- /* We take the simple way out and always enable promiscuous mode. */
- STOP_DEPCA; /* Temporarily stop the depca. */
-
- lp->init_block.mode = PROM; /* Set promiscuous mode */
- if (num_addrs >= 0) {
- short multicast_table[4];
- int i;
-
- SetMulticastFilter(num_addrs, (char *)addrs, (char *)multicast_table);
+ if (irq2dev_map[dev->irq] != NULL) {
+ STOP_DEPCA; /* Temporarily stop the depca. */
+ depca_init_ring(dev); /* Initialize the descriptor rings */
- /* We don't use the multicast table, but rely on upper-layer filtering. */
- memset(multicast_table, (num_addrs==0) ? 0 : -1, sizeof(multicast_table));
-
- for (i = 0; i < 4; i++) {
- lp->init_block.filter[i] = multicast_table[i];
+ if (num_addrs >= 0) {
+ SetMulticastFilter(num_addrs, (char *)addrs, (char *)hash_filter);
+ lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */
+ } else {
+ lp->init_block.mode |= PROM; /* Set promiscuous mode */
}
- lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */
- } else {
- lp->init_block.mode |= PROM; /* Set promiscuous mode */
- }
- outw(CSR0, DEPCA_ADDR);
- outw(IDON|INEA|STRT, DEPCA_DATA); /* Resume normal operation. */
+ LoadCSRs(dev); /* Reload CSR3 */
+ InitRestartDepca(dev); /* Resume normal operation. */
+ }
}
/*
@@ -1349,7 +1350,7 @@ static struct device *eisa_probe(struct device *dev)
ioaddr+=0x1000; /* get the first slot address */
for (status = -ENODEV, i=1; i<MAX_EISA_SLOTS; i++, ioaddr+=0x1000) {
- if (DevicePresent(ioaddr) == 0) {
+ if (EISA_signature(DEPCA_EISA_ID) == 0) {
if (num_depcas > 0) { /* only gets here in autoprobe */
dev = alloc_device(dev, ioaddr);
} else {
@@ -1451,96 +1452,93 @@ static char *DepcaSignature(unsigned long mem_addr)
** its ROM address counter to be initialized and enabled. Only enable
** if the first address octet is a 0x08 - this minimises the chances of
** messing around with some other hardware, but it assumes that this DEPCA
-** card initialized itself correctly. It also assumes that all past and
-** future DEPCA/EtherWORKS cards will have ethernet addresses beginning with
-** a 0x08.
+** card initialized itself correctly.
+**
+** Search the Ethernet address ROM for the signature. Since the ROM address
+** counter can start at an arbitrary point, the search must include the entire
+** probe sequence length plus the (length_of_the_signature - 1).
+** Stop the search IMMEDIATELY after the signature is found so that the
+** PROM address counter is correctly positioned at the start of the
+** ethernet address for later read out.
*/
-
static int DevicePresent(short ioaddr)
{
- static short fp=1,sigLength=0;
- static char devSig[] = PROBE_SEQUENCE;
+ union {
+ struct {
+ u_long a;
+ u_long b;
+ } llsig;
+ char Sig[sizeof(long) << 1];
+ } dev;
+ short sigLength=0;
char data;
int i, j, nicsr, status = 0;
- static char asc2hex(char value);
-/*
-** Initialize the counter on a DEPCA card. Two reads to ensure DEPCA ethernet
-** address counter is a) cleared and b) the correct data read.
-*/
- data = inb(DEPCA_PROM); /* clear counter */
+ data = inb(DEPCA_PROM); /* clear counter on DEPCA */
data = inb(DEPCA_PROM); /* read data */
-/*
-** Enable counter
-*/
- if (data == 0x08) {
+ if (data == 0x08) { /* Enable counter on DEPCA */
nicsr = inb(DEPCA_NICSR);
nicsr |= AAC;
outb(nicsr, DEPCA_NICSR);
}
-/*
-** Convert the ascii signature to a hex equivalent & pack in place
-*/
- if (fp) { /* only do this once!... */
- for (i=0,j=0;devSig[i] != '\0' && !status;i+=2,j++) {
- if ((devSig[i]=asc2hex(devSig[i]))>=0) {
- devSig[i]<<=4;
- if((devSig[i+1]=asc2hex(devSig[i+1]))>=0){
- devSig[j]=devSig[i]+devSig[i+1];
- } else {
- status= -1;
- }
+ dev.llsig.a = ETH_PROM_SIG;
+ dev.llsig.b = ETH_PROM_SIG;
+ sigLength = sizeof(long) << 1;
+
+ for (i=0,j=0;j<sigLength && i<PROBE_LENGTH+sigLength-1;i++) {
+ data = inb(DEPCA_PROM);
+ if (dev.Sig[j] == data) { /* track signature */
+ j++;
+ } else { /* lost signature; begin search again */
+ if (data == dev.Sig[0]) { /* rare case.... */
+ j=1;
} else {
- status= -1;
- }
- }
- sigLength=j;
- fp = 0;
- }
-
-/*
-** Search the Ethernet address ROM for the signature. Since the ROM address
-** counter can start at an arbitrary point, the search must include the entire
-** probe sequence length plus the (length_of_the_signature - 1).
-** Stop the search IMMEDIATELY after the signature is found so that the
-** PROM address counter is correctly positioned at the start of the
-** ethernet address for later read out.
-*/
- if (!status) {
- for (i=0,j=0;j<sigLength && i<PROBE_LENGTH+sigLength-1;i++) {
- data = inb(DEPCA_PROM);
- if (devSig[j] == data) { /* track signature */
- j++;
- } else { /* lost signature; begin search again */
j=0;
}
}
+ }
- if (j!=sigLength) {
- status = -ENODEV; /* search failed */
- }
+ if (j!=sigLength) {
+ status = -ENODEV; /* search failed */
}
return status;
}
-static char asc2hex(char value)
+/*
+** Look for a particular board name in the EISA configuration space
+*/
+static int EISA_signature(short iobase)
{
- value -= 0x30; /* normalise to 0..9 range */
- if (value >= 0) {
- if (value > 9) { /* but may not be 10..15 */
- value &= 0x1f; /* make A..F & a..f be the same */
- value -= 0x07; /* normalise to 10..15 range */
- if ((value < 0x0a) || (value > 0x0f)) { /* if outside range then... */
- value = -1; /* ...signal error */
- }
+ unsigned long i;
+ int status;
+ char *signatures[] = DEPCA_SIGNATURE;
+ char ManCode[8];
+ union {
+ u_long ID;
+ u_char Id[4];
+ } Eisa;
+
+ for (i=0; i<4; i++) {
+ Eisa.Id[i] = inb(iobase + i);
+ }
+
+ ManCode[0]=(((Eisa.Id[0]>>2)&0x1f)+0x40);
+ ManCode[1]=(((Eisa.Id[1]&0xe0)>>5)+((Eisa.Id[0]&0x03)<<3)+0x40);
+ ManCode[2]=(((Eisa.Id[2]>>4)&0x0f)+0x30);
+ ManCode[3]=((Eisa.Id[2]&0x0f)+0x30);
+ ManCode[4]=(((Eisa.Id[3]>>4)&0x0f)+0x30);
+ ManCode[5]='\0';
+
+ for (status = -ENXIO, i=0;*signatures[i] != '\0' && status;i++) {
+ if (strstr(ManCode, signatures[i]) != NULL) {
+ status = 0;
}
- } else { /* outside 0..9 range... */
- value = -1; /* ...signal error */
}
- return value; /* return hex char or error */
+
+ return status; /* return the device name string */
}
#ifdef MODULE
@@ -1548,12 +1546,22 @@ char kernel_version[] = UTS_RELEASE;
static struct device thisDepca = {
" ", /* device name inserted by /linux/drivers/net/net_init.c */
0, 0, 0, 0,
- 0x200, 7, /* I/O address, IRQ <--- EDIT THIS LINE FOR YOUR CONFIGURATION */
+ 0x200, 7, /* I/O address, IRQ */
0, 0, 0, NULL, depca_probe };
+
+/*
+ * This is a tweak to keep the insmod program happy. It can only
+ * set int values with var=value so we split these out.
+ */
+
+int irq=7; /* EDIT THESE LINE FOR YOUR CONFIGURATION */
+int io=0x200; /* Or use the irq= io= options to insmod */
int
init_module(void)
{
+ thisDepca.irq=irq;
+ thisDepca.base_addr=io;
if (register_netdev(&thisDepca) != 0)
return -EIO;
return 0;
@@ -1565,6 +1573,7 @@ cleanup_module(void)
if (MOD_IN_USE) {
printk("%s: device busy, remove delayed\n",thisDepca.name);
} else {
+ release_region(thisDepca.base_addr, DEPCA_TOTAL_SIZE);
unregister_netdev(&thisDepca);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 07:27:43 +0000