bagetlance.c
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上传日期:2013-02-24
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文件大小:38k
- /* $Id$
- * bagetlance.c: Ethernet driver for VME Lance cards on Baget/MIPS
- * This code stealed and adopted from linux/drivers/net/atarilance.c
- * See that for author info
- *
- * Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
- */
- /*
- * Driver code for Baget/Lance taken from atarilance.c, which also
- * works well in case of Besta. Most significant changes made here
- * related with 16BIT-only access to A24 space.
- */
- static char *version = "bagetlance.c: v1.1 11/10/98n";
- #include <linux/module.h>
- #include <linux/stddef.h>
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/string.h>
- #include <linux/ptrace.h>
- #include <linux/errno.h>
- #include <linux/slab.h>
- #include <linux/interrupt.h>
- #include <linux/init.h>
- #include <asm/irq.h>
- #include <asm/bitops.h>
- #include <asm/io.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <asm/baget/baget.h>
- #define BAGET_LANCE_IRQ BAGET_IRQ_MASK(0xdf)
- /*
- * Define following if you don't need 16BIT-only access to Lance memory
- * (Normally BAGET needs it)
- */
- #undef NORMAL_MEM_ACCESS
- /* Debug level:
- * 0 = silent, print only serious errors
- * 1 = normal, print error messages
- * 2 = debug, print debug infos
- * 3 = debug, print even more debug infos (packet data)
- */
- #define LANCE_DEBUG 1
- #ifdef LANCE_DEBUG
- static int lance_debug = LANCE_DEBUG;
- #else
- static int lance_debug = 1;
- #endif
- MODULE_PARM(lance_debug, "i");
- MODULE_PARM_DESC(lance_debug, "Lance debug level (0-3)");
- MODULE_LICENSE("GPL");
- /* Print debug messages on probing? */
- #undef LANCE_DEBUG_PROBE
- #define DPRINTK(n,a)
- do {
- if (lance_debug >= n)
- printk a;
- } while( 0 )
- #ifdef LANCE_DEBUG_PROBE
- # define PROBE_PRINT(a) printk a
- #else
- # define PROBE_PRINT(a)
- #endif
- /* These define the number of Rx and Tx buffers as log2. (Only powers
- * of two are valid)
- * Much more rx buffers (32) are reserved than tx buffers (8), since receiving
- * is more time critical then sending and packets may have to remain in the
- * board's memory when main memory is low.
- */
- /* Baget Lance has 64K on-board memory, so it looks we can't increase
- buffer quantity (40*1.5K is about 64K) */
- #define TX_LOG_RING_SIZE 3
- #define RX_LOG_RING_SIZE 5
- /* These are the derived values */
- #define TX_RING_SIZE (1 << TX_LOG_RING_SIZE)
- #define TX_RING_LEN_BITS (TX_LOG_RING_SIZE << 5)
- #define TX_RING_MOD_MASK (TX_RING_SIZE - 1)
- #define RX_RING_SIZE (1 << RX_LOG_RING_SIZE)
- #define RX_RING_LEN_BITS (RX_LOG_RING_SIZE << 5)
- #define RX_RING_MOD_MASK (RX_RING_SIZE - 1)
- /* The LANCE Rx and Tx ring descriptors. */
- struct lance_rx_head {
- volatile unsigned short base; /* Low word of base addr */
- #ifdef NORMAL_MEM_ACCESS
- /* Following two fields are joined into one short to guarantee
- 16BIT access to Baget lance registers */
- volatile unsigned char flag;
- unsigned char base_hi; /* High word of base addr (unused) */
- #else
- /* Following macros are used as replecements to 8BIT fields */
- #define GET_FLAG(h) (((h)->flag_base_hi >> 8) & 0xff)
- #define SET_FLAG(h,f) (h)->flag_base_hi = ((h)->flag_base_hi & 0xff) |
- (((unsigned)(f)) << 8)
- volatile unsigned short flag_base_hi;
- #endif
- volatile short buf_length; /* This length is 2s complement! */
- volatile short msg_length; /* This length is "normal". */
- };
- struct lance_tx_head {
- volatile unsigned short base; /* Low word of base addr */
- #ifdef NORMAL_MEM_ACCESS
- /* See comments above about 8BIT-access Baget A24-space problems */
- volatile unsigned char flag;
- unsigned char base_hi; /* High word of base addr (unused) */
- #else
- volatile unsigned short flag_base_hi;
- #endif
- volatile short length; /* Length is 2s complement! */
- volatile short misc;
- };
- struct ringdesc {
- volatile unsigned short adr_lo; /* Low 16 bits of address */
- #ifdef NORMAL_MEM_ACCESS
- /* See comments above about 8BIT-access Bage A24-space problems */
- unsigned char len; /* Length bits */
- unsigned char adr_hi; /* High 8 bits of address (unused) */
- #else
- volatile unsigned short len_adr_hi;
- #endif
- };
- /* The LANCE initialization block, described in databook. */
- struct lance_init_block {
- unsigned short mode; /* Pre-set mode */
- unsigned char hwaddr[6]; /* Physical ethernet address */
- unsigned filter[2]; /* Multicast filter (unused). */
- /* Receive and transmit ring base, along with length bits. */
- struct ringdesc rx_ring;
- struct ringdesc tx_ring;
- };
- /* The whole layout of the Lance shared memory */
- struct lance_memory {
- struct lance_init_block init;
- struct lance_tx_head tx_head[TX_RING_SIZE];
- struct lance_rx_head rx_head[RX_RING_SIZE];
- char packet_area[0]; /* packet data follow after the
- * init block and the ring
- * descriptors and are located
- * at runtime */
- };
- /* RieblCard specifics:
- * The original TOS driver for these cards reserves the area from offset
- * 0xee70 to 0xeebb for storing configuration data. Of interest to us is the
- * Ethernet address there, and the magic for verifying the data's validity.
- * The reserved area isn't touch by packet buffers. Furthermore, offset 0xfffe
- * is reserved for the interrupt vector number.
- */
- #define RIEBL_RSVD_START 0xee70
- #define RIEBL_RSVD_END 0xeec0
- #define RIEBL_MAGIC 0x09051990
- #define RIEBL_MAGIC_ADDR ((unsigned long *)(((char *)MEM) + 0xee8a))
- #define RIEBL_HWADDR_ADDR ((unsigned char *)(((char *)MEM) + 0xee8e))
- #define RIEBL_IVEC_ADDR ((unsigned short *)(((char *)MEM) + 0xfffe))
- /* This is a default address for the old RieblCards without a battery
- * that have no ethernet address at boot time. 00:00:36:04 is the
- * prefix for Riebl cards, the 00:00 at the end is arbitrary.
- */
- static unsigned char OldRieblDefHwaddr[6] = {
- 0x00, 0x00, 0x36, 0x04, 0x00, 0x00
- };
- /* I/O registers of the Lance chip */
- struct lance_ioreg {
- /* base+0x0 */ volatile unsigned short data;
- /* base+0x2 */ volatile unsigned short addr;
- unsigned char _dummy1[3];
- /* base+0x7 */ volatile unsigned char ivec;
- unsigned char _dummy2[5];
- /* base+0xd */ volatile unsigned char eeprom;
- unsigned char _dummy3;
- /* base+0xf */ volatile unsigned char mem;
- };
- /* Types of boards this driver supports */
- enum lance_type {
- OLD_RIEBL, /* old Riebl card without battery */
- NEW_RIEBL, /* new Riebl card with battery */
- PAM_CARD /* PAM card with EEPROM */
- };
- static char *lance_names[] = {
- "Riebl-Card (without battery)",
- "Riebl-Card (with battery)",
- "PAM intern card"
- };
- /* The driver's private device structure */
- struct lance_private {
- enum lance_type cardtype;
- struct lance_ioreg *iobase;
- struct lance_memory *mem;
- int cur_rx, cur_tx; /* The next free ring entry */
- int dirty_tx; /* Ring entries to be freed. */
- /* copy function */
- void *(*memcpy_f)( void *, const void *, size_t );
- struct net_device_stats stats;
- /* These two must be longs for set_bit() */
- long tx_full;
- long lock;
- };
- /* I/O register access macros */
- #define MEM lp->mem
- #define DREG IO->data
- #define AREG IO->addr
- #define REGA(a) ( AREG = (a), DREG )
- /* Definitions for packet buffer access: */
- #define PKT_BUF_SZ 1544
- /* Get the address of a packet buffer corresponding to a given buffer head */
- #define PKTBUF_ADDR(head) (((unsigned char *)(MEM)) + (head)->base)
- /* Possible memory/IO addresses for probing */
- struct lance_addr {
- unsigned long memaddr;
- unsigned long ioaddr;
- int slow_flag;
- } lance_addr_list[] = {
- { BAGET_LANCE_MEM_BASE, BAGET_LANCE_IO_BASE, 1 } /* Baget Lance */
- };
- #define N_LANCE_ADDR (sizeof(lance_addr_list)/sizeof(*lance_addr_list))
- #define LANCE_HI_BASE (0xff & (BAGET_LANCE_MEM_BASE >> 16))
- /* Definitions for the Lance */
- /* tx_head flags */
- #define TMD1_ENP 0x01 /* end of packet */
- #define TMD1_STP 0x02 /* start of packet */
- #define TMD1_DEF 0x04 /* deferred */
- #define TMD1_ONE 0x08 /* one retry needed */
- #define TMD1_MORE 0x10 /* more than one retry needed */
- #define TMD1_ERR 0x40 /* error summary */
- #define TMD1_OWN 0x80 /* ownership (set: chip owns) */
- #define TMD1_OWN_CHIP TMD1_OWN
- #define TMD1_OWN_HOST 0
- /* tx_head misc field */
- #define TMD3_TDR 0x03FF /* Time Domain Reflectometry counter */
- #define TMD3_RTRY 0x0400 /* failed after 16 retries */
- #define TMD3_LCAR 0x0800 /* carrier lost */
- #define TMD3_LCOL 0x1000 /* late collision */
- #define TMD3_UFLO 0x4000 /* underflow (late memory) */
- #define TMD3_BUFF 0x8000 /* buffering error (no ENP) */
- /* rx_head flags */
- #define RMD1_ENP 0x01 /* end of packet */
- #define RMD1_STP 0x02 /* start of packet */
- #define RMD1_BUFF 0x04 /* buffer error */
- #define RMD1_CRC 0x08 /* CRC error */
- #define RMD1_OFLO 0x10 /* overflow */
- #define RMD1_FRAM 0x20 /* framing error */
- #define RMD1_ERR 0x40 /* error summary */
- #define RMD1_OWN 0x80 /* ownership (set: ship owns) */
- #define RMD1_OWN_CHIP RMD1_OWN
- #define RMD1_OWN_HOST 0
- /* register names */
- #define CSR0 0 /* mode/status */
- #define CSR1 1 /* init block addr (low) */
- #define CSR2 2 /* init block addr (high) */
- #define CSR3 3 /* misc */
- #define CSR8 8 /* address filter */
- #define CSR15 15 /* promiscuous mode */
- /* CSR0 */
- /* (R=readable, W=writeable, S=set on write, C=clear on write) */
- #define CSR0_INIT 0x0001 /* initialize (RS) */
- #define CSR0_STRT 0x0002 /* start (RS) */
- #define CSR0_STOP 0x0004 /* stop (RS) */
- #define CSR0_TDMD 0x0008 /* transmit demand (RS) */
- #define CSR0_TXON 0x0010 /* transmitter on (R) */
- #define CSR0_RXON 0x0020 /* receiver on (R) */
- #define CSR0_INEA 0x0040 /* interrupt enable (RW) */
- #define CSR0_INTR 0x0080 /* interrupt active (R) */
- #define CSR0_IDON 0x0100 /* initialization done (RC) */
- #define CSR0_TINT 0x0200 /* transmitter interrupt (RC) */
- #define CSR0_RINT 0x0400 /* receiver interrupt (RC) */
- #define CSR0_MERR 0x0800 /* memory error (RC) */
- #define CSR0_MISS 0x1000 /* missed frame (RC) */
- #define CSR0_CERR 0x2000 /* carrier error (no heartbeat :-) (RC) */
- #define CSR0_BABL 0x4000 /* babble: tx-ed too many bits (RC) */
- #define CSR0_ERR 0x8000 /* error (RC) */
- /* CSR3 */
- #define CSR3_BCON 0x0001 /* byte control */
- #define CSR3_ACON 0 // fixme: 0x0002 /* ALE control */
- #define CSR3_BSWP 0x0004 /* byte swap (1=big endian) */
- /***************************** Prototypes *****************************/
- static int addr_accessible( volatile void *regp, int wordflag, int
- writeflag );
- static int lance_probe1( struct net_device *dev, struct lance_addr *init_rec );
- static int lance_open( struct net_device *dev );
- static void lance_init_ring( struct net_device *dev );
- static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev );
- static void lance_interrupt( int irq, void *dev_id, struct pt_regs *fp );
- static int lance_rx( struct net_device *dev );
- static int lance_close( struct net_device *dev );
- static struct net_device_stats *lance_get_stats( struct net_device *dev );
- static void set_multicast_list( struct net_device *dev );
- static int lance_set_mac_address( struct net_device *dev, void *addr );
- /************************* End of Prototypes **************************/
- /* Network traffic statistic (bytes) */
- int lance_stat = 0;
- static void update_lance_stat (int len) {
- lance_stat += len;
- }
- /*
- This function is used to access Baget/Lance memory to avoid
- 8/32BIT access to VAC A24 space
- ALL memcpy calls was chenged to this function to avoid dbe problems
- Don't confuse with function name -- it stays from original code
- */
- void *slow_memcpy( void *dst, const void *src, size_t len )
- {
- unsigned long to = (unsigned long)dst;
- unsigned long from = (unsigned long)src;
- unsigned long to_end = to +len;
-
- /* Unaligned flags */
- int odd_from = from & 1;
- int odd_to = to & 1;
- int odd_to_end = to_end & 1;
- /* Align for 16BIT-access first */
- register unsigned short *from_a = (unsigned short*) (from & ~1);
- register unsigned short *to_a = (unsigned short*) (to & ~1);
- register unsigned short *to_end_a = (unsigned short*) (to_end & ~1);
- /* Caching values -- not in loop invariant */
- register unsigned short from_v;
- register unsigned short to_v;
- /* Invariant is: from_a and to_a are pointers before or exactly to
- currently copying byte */
- if (odd_to) {
- /* First byte unaligned case */
- from_v = *from_a;
- to_v = *to_a;
- to_v &= ~0xff;
- to_v |= 0xff & (from_v >> (odd_from ? 0 : 8));
- *to_a++ = to_v;
- if (odd_from) from_a++;
- }
- if (odd_from == odd_to) {
- /* Same parity */
- while (to_a + 7 < to_end_a) {
- unsigned long dummy1, dummy2;
- unsigned long reg1, reg2, reg3, reg4;
- __asm__ __volatile__(
- ".settnoreordernt"
- ".settnoatnt"
- "lht%2,0(%1)nt"
- "nopnt"
- "lht%3,2(%1)nt"
- "sht%2,0(%0)nt"
- "lht%4,4(%1)nt"
- "sht%3,2(%0)nt"
- "lht%5,6(%1)nt"
- "sht%4,4(%0)nt"
- "lht%2,8(%1)nt"
- "sht%5,6(%0)nt"
- "lht%3,10(%1)nt"
- "sht%2,8(%0)nt"
- "lht%4,12(%1)nt"
- "sht%3,10(%0)nt"
- "lht%5,14(%1)nt"
- "sht%4,12(%0)nt"
- "nopnt"
- "sht%5,14(%0)nt"
- ".settatnt"
- ".settreorder"
- :"=r" (dummy1), "=r" (dummy2),
- "=&r" (reg1), "=&r" (reg2), "=&r" (reg3), "=&r" (reg4)
- :"0" (to_a), "1" (from_a)
- :"memory");
- to_a += 8;
- from_a += 8;
- }
- while (to_a < to_end_a) {
- *to_a++ = *from_a++;
- }
- } else {
- /* Different parity */
- from_v = *from_a;
- while (to_a < to_end_a) {
- unsigned short from_v_next;
- from_v_next = *++from_a;
- *to_a++ = ((from_v & 0xff)<<8) | ((from_v_next>>8) & 0xff);
- from_v = from_v_next;
- }
- }
- if (odd_to_end) {
- /* Last byte unaligned case */
- to_v = *to_a;
- from_v = *from_a;
- to_v &= ~0xff00;
- if (odd_from == odd_to) {
- to_v |= from_v & 0xff00;
- } else {
- to_v |= (from_v<<8) & 0xff00;
- }
- *to_a = to_v;
- }
- update_lance_stat( len );
- return( dst );
- }
- int __init bagetlance_probe( struct net_device *dev )
- { int i;
- static int found;
- SET_MODULE_OWNER(dev);
- if (found)
- /* Assume there's only one board possible... That seems true, since
- * the Riebl/PAM board's address cannot be changed. */
- return( -ENODEV );
- for( i = 0; i < N_LANCE_ADDR; ++i ) {
- if (lance_probe1( dev, &lance_addr_list[i] )) {
- found = 1;
- return( 0 );
- }
- }
- return( -ENODEV );
- }
- /* Derived from hwreg_present() in vme/config.c: */
- static int __init addr_accessible( volatile void *regp,
- int wordflag,
- int writeflag )
- {
- /* We have a fine function to do it */
- extern int try_read(unsigned long, int);
- return try_read((unsigned long)regp, sizeof(short)) != -1;
- }
- /* Original atari driver uses it */
- #define IRQ_TYPE_PRIO SA_INTERRUPT
- #define IRQ_SOURCE_TO_VECTOR(x) (x)
- static int __init lance_probe1( struct net_device *dev,
- struct lance_addr *init_rec )
- { volatile unsigned short *memaddr =
- (volatile unsigned short *)init_rec->memaddr;
- volatile unsigned short *ioaddr =
- (volatile unsigned short *)init_rec->ioaddr;
- struct lance_private *lp;
- struct lance_ioreg *IO;
- int i;
- static int did_version;
- unsigned short save1, save2;
- PROBE_PRINT(( "Probing for Lance card at mem %#lx io %#lxn",
- (long)memaddr, (long)ioaddr ));
- /* Test whether memory readable and writable */
- PROBE_PRINT(( "lance_probe1: testing memory to be accessiblen" ));
- if (!addr_accessible( memaddr, 1, 1 )) goto probe_fail;
- if ((unsigned long)memaddr >= KSEG2) {
- extern int kseg2_alloc_io (unsigned long addr, unsigned long size);
- if (kseg2_alloc_io((unsigned long)memaddr, BAGET_LANCE_MEM_SIZE)) {
- printk("bagetlance: unable map lance memoryn");
- goto probe_fail;
- }
- }
- /* Written values should come back... */
- PROBE_PRINT(( "lance_probe1: testing memory to be writable (1)n" ));
- save1 = *memaddr;
- *memaddr = 0x0001;
- if (*memaddr != 0x0001) goto probe_fail;
- PROBE_PRINT(( "lance_probe1: testing memory to be writable (2)n" ));
- *memaddr = 0x0000;
- if (*memaddr != 0x0000) goto probe_fail;
- *memaddr = save1;
- /* First port should be readable and writable */
- PROBE_PRINT(( "lance_probe1: testing ioport to be accessiblen" ));
- if (!addr_accessible( ioaddr, 1, 1 )) goto probe_fail;
- /* and written values should be readable */
- PROBE_PRINT(( "lance_probe1: testing ioport to be writeablen" ));
- save2 = ioaddr[1];
- ioaddr[1] = 0x0001;
- if (ioaddr[1] != 0x0001) goto probe_fail;
- /* The CSR0_INIT bit should not be readable */
- PROBE_PRINT(( "lance_probe1: testing CSR0 register function (1)n" ));
- save1 = ioaddr[0];
- ioaddr[1] = CSR0;
- ioaddr[0] = CSR0_INIT | CSR0_STOP;
- if (ioaddr[0] != CSR0_STOP) {
- ioaddr[0] = save1;
- ioaddr[1] = save2;
- goto probe_fail;
- }
- PROBE_PRINT(( "lance_probe1: testing CSR0 register function (2)n" ));
- ioaddr[0] = CSR0_STOP;
- if (ioaddr[0] != CSR0_STOP) {
- ioaddr[0] = save1;
- ioaddr[1] = save2;
- goto probe_fail;
- }
- /* Now ok... */
- PROBE_PRINT(( "lance_probe1: Lance card detectedn" ));
- goto probe_ok;
- probe_fail:
- return( 0 );
- probe_ok:
- init_etherdev( dev, sizeof(struct lance_private) );
- if (!dev->priv) {
- dev->priv = kmalloc( sizeof(struct lance_private), GFP_KERNEL );
- if (!dev->priv)
- return 0;
- }
- lp = (struct lance_private *)dev->priv;
- MEM = (struct lance_memory *)memaddr;
- IO = lp->iobase = (struct lance_ioreg *)ioaddr;
- dev->base_addr = (unsigned long)ioaddr; /* informational only */
- lp->memcpy_f = init_rec->slow_flag ? slow_memcpy : memcpy;
- REGA( CSR0 ) = CSR0_STOP;
- /* Now test for type: If the eeprom I/O port is readable, it is a
- * PAM card */
- if (addr_accessible( &(IO->eeprom), 0, 0 )) {
- /* Switch back to Ram */
- i = IO->mem;
- lp->cardtype = PAM_CARD;
- }
- #ifdef NORMAL_MEM_ACCESS
- else if (*RIEBL_MAGIC_ADDR == RIEBL_MAGIC) {
- #else
- else if (({
- unsigned short *a = (unsigned short*)RIEBL_MAGIC_ADDR;
- (((int)a[0]) << 16) + ((int)a[1]) == RIEBL_MAGIC;
- })) {
- #endif
- lp->cardtype = NEW_RIEBL;
- }
- else
- lp->cardtype = OLD_RIEBL;
- if (lp->cardtype == PAM_CARD ||
- memaddr == (unsigned short *)0xffe00000) {
- /* PAMs card and Riebl on ST use level 5 autovector */
- request_irq(BAGET_LANCE_IRQ, lance_interrupt, IRQ_TYPE_PRIO,
- "PAM/Riebl-ST Ethernet", dev);
- dev->irq = (unsigned short)BAGET_LANCE_IRQ;
- }
- else {
- /* For VME-RieblCards, request a free VME int;
- * (This must be unsigned long, since dev->irq is short and the
- * IRQ_MACHSPEC bit would be cut off...)
- */
- unsigned long irq = BAGET_LANCE_IRQ;
- if (!irq) {
- printk( "Lance: request for VME interrupt failedn" );
- return( 0 );
- }
- request_irq(irq, lance_interrupt, IRQ_TYPE_PRIO,
- "Riebl-VME Ethernet", dev);
- dev->irq = irq;
- }
- printk("%s: %s at io %#lx, mem %#lx, irq %d%s, hwaddr ",
- dev->name, lance_names[lp->cardtype],
- (unsigned long)ioaddr,
- (unsigned long)memaddr,
- dev->irq,
- init_rec->slow_flag ? " (slow memcpy)" : "" );
- /* Get the ethernet address */
- switch( lp->cardtype ) {
- case OLD_RIEBL:
- /* No ethernet address! (Set some default address) */
- slow_memcpy( dev->dev_addr, OldRieblDefHwaddr, 6 );
- break;
- case NEW_RIEBL:
- lp->memcpy_f( dev->dev_addr, RIEBL_HWADDR_ADDR, 6 );
- break;
- case PAM_CARD:
- i = IO->eeprom;
- for( i = 0; i < 6; ++i )
- dev->dev_addr[i] =
- ((((unsigned short *)MEM)[i*2] & 0x0f) << 4) |
- ((((unsigned short *)MEM)[i*2+1] & 0x0f));
- i = IO->mem;
- break;
- }
- for( i = 0; i < 6; ++i )
- printk( "%02x%s", dev->dev_addr[i], (i < 5) ? ":" : "n" );
- if (lp->cardtype == OLD_RIEBL) {
- printk( "%s: Warning: This is a default ethernet address!n",
- dev->name );
- printk( " Use "ifconfig hw ether ..." to set the address.n" );
- }
- MEM->init.mode = 0x0000; /* Disable Rx and Tx. */
- {
- unsigned char hwaddr[6];
- for( i = 0; i < 6; i++ )
- hwaddr[i] = dev->dev_addr[i^1]; /* <- 16 bit swap! */
- slow_memcpy(MEM->init.hwaddr, hwaddr, sizeof(hwaddr));
- }
- MEM->init.filter[0] = 0x00000000;
- MEM->init.filter[1] = 0x00000000;
- MEM->init.rx_ring.adr_lo = offsetof( struct lance_memory, rx_head );
- #ifdef NORMAL_MEM_ACCESS
- MEM->init.rx_ring.adr_hi = LANCE_HI_BASE;
- MEM->init.rx_ring.len = RX_RING_LEN_BITS;
- #else
- MEM->init.rx_ring.len_adr_hi =
- ((unsigned)RX_RING_LEN_BITS << 8) | LANCE_HI_BASE;
- #endif
- MEM->init.tx_ring.adr_lo = offsetof( struct lance_memory, tx_head );
- #ifdef NORMAL_MEM_ACCESS
- MEM->init.tx_ring.adr_hi = LANCE_HI_BASE;
- MEM->init.tx_ring.len = TX_RING_LEN_BITS;
- #else
- MEM->init.tx_ring.len_adr_hi =
- ((unsigned)TX_RING_LEN_BITS<<8) | LANCE_HI_BASE;
- #endif
- if (lp->cardtype == PAM_CARD)
- IO->ivec = IRQ_SOURCE_TO_VECTOR(dev->irq);
- else
- *RIEBL_IVEC_ADDR = IRQ_SOURCE_TO_VECTOR(dev->irq);
- if (did_version++ == 0)
- DPRINTK( 1, ( version ));
- /* The LANCE-specific entries in the device structure. */
- dev->open = &lance_open;
- dev->hard_start_xmit = &lance_start_xmit;
- dev->stop = &lance_close;
- dev->get_stats = &lance_get_stats;
- dev->set_multicast_list = &set_multicast_list;
- dev->set_mac_address = &lance_set_mac_address;
- dev->start = 0;
- memset( &lp->stats, 0, sizeof(lp->stats) );
- return( 1 );
- }
- static int lance_open( struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- struct lance_ioreg *IO = lp->iobase;
- int i;
- DPRINTK( 2, ( "%s: lance_open()n", dev->name ));
- lance_init_ring(dev);
- /* Re-initialize the LANCE, and start it when done. */
- REGA( CSR3 ) = CSR3_BSWP | (lp->cardtype == PAM_CARD ? CSR3_ACON : 0);
- REGA( CSR2 ) = 0;
- REGA( CSR1 ) = 0;
- REGA( CSR0 ) = CSR0_INIT;
- /* From now on, AREG is kept to point to CSR0 */
- i = 1000000;
- while (--i > 0)
- if (DREG & CSR0_IDON)
- break;
- if (i < 0 || (DREG & CSR0_ERR)) {
- DPRINTK( 2, ( "lance_open(): opening %s failed, i=%d, csr0=%04xn",
- dev->name, i, DREG ));
- DREG = CSR0_STOP;
- return( -EIO );
- }
- DREG = CSR0_IDON;
- DREG = CSR0_STRT;
- DREG = CSR0_INEA;
- dev->tbusy = 0;
- dev->interrupt = 0;
- dev->start = 1;
- DPRINTK( 2, ( "%s: LANCE is open, csr0 %04xn", dev->name, DREG ));
- return( 0 );
- }
- /* Initialize the LANCE Rx and Tx rings. */
- static void lance_init_ring( struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- int i;
- unsigned offset;
- lp->lock = 0;
- lp->tx_full = 0;
- lp->cur_rx = lp->cur_tx = 0;
- lp->dirty_tx = 0;
- offset = offsetof( struct lance_memory, packet_area );
- /* If the packet buffer at offset 'o' would conflict with the reserved area
- * of RieblCards, advance it */
- #define CHECK_OFFSET(o)
- do {
- if (lp->cardtype == OLD_RIEBL || lp->cardtype == NEW_RIEBL) {
- if (((o) < RIEBL_RSVD_START) ? (o)+PKT_BUF_SZ > RIEBL_RSVD_START
- : (o) < RIEBL_RSVD_END)
- (o) = RIEBL_RSVD_END;
- }
- } while(0)
- for( i = 0; i < TX_RING_SIZE; i++ ) {
- CHECK_OFFSET(offset);
- MEM->tx_head[i].base = offset;
- #ifdef NORMAL_MEM_ACCESS
- MEM->tx_head[i].flag = TMD1_OWN_HOST;
- MEM->tx_head[i].base_hi = LANCE_HI_BASE;
- #else
- MEM->tx_head[i].flag_base_hi =
- (TMD1_OWN_HOST<<8) | LANCE_HI_BASE;
- #endif
- MEM->tx_head[i].length = 0;
- MEM->tx_head[i].misc = 0;
- offset += PKT_BUF_SZ;
- }
- for( i = 0; i < RX_RING_SIZE; i++ ) {
- CHECK_OFFSET(offset);
- MEM->rx_head[i].base = offset;
- #ifdef NORMAL_MEM_ACCESS
- MEM->rx_head[i].flag = TMD1_OWN_CHIP;
- MEM->rx_head[i].base_hi = LANCE_HI_BASE;
- #else
- MEM->rx_head[i].flag_base_hi =
- (TMD1_OWN_CHIP<<8) | LANCE_HI_BASE;
- #endif
- MEM->rx_head[i].buf_length = -PKT_BUF_SZ;
- MEM->rx_head[i].msg_length = 0;
- offset += PKT_BUF_SZ;
- }
- }
- static int lance_start_xmit( struct sk_buff *skb, struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- struct lance_ioreg *IO = lp->iobase;
- int entry, len;
- struct lance_tx_head *head;
- unsigned long flags;
- /* Transmitter timeout, serious problems. */
- if (dev->tbusy) {
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < 20)
- return( 1 );
- AREG = CSR0;
- DPRINTK( 1, ( "%s: transmit timed out, status %04x, resetting.n",
- dev->name, DREG ));
- DREG = CSR0_STOP;
- /*
- * Always set BSWP after a STOP as STOP puts it back into
- * little endian mode.
- */
- REGA( CSR3 ) = CSR3_BSWP | (lp->cardtype == PAM_CARD ? CSR3_ACON : 0);
- lp->stats.tx_errors++;
- #ifndef final_version
- { int i;
- DPRINTK( 2, ( "Ring data: dirty_tx %d cur_tx %d%s cur_rx %dn",
- lp->dirty_tx, lp->cur_tx,
- lp->tx_full ? " (full)" : "",
- lp->cur_rx ));
- for( i = 0 ; i < RX_RING_SIZE; i++ )
- DPRINTK( 2, ( "rx #%d: base=%04x blen=%04x mlen=%04xn",
- i, MEM->rx_head[i].base,
- -MEM->rx_head[i].buf_length,
- MEM->rx_head[i].msg_length ));
- for( i = 0 ; i < TX_RING_SIZE; i++ )
- DPRINTK( 2, ( "tx #%d: base=%04x len=%04x misc=%04xn",
- i, MEM->tx_head[i].base,
- -MEM->tx_head[i].length,
- MEM->tx_head[i].misc ));
- }
- #endif
- lance_init_ring(dev);
- REGA( CSR0 ) = CSR0_INEA | CSR0_INIT | CSR0_STRT;
- dev->tbusy = 0;
- dev->trans_start = jiffies;
- return( 0 );
- }
- DPRINTK( 2, ( "%s: lance_start_xmit() called, csr0 %4.4x.n",
- dev->name, DREG ));
- /* Block a timer-based transmit from overlapping. This could better be
- done with atomic_swap(1, dev->tbusy), but set_bit() works as well. */
- if (test_and_set_bit( 0, (void*)&dev->tbusy ) != 0) {
- DPRINTK( 0, ( "%s: Transmitter access conflict.n", dev->name ));
- return 1;
- }
- if (test_and_set_bit( 0, (void*)&lp->lock ) != 0) {
- DPRINTK( 0, ( "%s: tx queue lock!.n", dev->name ));
- /* don't clear dev->tbusy flag. */
- return 1;
- }
- /* Fill in a Tx ring entry */
- if (lance_debug >= 3) {
- u_char *p;
- int i;
- printk( "%s: TX pkt type 0x%04x from ", dev->name,
- ((u_short *)skb->data)[6]);
- for( p = &((u_char *)skb->data)[6], i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" to ");
- for( p = (u_char *)skb->data, i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" data at 0x%08x len %dn", (int)skb->data,
- (int)skb->len );
- }
- /* We're not prepared for the int until the last flags are set/reset. And
- * the int may happen already after setting the OWN_CHIP... */
- save_flags(flags);
- cli();
- /* Mask to ring buffer boundary. */
- entry = lp->cur_tx & TX_RING_MOD_MASK;
- head = &(MEM->tx_head[entry]);
- /* Caution: the write order is important here, set the "ownership" bits
- * last.
- */
- /* The old LANCE chips doesn't automatically pad buffers to min. size. */
- len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN;
- /* PAM-Card has a bug: Can only send packets with even number of bytes! */
- if (lp->cardtype == PAM_CARD && (len & 1))
- ++len;
- head->length = -len;
- head->misc = 0;
- lp->memcpy_f( PKTBUF_ADDR(head), (void *)skb->data, skb->len );
- #ifdef NORMAL_MEM_ACCESS
- head->flag = TMD1_OWN_CHIP | TMD1_ENP | TMD1_STP;
- #else
- SET_FLAG(head,(TMD1_OWN_CHIP | TMD1_ENP | TMD1_STP));
- #endif
- lp->stats.tx_bytes += skb->len;
- dev_kfree_skb( skb );
- lp->cur_tx++;
- while( lp->cur_tx >= TX_RING_SIZE && lp->dirty_tx >= TX_RING_SIZE ) {
- lp->cur_tx -= TX_RING_SIZE;
- lp->dirty_tx -= TX_RING_SIZE;
- }
- /* Trigger an immediate send poll. */
- DREG = CSR0_INEA | CSR0_TDMD;
- dev->trans_start = jiffies;
- lp->lock = 0;
- #ifdef NORMAL_MEM_ACCESS
- if ((MEM->tx_head[(entry+1) & TX_RING_MOD_MASK].flag & TMD1_OWN) ==
- #else
- if ((GET_FLAG(&MEM->tx_head[(entry+1) & TX_RING_MOD_MASK]) & TMD1_OWN) ==
- #endif
- TMD1_OWN_HOST)
- dev->tbusy = 0;
- else
- lp->tx_full = 1;
- restore_flags(flags);
- return 0;
- }
- /* The LANCE interrupt handler. */
- static void lance_interrupt( int irq, void *dev_id, struct pt_regs *fp)
- {
- struct net_device *dev = dev_id;
- struct lance_private *lp;
- struct lance_ioreg *IO;
- int csr0, boguscnt = 10;
- if (dev == NULL) {
- DPRINTK( 1, ( "lance_interrupt(): interrupt for unknown device.n" ));
- return;
- }
- lp = (struct lance_private *)dev->priv;
- IO = lp->iobase;
- AREG = CSR0;
- if (dev->interrupt) {
- DPRINTK( 1, ( "Re-entering CAUSE=%08x STATUS=%08xn",
- read_32bit_cp0_register(CP0_CAUSE),
- read_32bit_cp0_register(CP0_STATUS) ));
- panic("lance: interrupt handler reentered !");
- }
- dev->interrupt = 1;
- while( ((csr0 = DREG) & (CSR0_ERR | CSR0_TINT | CSR0_RINT)) &&
- --boguscnt >= 0) {
- /* Acknowledge all of the current interrupt sources ASAP. */
- DREG = csr0 & ~(CSR0_INIT | CSR0_STRT | CSR0_STOP |
- CSR0_TDMD | CSR0_INEA);
- DPRINTK( 2, ( "%s: interrupt csr0=%04x new csr=%04x.n",
- dev->name, csr0, DREG ));
- if (csr0 & CSR0_RINT) /* Rx interrupt */
- lance_rx( dev );
- if (csr0 & CSR0_TINT) { /* Tx-done interrupt */
- int dirty_tx = lp->dirty_tx;
- while( dirty_tx < lp->cur_tx) {
- int entry = dirty_tx & TX_RING_MOD_MASK;
- #ifdef NORMAL_MEM_ACCESS
- int status = MEM->tx_head[entry].flag;
- #else
- int status = GET_FLAG(&MEM->tx_head[entry]);
- #endif
- if (status & TMD1_OWN_CHIP)
- break; /* It still hasn't been Txed */
- #ifdef NORMAL_MEM_ACCESS
- MEM->tx_head[entry].flag = 0;
- #else
- SET_FLAG(&MEM->tx_head[entry],0);
- #endif
- if (status & TMD1_ERR) {
- /* There was an major error, log it. */
- int err_status = MEM->tx_head[entry].misc;
- lp->stats.tx_errors++;
- if (err_status & TMD3_RTRY) lp->stats.tx_aborted_errors++;
- if (err_status & TMD3_LCAR) lp->stats.tx_carrier_errors++;
- if (err_status & TMD3_LCOL) lp->stats.tx_window_errors++;
- if (err_status & TMD3_UFLO) {
- /* Ackk! On FIFO errors the Tx unit is turned off! */
- lp->stats.tx_fifo_errors++;
- /* Remove this verbosity later! */
- DPRINTK( 1, ( "%s: Tx FIFO error! Status %04xn",
- dev->name, csr0 ));
- /* Restart the chip. */
- DREG = CSR0_STRT;
- }
- } else {
- if (status & (TMD1_MORE | TMD1_ONE | TMD1_DEF))
- lp->stats.collisions++;
- lp->stats.tx_packets++;
- }
- dirty_tx++;
- }
- #ifndef final_version
- if (lp->cur_tx - dirty_tx >= TX_RING_SIZE) {
- DPRINTK( 0, ( "out-of-sync dirty pointer,"
- " %d vs. %d, full=%d.n",
- dirty_tx, lp->cur_tx, lp->tx_full ));
- dirty_tx += TX_RING_SIZE;
- }
- #endif
- if (lp->tx_full && dev->tbusy
- && dirty_tx > lp->cur_tx - TX_RING_SIZE + 2) {
- /* The ring is no longer full, clear tbusy. */
- lp->tx_full = 0;
- dev->tbusy = 0;
- mark_bh( NET_BH );
- }
- lp->dirty_tx = dirty_tx;
- }
- /* Log misc errors. */
- if (csr0 & CSR0_BABL) lp->stats.tx_errors++; /* Tx babble. */
- if (csr0 & CSR0_MISS) lp->stats.rx_errors++; /* Missed a Rx frame. */
- if (csr0 & CSR0_MERR) {
- DPRINTK( 1, ( "%s: Bus master arbitration failure (?!?), "
- "status %04x.n", dev->name, csr0 ));
- /* Restart the chip. */
- DREG = CSR0_STRT;
- }
- }
- /* Clear any other interrupt, and set interrupt enable. */
- DREG = CSR0_BABL | CSR0_CERR | CSR0_MISS | CSR0_MERR |
- CSR0_IDON | CSR0_INEA;
- DPRINTK( 2, ( "%s: exiting interrupt, csr0=%#04x.n",
- dev->name, DREG ));
- dev->interrupt = 0;
- return;
- }
- static int lance_rx( struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- int entry = lp->cur_rx & RX_RING_MOD_MASK;
- int i;
- #ifdef NORMAL_MEM_ACCESS
- DPRINTK( 2, ( "%s: rx int, flag=%04xn", dev->name,
- MEM->rx_head[entry].flag ));
- #else
- DPRINTK( 2, ( "%s: rx int, flag=%04xn", dev->name,
- GET_FLAG(&MEM->rx_head[entry]) ));
- #endif
- /* If we own the next entry, it's a new packet. Send it up. */
- #ifdef NORMAL_MEM_ACCESS
- while( (MEM->rx_head[entry].flag & RMD1_OWN) == RMD1_OWN_HOST ) {
- #else
- while( (GET_FLAG(&MEM->rx_head[entry]) & RMD1_OWN) == RMD1_OWN_HOST ) {
- #endif
- struct lance_rx_head *head = &(MEM->rx_head[entry]);
- #ifdef NORMAL_MEM_ACCESS
- int status = head->flag;
- #else
- int status = GET_FLAG(head);
- #endif
- if (status != (RMD1_ENP|RMD1_STP)) { /* There was an error. */
- /* There is a tricky error noted by John Murphy,
- <murf@perftech.com> to Russ Nelson: Even with full-sized
- buffers it's possible for a jabber packet to use two
- buffers, with only the last correctly noting the error. */
- if (status & RMD1_ENP) /* Only count a general error at the */
- lp->stats.rx_errors++; /* end of a packet.*/
- if (status & RMD1_FRAM) lp->stats.rx_frame_errors++;
- if (status & RMD1_OFLO) lp->stats.rx_over_errors++;
- if (status & RMD1_CRC) lp->stats.rx_crc_errors++;
- if (status & RMD1_BUFF) lp->stats.rx_fifo_errors++;
- #ifdef NORMAL_MEM_ACCESS
- head->flag &= (RMD1_ENP|RMD1_STP);
- #else
- SET_FLAG(head,GET_FLAG(head) & (RMD1_ENP|RMD1_STP));
- #endif
- } else {
- /* Malloc up new buffer, compatible with net-3. */
- short pkt_len = head->msg_length & 0xfff;
- struct sk_buff *skb;
- if (pkt_len < 60) {
- printk( "%s: Runt packet!n", dev->name );
- lp->stats.rx_errors++;
- }
- else {
- skb = dev_alloc_skb( pkt_len+2 );
- if (skb == NULL) {
- DPRINTK( 1, ( "%s: Memory squeeze, deferring packet.n",
- dev->name ));
- for( i = 0; i < RX_RING_SIZE; i++ )
- #ifdef NORMAL_MEM_ACCESS
- if (MEM->rx_head[(entry+i) & RX_RING_MOD_MASK].flag &
- #else
- if (GET_FLAG(&MEM->rx_head[(entry+i) &
- RX_RING_MOD_MASK]) &
- #endif
- RMD1_OWN_CHIP)
- break;
- if (i > RX_RING_SIZE - 2) {
- lp->stats.rx_dropped++;
- #ifdef NORMAL_MEM_ACCESS
- head->flag |= RMD1_OWN_CHIP;
- #else
- SET_FLAG(head,GET_FLAG(head) | RMD1_OWN_CHIP);
- #endif
- lp->cur_rx++;
- }
- break;
- }
- if (lance_debug >= 3) {
- u_char *data = PKTBUF_ADDR(head), *p;
- printk( "%s: RX pkt type 0x%04x from ", dev->name,
- ((u_short *)data)[6]);
- for( p = &data[6], i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" to ");
- for( p = data, i = 0; i < 6; i++ )
- printk("%02x%s", *p++, i != 5 ? ":" : "" );
- printk(" data %02x %02x %02x %02x %02x %02x %02x %02x "
- "len %dn",
- data[15], data[16], data[17], data[18],
- data[19], data[20], data[21], data[22],
- pkt_len );
- }
- skb->dev = dev;
- skb_reserve( skb, 2 ); /* 16 byte align */
- skb_put( skb, pkt_len ); /* Make room */
- lp->memcpy_f( skb->data, PKTBUF_ADDR(head), pkt_len );
- skb->protocol = eth_type_trans( skb, dev );
- netif_rx( skb );
- dev->last_rx = jiffies;
- lp->stats.rx_packets++;
- lp->stats.rx_bytes += pkt_len;
- }
- }
- #ifdef NORMAL_MEM_ACCESS
- head->flag |= RMD1_OWN_CHIP;
- #else
- SET_FLAG(head,GET_FLAG(head) | RMD1_OWN_CHIP);
- #endif
- entry = (++lp->cur_rx) & RX_RING_MOD_MASK;
- }
- lp->cur_rx &= RX_RING_MOD_MASK;
- /* From lance.c (Donald Becker): */
- /* We should check that at least two ring entries are free. If not,
- we should free one and mark stats->rx_dropped++. */
- return 0;
- }
- static int lance_close( struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- struct lance_ioreg *IO = lp->iobase;
- dev->start = 0;
- dev->tbusy = 1;
- AREG = CSR0;
- DPRINTK( 2, ( "%s: Shutting down ethercard, status was %2.2x.n",
- dev->name, DREG ));
- /* We stop the LANCE here -- it occasionally polls
- memory if we don't. */
- DREG = CSR0_STOP;
- return 0;
- }
- static struct net_device_stats *lance_get_stats( struct net_device *dev )
- {
- struct lance_private *lp = (struct lance_private *)dev->priv;
- return &lp->stats;
- }
- /* Set or clear the multicast filter for this adaptor.
- num_addrs == -1 Promiscuous mode, receive all packets
- num_addrs == 0 Normal mode, clear multicast list
- num_addrs > 0 Multicast mode, receive normal and MC packets, and do
- best-effort filtering.
- */
- static void set_multicast_list( struct net_device *dev )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- struct lance_ioreg *IO = lp->iobase;
- if (!dev->start)
- /* Only possible if board is already started */
- return;
- /* We take the simple way out and always enable promiscuous mode. */
- DREG = CSR0_STOP; /* Temporarily stop the lance. */
- if (dev->flags & IFF_PROMISC) {
- /* Log any net taps. */
- DPRINTK( 1, ( "%s: Promiscuous mode enabled.n", dev->name ));
- REGA( CSR15 ) = 0x8000; /* Set promiscuous mode */
- } else {
- short multicast_table[4];
- int num_addrs = dev->mc_count;
- int i;
- /* 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++ )
- REGA( CSR8+i ) = multicast_table[i];
- REGA( CSR15 ) = 0; /* Unset promiscuous mode */
- }
- /*
- * Always set BSWP after a STOP as STOP puts it back into
- * little endian mode.
- */
- REGA( CSR3 ) = CSR3_BSWP | (lp->cardtype == PAM_CARD ? CSR3_ACON : 0);
- /* Resume normal operation and reset AREG to CSR0 */
- REGA( CSR0 ) = CSR0_IDON | CSR0_INEA | CSR0_STRT;
- }
- /* This is needed for old RieblCards and possible for new RieblCards */
- static int lance_set_mac_address( struct net_device *dev, void *addr )
- { struct lance_private *lp = (struct lance_private *)dev->priv;
- struct sockaddr *saddr = addr;
- int i;
- if (lp->cardtype != OLD_RIEBL && lp->cardtype != NEW_RIEBL)
- return( -EOPNOTSUPP );
- if (dev->start) {
- /* Only possible while card isn't started */
- DPRINTK( 1, ( "%s: hwaddr can be set only while card isn't open.n",
- dev->name ));
- return( -EIO );
- }
- slow_memcpy( dev->dev_addr, saddr->sa_data, dev->addr_len );
- {
- unsigned char hwaddr[6];
- for( i = 0; i < 6; i++ )
- hwaddr[i] = dev->dev_addr[i^1]; /* <- 16 bit swap! */
- slow_memcpy(MEM->init.hwaddr, hwaddr, sizeof(hwaddr));
- }
- lp->memcpy_f( RIEBL_HWADDR_ADDR, dev->dev_addr, 6 );
- /* set also the magic for future sessions */
- #ifdef NORMAL_MEM_ACCESS
- *RIEBL_MAGIC_ADDR = RIEBL_MAGIC;
- #else
- {
- unsigned long magic = RIEBL_MAGIC;
- slow_memcpy(RIEBL_MAGIC_ADDR, &magic, sizeof(*RIEBL_MAGIC_ADDR));
- }
- #endif
- return( 0 );
- }
- #ifdef MODULE
- static struct net_device bagetlance_dev;
- int init_module(void)
- { int err;
- bagetlance_dev.init = bagetlance_probe;
- if ((err = register_netdev( &bagetlance_dev ))) {
- if (err == -EIO) {
- printk( "No Vme Lance board found. Module not loaded.n");
- }
- return( err );
- }
- return( 0 );
- }
- void cleanup_module(void)
- {
- unregister_netdev( &bagetlance_dev );
- }
- #endif /* MODULE */
- /*
- * Local variables:
- * c-indent-level: 4
- * tab-width: 4
- * End:
- */