diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1999-01-04 16:03:48 +0000 |
---|---|---|
committer | Ralf Baechle <ralf@linux-mips.org> | 1999-01-04 16:03:48 +0000 |
commit | 78c388aed2b7184182c08428db1de6c872d815f5 (patch) | |
tree | 4b2003b1b4ceb241a17faa995da8dd1004bb8e45 /drivers/net/3c523.c | |
parent | eb7a5bf93aaa4be1d7c6181100ab7639e74d67f7 (diff) |
Merge with Linux 2.1.131 and more MIPS goodies.
(Did I mention that CVS is buggy ...)
Diffstat (limited to 'drivers/net/3c523.c')
-rw-r--r-- | drivers/net/3c523.c | 1916 |
1 files changed, 942 insertions, 974 deletions
diff --git a/drivers/net/3c523.c b/drivers/net/3c523.c index 9a818d4d4..968168d01 100644 --- a/drivers/net/3c523.c +++ b/drivers/net/3c523.c @@ -1,84 +1,84 @@ /* -net-3-driver for the 3c523 Etherlink/MC card (i82586 Ethernet chip) + net-3-driver for the 3c523 Etherlink/MC card (i82586 Ethernet chip) -This is an extension to the Linux operating system, and is covered by the -same Gnu Public License that covers that work. + This is an extension to the Linux operating system, and is covered by the + same Gnu Public License that covers that work. -Copyright 1995, 1996 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca) + Copyright 1995, 1996 by Chris Beauregard (cpbeaure@undergrad.math.uwaterloo.ca) -This is basically Michael Hipp's ni52 driver, with a new probing -algorithm and some minor changes to the 82586 CA and reset routines. -Thanks a lot Michael for a really clean i82586 implementation! Unless -otherwise documented in ni52.c, any bugs are mine. + This is basically Michael Hipp's ni52 driver, with a new probing + algorithm and some minor changes to the 82586 CA and reset routines. + Thanks a lot Michael for a really clean i82586 implementation! Unless + otherwise documented in ni52.c, any bugs are mine. -Contrary to the Ethernet-HOWTO, this isn't based on the 3c507 driver in -any way. The ni52 is a lot easier to modify. + Contrary to the Ethernet-HOWTO, this isn't based on the 3c507 driver in + any way. The ni52 is a lot easier to modify. -sources: - ni52.c + sources: + ni52.c - Crynwr packet driver collection was a great reference for my first - attempt at this sucker. The 3c507 driver also helped, until I noticed - that ni52.c was a lot nicer. + Crynwr packet driver collection was a great reference for my first + attempt at this sucker. The 3c507 driver also helped, until I noticed + that ni52.c was a lot nicer. - EtherLink/MC: Micro Channel Ethernet Adapter Technical Reference - Manual, courtesy of 3Com CardFacts, documents the 3c523-specific - stuff. Information on CardFacts is found in the Ethernet HOWTO. - Also see <a href="http://www.3com.com/"> + EtherLink/MC: Micro Channel Ethernet Adapter Technical Reference + Manual, courtesy of 3Com CardFacts, documents the 3c523-specific + stuff. Information on CardFacts is found in the Ethernet HOWTO. + Also see <a href="http://www.3com.com/"> - Microprocessor Communications Support Chips, T.J. Byers, ISBN - 0-444-01224-9, has a section on the i82586. It tells you just enough - to know that you really don't want to learn how to program the chip. + Microprocessor Communications Support Chips, T.J. Byers, ISBN + 0-444-01224-9, has a section on the i82586. It tells you just enough + to know that you really don't want to learn how to program the chip. - The original device probe code was stolen from ps2esdi.c + The original device probe code was stolen from ps2esdi.c -Known Problems: - Since most of the code was stolen from ni52.c, you'll run across the - same bugs in the 0.62 version of ni52.c, plus maybe a few because of - the 3c523 idiosynchacies. The 3c523 has 16K of RAM though, so there - shouldn't be the overrun problem that the 8K ni52 has. + Known Problems: + Since most of the code was stolen from ni52.c, you'll run across the + same bugs in the 0.62 version of ni52.c, plus maybe a few because of + the 3c523 idiosynchacies. The 3c523 has 16K of RAM though, so there + shouldn't be the overrun problem that the 8K ni52 has. - This driver is for a 16K adapter. It should work fine on the 64K - adapters, but it will only use one of the 4 banks of RAM. Modifying - this for the 64K version would require a lot of heinous bank - switching, which I'm sure not interested in doing. If you try to - implement a bank switching version, you'll basically have to remember - what bank is enabled and do a switch everytime you access a memory - location that's not current. You'll also have to remap pointers on - the driver side, because it only knows about 16K of the memory. - Anyone desperate or masochistic enough to try? + This driver is for a 16K adapter. It should work fine on the 64K + adapters, but it will only use one of the 4 banks of RAM. Modifying + this for the 64K version would require a lot of heinous bank + switching, which I'm sure not interested in doing. If you try to + implement a bank switching version, you'll basically have to remember + what bank is enabled and do a switch everytime you access a memory + location that's not current. You'll also have to remap pointers on + the driver side, because it only knows about 16K of the memory. + Anyone desperate or masochistic enough to try? - It seems to be stable now when multiple transmit buffers are used. I - can't see any performance difference, but then I'm working on a 386SX. + It seems to be stable now when multiple transmit buffers are used. I + can't see any performance difference, but then I'm working on a 386SX. - Multicast doesn't work. It doesn't even pretend to work. Don't use - it. Don't compile your kernel with multicast support. I don't know - why. + Multicast doesn't work. It doesn't even pretend to work. Don't use + it. Don't compile your kernel with multicast support. I don't know + why. -Features: - This driver is useable as a loadable module. If you try to specify an - IRQ or a IO address (via insmod 3c523.o irq=xx io=0xyyy), it will - search the MCA slots until it finds a 3c523 with the specified - parameters. + Features: + This driver is useable as a loadable module. If you try to specify an + IRQ or a IO address (via insmod 3c523.o irq=xx io=0xyyy), it will + search the MCA slots until it finds a 3c523 with the specified + parameters. - This driver should support multiple ethernet cards, but I can't test - that. If someone would I'd greatly appreciate it. + This driver should support multiple ethernet cards, but I can't test + that. If someone would I'd greatly appreciate it. - This has been tested with both BNC and TP versions, internal and - external transceivers. Haven't tested with the 64K version (that I - know of). + This has been tested with both BNC and TP versions, internal and + external transceivers. Haven't tested with the 64K version (that I + know of). -History: - Jan 1st, 1996 - first public release - Feb 4th, 1996 - update to 1.3.59, incorporated multicast diffs from ni52.c - Feb 15th, 1996 - added shared irq support + History: + Jan 1st, 1996 + first public release + Feb 4th, 1996 + update to 1.3.59, incorporated multicast diffs from ni52.c + Feb 15th, 1996 + added shared irq support - $Header: /fsys2/home/chrisb/linux-1.3.59-MCA/drivers/net/RCS/3c523.c,v 1.1 1996/02/05 01:53:46 chrisb Exp chrisb $ -*/ + $Header: /fsys2/home/chrisb/linux-1.3.59-MCA/drivers/net/RCS/3c523.c,v 1.1 1996/02/05 01:53:46 chrisb Exp chrisb $ + */ #ifdef MODULE #include <linux/module.h> @@ -105,8 +105,8 @@ History: #include "3c523.h" /*************************************************************************/ -#define DEBUG /* debug on */ -#define SYSBUSVAL 0 /* 1 = 8 Bit, 0 = 16 bit - 3c523 only does 16 bit*/ +#define DEBUG /* debug on */ +#define SYSBUSVAL 0 /* 1 = 8 Bit, 0 = 16 bit - 3c523 only does 16 bit */ #define make32(ptr16) (p->memtop + (short) (ptr16) ) #define make24(ptr32) ((char *) (ptr32) - p->base) @@ -114,11 +114,19 @@ History: /*************************************************************************/ /* - Tables to which we can map values in the configuration registers. -*/ -static int irq_table[] __initdata = {12, 7, 3, 9}; -static int csr_table[] __initdata = {0x300, 0x1300, 0x2300, 0x3300}; -static int shm_table[] __initdata = {0x0c0000, 0x0c8000, 0x0d0000, 0x0d8000}; + Tables to which we can map values in the configuration registers. + */ +static int irq_table[] __initdata = { + 12, 7, 3, 9 +}; + +static int csr_table[] __initdata = { + 0x300, 0x1300, 0x2300, 0x3300 +}; + +static int shm_table[] __initdata = { + 0x0c0000, 0x0c8000, 0x0d0000, 0x0d8000 +}; /******************* how to calculate the buffers ***************************** @@ -135,21 +143,21 @@ sizeof(nop_cmd) = 8; * if you don't know the driver, better do not change this values: */ -#define RECV_BUFF_SIZE 1524 /* slightly oversized */ -#define XMIT_BUFF_SIZE 1524 /* slightly oversized */ -#define NUM_XMIT_BUFFS 4 /* config for both, 8K and 16K shmem */ -#define NUM_RECV_BUFFS_8 1 /* config for 8K shared mem */ -#define NUM_RECV_BUFFS_16 6 /* config for 16K shared mem */ +#define RECV_BUFF_SIZE 1524 /* slightly oversized */ +#define XMIT_BUFF_SIZE 1524 /* slightly oversized */ +#define NUM_XMIT_BUFFS 4 /* config for both, 8K and 16K shmem */ +#define NUM_RECV_BUFFS_8 1 /* config for 8K shared mem */ +#define NUM_RECV_BUFFS_16 6 /* config for 16K shared mem */ #if (NUM_XMIT_BUFFS == 1) -#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ +#define NO_NOPCOMMANDS /* only possible with NUM_XMIT_BUFFS=1 */ #endif /**************************************************************************/ #define DELAY(x) {int i=jiffies; \ if(loops_per_sec == 1) \ - while(i+(x)>jiffies); \ + while(time_after(i+(x), jiffies)); \ else \ __delay((loops_per_sec>>5)*x); \ } @@ -167,42 +175,41 @@ sizeof(nop_cmd) = 8; dev->name,__LINE__); \ elmc_id_reset586(); } } } -static void elmc_interrupt(int irq,void *dev_id,struct pt_regs *reg_ptr); -static int elmc_open(struct device *dev); -static int elmc_close(struct device *dev); -static int elmc_send_packet(struct sk_buff *,struct device *); -static struct net_device_stats *elmc_get_stats(struct device *dev); -static void set_multicast_list(struct device *dev); +static void elmc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr); +static int elmc_open(struct device *dev); +static int elmc_close(struct device *dev); +static int elmc_send_packet(struct sk_buff *, struct device *); +static struct net_device_stats *elmc_get_stats(struct device *dev); +static void set_multicast_list(struct device *dev); /* helper-functions */ -static int init586(struct device *dev); -static int check586(struct device *dev,char *where,unsigned size); -static void alloc586(struct device *dev); -static void startrecv586(struct device *dev); -static void *alloc_rfa(struct device *dev,void *ptr); -static void elmc_rcv_int(struct device *dev); -static void elmc_xmt_int(struct device *dev); -static void elmc_rnr_int(struct device *dev); - -struct priv -{ +static int init586(struct device *dev); +static int check586(struct device *dev, char *where, unsigned size); +static void alloc586(struct device *dev); +static void startrecv586(struct device *dev); +static void *alloc_rfa(struct device *dev, void *ptr); +static void elmc_rcv_int(struct device *dev); +static void elmc_xmt_int(struct device *dev); +static void elmc_rnr_int(struct device *dev); + +struct priv { struct net_device_stats stats; unsigned long base; char *memtop; - volatile struct rfd_struct *rfd_last,*rfd_top,*rfd_first; - volatile struct scp_struct *scp; /* volatile is important */ - volatile struct iscp_struct *iscp; /* volatile is important */ - volatile struct scb_struct *scb; /* volatile is important */ - volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; + volatile struct rfd_struct *rfd_last, *rfd_top, *rfd_first; + volatile struct scp_struct *scp; /* volatile is important */ + volatile struct iscp_struct *iscp; /* volatile is important */ + volatile struct scb_struct *scb; /* volatile is important */ + volatile struct tbd_struct *xmit_buffs[NUM_XMIT_BUFFS]; volatile struct transmit_cmd_struct *xmit_cmds[NUM_XMIT_BUFFS]; #if (NUM_XMIT_BUFFS == 1) volatile struct nop_cmd_struct *nop_cmds[2]; #else volatile struct nop_cmd_struct *nop_cmds[NUM_XMIT_BUFFS]; #endif - volatile int nop_point,num_recv_buffs; - volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; - volatile int xmit_count,xmit_last; + volatile int nop_point, num_recv_buffs; + volatile char *xmit_cbuffs[NUM_XMIT_BUFFS]; + volatile int xmit_count, xmit_last; volatile int slot; }; @@ -210,379 +217,368 @@ struct priv #define elmc_reset586() {elmc_do_reset586(dev->base_addr,ELMC_CTRL_INTE);} /* with interrupts disabled - this will clear the interrupt bit in the -3c523 control register, and won't put it back. This effectively -disables interrupts on the card. */ + 3c523 control register, and won't put it back. This effectively + disables interrupts on the card. */ #define elmc_id_attn586() {elmc_do_attn586(dev->base_addr,0);} #define elmc_id_reset586() {elmc_do_reset586(dev->base_addr,0);} /*************************************************************************/ /* - Do a Channel Attention on the 3c523. This is extremely board dependent. -*/ -static -void -elmc_do_attn586( int ioaddr, int ints ) { - /* the 3c523 requires a minimum of 500 ns. The delays here might be - a little too large, and hence they may cut the performance of the - card slightly. If someone who knows a little more about Linux - timing would care to play with these, I'd appreciate it. */ - - /* this bit masking stuff is crap. I'd rather have separate - registers with strobe triggers for each of these functions. <sigh> - Ya take what ya got. */ - - outb( ELMC_CTRL_RST|0x3|ELMC_CTRL_CA|ints, ioaddr + ELMC_CTRL); - DELAY_16(); /* > 500 ns */ - outb( ELMC_CTRL_RST|0x3|ints, ioaddr + ELMC_CTRL); + Do a Channel Attention on the 3c523. This is extremely board dependent. + */ +static void elmc_do_attn586(int ioaddr, int ints) +{ + /* the 3c523 requires a minimum of 500 ns. The delays here might be + a little too large, and hence they may cut the performance of the + card slightly. If someone who knows a little more about Linux + timing would care to play with these, I'd appreciate it. */ + + /* this bit masking stuff is crap. I'd rather have separate + registers with strobe triggers for each of these functions. <sigh> + Ya take what ya got. */ + + outb(ELMC_CTRL_RST | 0x3 | ELMC_CTRL_CA | ints, ioaddr + ELMC_CTRL); + DELAY_16(); /* > 500 ns */ + outb(ELMC_CTRL_RST | 0x3 | ints, ioaddr + ELMC_CTRL); } /*************************************************************************/ /* - Reset the 82586 on the 3c523. Also very board dependent. -*/ -static -void -elmc_do_reset586( int ioaddr, int ints ) { - /* toggle the RST bit low then high */ - outb( 0x3|ELMC_CTRL_LBK, ioaddr + ELMC_CTRL ); - DELAY_16(); /* > 500 ns */ - outb( ELMC_CTRL_RST|ELMC_CTRL_LBK|0x3, ioaddr + ELMC_CTRL ); - - elmc_do_attn586( ioaddr, ints ); + Reset the 82586 on the 3c523. Also very board dependent. + */ +static void elmc_do_reset586(int ioaddr, int ints) +{ + /* toggle the RST bit low then high */ + outb(0x3 | ELMC_CTRL_LBK, ioaddr + ELMC_CTRL); + DELAY_16(); /* > 500 ns */ + outb(ELMC_CTRL_RST | ELMC_CTRL_LBK | 0x3, ioaddr + ELMC_CTRL); + + elmc_do_attn586(ioaddr, ints); } /********************************************** * close device */ -static -int -elmc_close(struct device *dev) { - elmc_id_reset586(); /* the hard way to stop the receiver */ +static int elmc_close(struct device *dev) +{ + elmc_id_reset586(); /* the hard way to stop the receiver */ - free_irq(dev->irq, dev); + free_irq(dev->irq, dev); - dev->start = 0; - dev->tbusy = 0; + dev->start = 0; + dev->tbusy = 0; #ifdef MODULE MOD_DEC_USE_COUNT; #endif - return 0; + return 0; } /********************************************** * open device */ -static -int -elmc_open(struct device *dev) { - - elmc_id_attn586(); /* disable interrupts */ +static int elmc_open(struct device *dev) +{ - if(request_irq( dev->irq, &elmc_interrupt, SA_SHIRQ|SA_SAMPLE_RANDOM, - "3c523", dev ) - ) { - printk( "%s: couldn't get irq %d\n", dev->name, dev->irq ); - elmc_id_reset586(); - return -EAGAIN; - } + elmc_id_attn586(); /* disable interrupts */ - alloc586(dev); - init586(dev); - startrecv586(dev); + if (request_irq(dev->irq, &elmc_interrupt, SA_SHIRQ | SA_SAMPLE_RANDOM, + "3c523", dev) + ) { + printk("%s: couldn't get irq %d\n", dev->name, dev->irq); + elmc_id_reset586(); + return -EAGAIN; + } + alloc586(dev); + init586(dev); + startrecv586(dev); - dev->interrupt = 0; - dev->tbusy = 0; - dev->start = 1; + dev->interrupt = 0; + dev->tbusy = 0; + dev->start = 1; #ifdef MODULE MOD_INC_USE_COUNT; #endif - return 0; /* most done by init */ + return 0; /* most done by init */ } /********************************************** * Check to see if there's an 82586 out there. */ -__initfunc(static -int -check586( struct device *dev, char *where, unsigned size)) { - struct priv *p = (struct priv *) dev->priv; - char *iscp_addrs[2]; - int i = 0; - - p->base = (unsigned long) where + size - 0x01000000; - p->memtop = where + size; - p->scp = (struct scp_struct *)(p->base + SCP_DEFAULT_ADDRESS); - memset((char *)p->scp,0, sizeof(struct scp_struct)); - p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ +__initfunc(static int check586(struct device *dev, char *where, unsigned size)) +{ + struct priv *p = (struct priv *) dev->priv; + char *iscp_addrs[2]; + int i = 0; - iscp_addrs[0] = where; - iscp_addrs[1]= (char *) p->scp - sizeof(struct iscp_struct); + p->base = (unsigned long) where + size - 0x01000000; + p->memtop = where + size; + p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); + memset((char *) p->scp, 0, sizeof(struct scp_struct)); + p->scp->sysbus = SYSBUSVAL; /* 1 = 8Bit-Bus, 0 = 16 Bit */ - for( i = 0; i < 2; i ++ ) { - p->iscp = (struct iscp_struct *) iscp_addrs[i]; - memset((char *)p->iscp,0, sizeof(struct iscp_struct)); + iscp_addrs[0] = where; + iscp_addrs[1] = (char *) p->scp - sizeof(struct iscp_struct); - p->scp->iscp = make24(p->iscp); - p->iscp->busy = 1; + for (i = 0; i < 2; i++) { + p->iscp = (struct iscp_struct *) iscp_addrs[i]; + memset((char *) p->iscp, 0, sizeof(struct iscp_struct)); - elmc_id_reset586(); + p->scp->iscp = make24(p->iscp); + p->iscp->busy = 1; - /* reset586 does an implicit CA */ + elmc_id_reset586(); - /* apparently, you sometimes have to kick the 82586 twice... */ - elmc_id_attn586(); + /* reset586 does an implicit CA */ - if(p->iscp->busy) { /* i82586 clears 'busy' after successful init */ - return 0; - } - } + /* apparently, you sometimes have to kick the 82586 twice... */ + elmc_id_attn586(); - return 1; + if (p->iscp->busy) { /* i82586 clears 'busy' after successful init */ + return 0; + } + } + return 1; } /****************************************************************** * set iscp at the right place, called by elmc_probe and open586. */ -void -alloc586( struct device *dev ) { - struct priv *p = (struct priv *) dev->priv; - - elmc_id_reset586(); - DELAY(2); +void alloc586(struct device *dev) +{ + struct priv *p = (struct priv *) dev->priv; - p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); - p->scb = (struct scb_struct *) (dev->mem_start); - p->iscp = (struct iscp_struct *) ((char *)p->scp - sizeof(struct iscp_struct)); + elmc_id_reset586(); + DELAY(2); - memset((char *) p->iscp,0,sizeof(struct iscp_struct)); - memset((char *) p->scp ,0,sizeof(struct scp_struct)); + p->scp = (struct scp_struct *) (p->base + SCP_DEFAULT_ADDRESS); + p->scb = (struct scb_struct *) (dev->mem_start); + p->iscp = (struct iscp_struct *) ((char *) p->scp - sizeof(struct iscp_struct)); - p->scp->iscp = make24(p->iscp); - p->scp->sysbus = SYSBUSVAL; - p->iscp->scb_offset = make16(p->scb); + memset((char *) p->iscp, 0, sizeof(struct iscp_struct)); + memset((char *) p->scp, 0, sizeof(struct scp_struct)); - p->iscp->busy = 1; - elmc_id_reset586(); - elmc_id_attn586(); + p->scp->iscp = make24(p->iscp); + p->scp->sysbus = SYSBUSVAL; + p->iscp->scb_offset = make16(p->scb); - DELAY(2); + p->iscp->busy = 1; + elmc_id_reset586(); + elmc_id_attn586(); - if(p->iscp->busy) { - printk("%s: Init-Problems (alloc).\n",dev->name); - } + DELAY(2); - memset((char *)p->scb,0,sizeof(struct scb_struct)); + if (p->iscp->busy) { + printk("%s: Init-Problems (alloc).\n", dev->name); + } + memset((char *) p->scb, 0, sizeof(struct scb_struct)); } /*****************************************************************/ -static int -elmc_getinfo( char* buf, int slot, void* d ) { + +static int elmc_getinfo(char *buf, int slot, void *d) +{ int len = 0; - struct device* dev = (struct device*) d; + struct device *dev = (struct device *) d; int i; - if( dev == NULL ) return len; - - len += sprintf( buf+len, "Revision: 0x%x\n", - inb( dev->base_addr + ELMC_REVISION ) & 0xf ); - len += sprintf( buf+len, "IRQ: %d\n", dev->irq ); - len += sprintf( buf+len, "IO Address: %#lx-%#lx\n", dev->base_addr, - dev->base_addr+ELMC_IO_EXTENT ); - len += sprintf( buf+len, "Memory: %#lx-%#lx\n", dev->mem_start, - dev->mem_end-1 ); - len += sprintf( buf+len, "Transceiver: %s\n", dev->if_port ? - "External" : "Internal" ); - len += sprintf( buf+len, "Device: %s\n", dev->name ); - len += sprintf( buf+len, "Hardware Address:" ); - for (i = 0; i < 6; i ++ ) { - len += sprintf( buf+len, " %02x", dev->dev_addr[i] ); + if (dev == NULL) + return len; + + len += sprintf(buf + len, "Revision: 0x%x\n", + inb(dev->base_addr + ELMC_REVISION) & 0xf); + len += sprintf(buf + len, "IRQ: %d\n", dev->irq); + len += sprintf(buf + len, "IO Address: %#lx-%#lx\n", dev->base_addr, + dev->base_addr + ELMC_IO_EXTENT); + len += sprintf(buf + len, "Memory: %#lx-%#lx\n", dev->mem_start, + dev->mem_end - 1); + len += sprintf(buf + len, "Transceiver: %s\n", dev->if_port ? + "External" : "Internal"); + len += sprintf(buf + len, "Device: %s\n", dev->name); + len += sprintf(buf + len, "Hardware Address:"); + for (i = 0; i < 6; i++) { + len += sprintf(buf + len, " %02x", dev->dev_addr[i]); } buf[len++] = '\n'; buf[len] = 0; return len; -} /* elmc_getinfo() */ +} /* elmc_getinfo() */ /*****************************************************************/ -__initfunc(int -elmc_probe(struct device *dev)) { - static int slot = 0; - int base_addr = dev ? dev->base_addr : 0; - int irq = dev ? dev->irq : 0; - u_char status = 0; - u_char revision = 0; - int i = 0; - unsigned int size = 0; - - if( MCA_bus == 0 ) { - return ENODEV; - } +__initfunc(int elmc_probe(struct device *dev)) +{ + static int slot = 0; + int base_addr = dev ? dev->base_addr : 0; + int irq = dev ? dev->irq : 0; + u_char status = 0; + u_char revision = 0; + int i = 0; + unsigned int size = 0; + + if (MCA_bus == 0) { + return ENODEV; + } /* search through the slots for the 3c523. */ - slot = mca_find_adapter( ELMC_MCA_ID, 0 ); - while( slot != -1 ) { - status = mca_read_stored_pos( slot, 2 ); + slot = mca_find_adapter(ELMC_MCA_ID, 0); + while (slot != -1) { + status = mca_read_stored_pos(slot, 2); /* - If we're trying to match a specified irq or IO address, - we'll reject a match unless it's what we're looking for. - */ - if( base_addr || irq ) { + If we're trying to match a specified irq or IO address, + we'll reject a match unless it's what we're looking for. + */ + if (base_addr || irq) { /* we're looking for a card at a particular place */ - if( irq && - irq != irq_table[ (status & ELMC_STATUS_IRQ_SELECT) >> 6] - ) { - slot = mca_find_adapter( ELMC_MCA_ID, slot + 1 ); + if (irq && irq != irq_table[(status & ELMC_STATUS_IRQ_SELECT) >> 6]) { + slot = mca_find_adapter(ELMC_MCA_ID, slot + 1); continue; } - - if( base_addr && base_addr != - csr_table[ (status & ELMC_STATUS_CSR_SELECT) >> 1] - ) { - slot = mca_find_adapter( ELMC_MCA_ID, slot + 1 ); + if (base_addr && base_addr != csr_table[(status & ELMC_STATUS_CSR_SELECT) >> 1]) { + slot = mca_find_adapter(ELMC_MCA_ID, slot + 1); continue; } } - /* found what we're looking for... */ break; } /* we didn't find any 3c523 in the slots we checked for */ - if( slot == MCA_NOTFOUND ) { + if (slot == MCA_NOTFOUND) { return ((base_addr || irq) ? ENXIO : ENODEV); } + mca_set_adapter_name(slot, "3Com 3c523 Etherlink/MC"); + mca_set_adapter_procfn(slot, (MCA_ProcFn) elmc_getinfo, dev); + + /* if we get this far, adapter has been found - carry on */ + printk("%s: 3c523 adapter found in slot %d\n", dev->name, slot + 1); + + /* Now we extract configuration info from the card. + The 3c523 provides information in two of the POS registers, but + the second one is only needed if we want to tell the card what IRQ + to use. I suspect that whoever sets the thing up initially would + prefer we don't screw with those things. + + Note that we read the status info when we found the card... + + See 3c523.h for more details. + */ + + /* revision is stored in the first 4 bits of the revision register */ + revision = inb(dev->base_addr + ELMC_REVISION) & 0xf; + + /* figure out our irq */ + dev->irq = irq_table[(status & ELMC_STATUS_IRQ_SELECT) >> 6]; + + /* according to docs, we read the interrupt and write it back to + the IRQ select register, since the POST might not configure the IRQ + properly. */ + switch (dev->irq) { + case 3: + mca_write_pos(slot, 3, 0x04); + break; + case 7: + mca_write_pos(slot, 3, 0x02); + break; + case 9: + mca_write_pos(slot, 3, 0x08); + break; + case 12: + mca_write_pos(slot, 3, 0x01); + break; + } + + /* Our IO address? */ + dev->base_addr = csr_table[(status & ELMC_STATUS_CSR_SELECT) >> 1]; + + request_region(dev->base_addr, ELMC_IO_EXTENT, "3c523"); + + dev->priv = (void *) kmalloc(sizeof(struct priv), GFP_KERNEL); + if (dev->priv == NULL) { + return -ENOMEM; + } + memset((char *) dev->priv, 0, sizeof(struct priv)); + + ((struct priv *) (dev->priv))->slot = slot; + + printk("%s: 3Com 3c523 Rev 0x%x at %#lx\n", dev->name, (int) revision, + dev->base_addr); + + /* Determine if we're using the on-board transceiver (i.e. coax) or + an external one. The information is pretty much useless, but I + guess it's worth brownie points. */ + dev->if_port = (status & ELMC_STATUS_DISABLE_THIN); + + /* The 3c523 has a 24K chunk of memory. The first 16K is the + shared memory, while the last 8K is for the EtherStart BIOS ROM. + Which we don't care much about here. We'll just tell Linux that + we're using 16K. MCA won't permit adress space conflicts caused + by not mapping the other 8K. */ + dev->mem_start = phys_to_virt(shm_table[(status & ELMC_STATUS_MEMORY_SELECT) >> 3]); + + /* We're using MCA, so it's a given that the information about memory + size is correct. The Crynwr drivers do something like this. */ + + elmc_id_reset586(); /* seems like a good idea before checking it... */ + + size = 0x4000; /* check for 16K mem */ + if (!check586(dev, (char *) dev->mem_start, size)) { + printk("%s: memprobe, Can't find memory at 0x%lx!\n", dev->name, + dev->mem_start); + release_region(dev->base_addr, ELMC_IO_EXTENT); + return ENODEV; + } + dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */ + + ((struct priv *) (dev->priv))->base = dev->mem_start + size - 0x01000000; + alloc586(dev); + + elmc_id_reset586(); /* make sure it doesn't generate spurious ints */ + + /* set number of receive-buffs according to memsize */ + ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_16; + + /* dump all the assorted information */ + printk("%s: IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->name, + dev->irq, dev->if_port ? "ex" : "in", + virt_to_phys(dev->mem_start), + virt_to_phys(dev->mem_end - 1)); + + /* The hardware address for the 3c523 is stored in the first six + bytes of the IO address. */ + printk("%s: hardware address ", dev->name); + for (i = 0; i < 6; i++) { + dev->dev_addr[i] = inb(dev->base_addr + i); + printk(" %02x", dev->dev_addr[i]); + } + printk("\n"); + + dev->open = &elmc_open; + dev->stop = &elmc_close; + dev->get_stats = &elmc_get_stats; + dev->hard_start_xmit = &elmc_send_packet; + dev->set_multicast_list = &set_multicast_list; + + ether_setup(dev); - mca_set_adapter_name( slot, "3Com 3c523 Etherlink/MC" ); - mca_set_adapter_procfn( slot, (MCA_ProcFn) elmc_getinfo, dev ); - - /* if we get this far, adapter has been found - carry on */ - printk("%s: 3c523 adapter found in slot %d\n", dev->name, slot + 1); - - /* Now we extract configuration info from the card. - The 3c523 provides information in two of the POS registers, but - the second one is only needed if we want to tell the card what IRQ - to use. I suspect that whoever sets the thing up initially would - prefer we don't screw with those things. - - Note we we read the status info when we found the card... - - See 3c523.h for more details. - */ - - /* revision is stored in the first 4 bits of the revision register */ - revision = inb( dev->base_addr + ELMC_REVISION ) & 0xf; - - /* figure out our irq */ - dev->irq = irq_table[ (status & ELMC_STATUS_IRQ_SELECT) >> 6]; - - /* according to docs, we read the interrupt and write it back to - the IRQ select register, since the POST might not configure the IRQ - properly. */ - switch( dev->irq ) { - case 3: - mca_write_pos( slot, 3, 0x04 ); - break; - case 7: - mca_write_pos( slot, 3, 0x02 ); - break; - case 9: - mca_write_pos( slot, 3, 0x08 ); - break; - case 12: - mca_write_pos( slot, 3, 0x01 ); - break; - } - - /* Our IO address? */ - dev->base_addr = csr_table[ (status & ELMC_STATUS_CSR_SELECT) >> 1]; - - request_region( dev->base_addr, ELMC_IO_EXTENT,"3c523"); - - dev->priv = (void *) kmalloc(sizeof(struct priv),GFP_KERNEL); - if (dev->priv == NULL) { - return -ENOMEM; - } - memset((char *) dev->priv,0,sizeof(struct priv)); - - ((struct priv *) (dev->priv))->slot = slot; - - printk("%s: 3Com 3c523 Rev 0x%x at %#lx\n", dev->name, (int) revision, - dev->base_addr); - - /* Determine if we're using the on-board transceiver (i.e. coax) or - an external one. The information is pretty much useless, but I - guess it's worth brownie points. */ - dev->if_port = (status & ELMC_STATUS_DISABLE_THIN); - - /* The 3c523 has a 24K chunk of memory. The first 16K is the - shared memory, while the last 8K is for the EtherStart BIOS ROM. - Which we don't care much about here. We'll just tell Linux that - we're using 16K. MCA won't permit adress space conflicts caused - by not mapping the other 8K. */ - dev->mem_start = shm_table[ (status & ELMC_STATUS_MEMORY_SELECT) >> 3]; - - /* We're using MCA, so it's a given that the information about memory - size is correct. The Crynwr drivers do something like this. */ - - elmc_id_reset586(); /* seems like a good idea before checking it... */ - - size = 0x4000; /* check for 16K mem */ - if(!check586(dev,(char *) dev->mem_start,size)) { - printk("%s: memprobe, Can't find memory at 0x%lx!\n", dev->name, - dev->mem_start ); - release_region( dev->base_addr, ELMC_IO_EXTENT ); - return ENODEV; - } - dev->mem_end = dev->mem_start + size; /* set mem_end showed by 'ifconfig' */ - - ((struct priv *) (dev->priv))->base = dev->mem_start + size - 0x01000000; - alloc586(dev); - - elmc_id_reset586(); /* make sure it doesn't generate spurious ints */ - - /* set number of receive-buffs according to memsize */ - ((struct priv *) dev->priv)->num_recv_buffs = NUM_RECV_BUFFS_16; - - /* dump all the assorted information */ - printk("%s: IRQ %d, %sternal xcvr, memory %#lx-%#lx.\n", dev->name, - dev->irq, dev->if_port ? "ex" : "in", dev->mem_start, dev->mem_end-1); - - /* The hardware address for the 3c523 is stored in the first six - bytes of the IO address. */ - printk( "%s: hardware address ", dev->name ); - for (i = 0; i < 6; i ++ ) { - dev->dev_addr[i] = inb(dev->base_addr + i); - printk(" %02x", dev->dev_addr[i]); - } - printk( "\n" ); - - dev->open = &elmc_open; - dev->stop = &elmc_close; - dev->get_stats = &elmc_get_stats; - dev->hard_start_xmit = &elmc_send_packet; - dev->set_multicast_list = &set_multicast_list; - - ether_setup(dev); - - dev->tbusy = 0; - dev->interrupt = 0; - dev->start = 0; - - /* note that we haven't actually requested the IRQ from the kernel. - That gets done in elmc_open(). I'm not sure that's such a good idea, - but it works, so I'll go with it. */ - - return 0; + dev->tbusy = 0; + dev->interrupt = 0; + dev->start = 0; + + /* note that we haven't actually requested the IRQ from the kernel. + That gets done in elmc_open(). I'm not sure that's such a good idea, + but it works, so I'll go with it. */ + + return 0; } /********************************************** @@ -590,241 +586,237 @@ elmc_probe(struct device *dev)) { * needs a correct 'allocated' memory */ -static -int -init586(struct device *dev) { - void *ptr; - unsigned long s; - int i,result=0; - struct priv *p = (struct priv *) dev->priv; - volatile struct configure_cmd_struct *cfg_cmd; - volatile struct iasetup_cmd_struct *ias_cmd; - volatile struct tdr_cmd_struct *tdr_cmd; - volatile struct mcsetup_cmd_struct *mc_cmd; - struct dev_mc_list *dmi=dev->mc_list; - int num_addrs=dev->mc_count; - - ptr = (void *) ((char *)p->scb + sizeof(struct scb_struct)); - - cfg_cmd = (struct configure_cmd_struct *)ptr; /* configure-command */ - cfg_cmd->cmd_status = 0; - cfg_cmd->cmd_cmd = CMD_CONFIGURE | CMD_LAST; - cfg_cmd->cmd_link = 0xffff; - - cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ - cfg_cmd->fifo = 0x08; /* fifo-limit (8=tx:32/rx:64) */ - cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ - cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ - cfg_cmd->priority = 0x00; - cfg_cmd->ifs = 0x60; - cfg_cmd->time_low = 0x00; - cfg_cmd->time_high = 0xf2; - cfg_cmd->promisc = 0; - if(dev->flags&(IFF_ALLMULTI|IFF_PROMISC)) - { - cfg_cmd->promisc=1; - dev->flags|=IFF_PROMISC; - } - cfg_cmd->carr_coll = 0x00; - - p->scb->cbl_offset = make16(cfg_cmd); - - p->scb->cmd = CUC_START; /* cmd.-unit start */ - elmc_id_attn586(); - - s = jiffies; /* warning: only active with interrupts on !! */ - while(!(cfg_cmd->cmd_status & STAT_COMPL)) { - if(jiffies-s > 30) break; - } - - if((cfg_cmd->cmd_status & (STAT_OK|STAT_COMPL)) != (STAT_COMPL|STAT_OK)) { - printk("%s (elmc): configure command failed: %x\n",dev->name,cfg_cmd->cmd_status); - return 1; - } - - /* - * individual address setup - */ - ias_cmd = (struct iasetup_cmd_struct *)ptr; - - ias_cmd->cmd_status = 0; - ias_cmd->cmd_cmd = CMD_IASETUP | CMD_LAST; - ias_cmd->cmd_link = 0xffff; - - memcpy((char *)&ias_cmd->iaddr,(char *) dev->dev_addr,ETH_ALEN); - - p->scb->cbl_offset = make16(ias_cmd); - - p->scb->cmd = CUC_START; /* cmd.-unit start */ - elmc_id_attn586(); - - s = jiffies; - while(!(ias_cmd->cmd_status & STAT_COMPL)) { - if(jiffies-s > 30) break; - } - - if((ias_cmd->cmd_status & (STAT_OK|STAT_COMPL)) != (STAT_OK|STAT_COMPL)) { - printk("%s (elmc): individual address setup command failed: %04x\n",dev->name,ias_cmd->cmd_status); - return 1; - } - - /* - * TDR, wire check .. e.g. no resistor e.t.c - */ - tdr_cmd = (struct tdr_cmd_struct *)ptr; - - tdr_cmd->cmd_status = 0; - tdr_cmd->cmd_cmd = CMD_TDR | CMD_LAST; - tdr_cmd->cmd_link = 0xffff; - tdr_cmd->status = 0; - - p->scb->cbl_offset = make16(tdr_cmd); - - p->scb->cmd = CUC_START; /* cmd.-unit start */ - elmc_attn586(); - - s = jiffies; - while(!(tdr_cmd->cmd_status & STAT_COMPL)) { - if(jiffies - s > 30) { - printk("%s: %d Problems while running the TDR.\n",dev->name,__LINE__); - result = 1; - break; - } - } - - if(!result) { - DELAY(2); /* wait for result */ - result = tdr_cmd->status; - - p->scb->cmd = p->scb->status & STAT_MASK; - elmc_id_attn586(); /* ack the interrupts */ - - if(result & TDR_LNK_OK) { - /* empty */ - } else if(result & TDR_XCVR_PRB) { - printk("%s: TDR: Transceiver problem!\n",dev->name); - } else if(result & TDR_ET_OPN) { - printk("%s: TDR: No correct termination %d clocks away.\n",dev->name,result & TDR_TIMEMASK); - } else if(result & TDR_ET_SRT) { - if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ - printk("%s: TDR: Detected a short circuit %d clocks away.\n",dev->name,result & TDR_TIMEMASK); - } else { - printk("%s: TDR: Unknown status %04x\n",dev->name,result); - } - } - - /* - * ack interrupts - */ - p->scb->cmd = p->scb->status & STAT_MASK; - elmc_id_attn586(); - - /* - * alloc nop/xmit-cmds - */ +static int init586(struct device *dev) +{ + void *ptr; + unsigned long s; + int i, result = 0; + struct priv *p = (struct priv *) dev->priv; + volatile struct configure_cmd_struct *cfg_cmd; + volatile struct iasetup_cmd_struct *ias_cmd; + volatile struct tdr_cmd_struct *tdr_cmd; + volatile struct mcsetup_cmd_struct *mc_cmd; + struct dev_mc_list *dmi = dev->mc_list; + int num_addrs = dev->mc_count; + + ptr = (void *) ((char *) p->scb + sizeof(struct scb_struct)); + + cfg_cmd = (struct configure_cmd_struct *) ptr; /* configure-command */ + cfg_cmd->cmd_status = 0; + cfg_cmd->cmd_cmd = CMD_CONFIGURE | CMD_LAST; + cfg_cmd->cmd_link = 0xffff; + + cfg_cmd->byte_cnt = 0x0a; /* number of cfg bytes */ + cfg_cmd->fifo = 0x08; /* fifo-limit (8=tx:32/rx:64) */ + cfg_cmd->sav_bf = 0x40; /* hold or discard bad recv frames (bit 7) */ + cfg_cmd->adr_len = 0x2e; /* addr_len |!src_insert |pre-len |loopback */ + cfg_cmd->priority = 0x00; + cfg_cmd->ifs = 0x60; + cfg_cmd->time_low = 0x00; + cfg_cmd->time_high = 0xf2; + cfg_cmd->promisc = 0; + if (dev->flags & (IFF_ALLMULTI | IFF_PROMISC)) { + cfg_cmd->promisc = 1; + dev->flags |= IFF_PROMISC; + } + cfg_cmd->carr_coll = 0x00; + + p->scb->cbl_offset = make16(cfg_cmd); + + p->scb->cmd = CUC_START; /* cmd.-unit start */ + elmc_id_attn586(); + + s = jiffies; /* warning: only active with interrupts on !! */ + while (!(cfg_cmd->cmd_status & STAT_COMPL)) { + if (jiffies - s > 30) + break; + } + + if ((cfg_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_COMPL | STAT_OK)) { + printk("%s (elmc): configure command failed: %x\n", dev->name, cfg_cmd->cmd_status); + return 1; + } + /* + * individual address setup + */ + ias_cmd = (struct iasetup_cmd_struct *) ptr; + + ias_cmd->cmd_status = 0; + ias_cmd->cmd_cmd = CMD_IASETUP | CMD_LAST; + ias_cmd->cmd_link = 0xffff; + + memcpy((char *) &ias_cmd->iaddr, (char *) dev->dev_addr, ETH_ALEN); + + p->scb->cbl_offset = make16(ias_cmd); + + p->scb->cmd = CUC_START; /* cmd.-unit start */ + elmc_id_attn586(); + + s = jiffies; + while (!(ias_cmd->cmd_status & STAT_COMPL)) { + if (jiffies - s > 30) + break; + } + + if ((ias_cmd->cmd_status & (STAT_OK | STAT_COMPL)) != (STAT_OK | STAT_COMPL)) { + printk("%s (elmc): individual address setup command failed: %04x\n", dev->name, ias_cmd->cmd_status); + return 1; + } + /* + * TDR, wire check .. e.g. no resistor e.t.c + */ + tdr_cmd = (struct tdr_cmd_struct *) ptr; + + tdr_cmd->cmd_status = 0; + tdr_cmd->cmd_cmd = CMD_TDR | CMD_LAST; + tdr_cmd->cmd_link = 0xffff; + tdr_cmd->status = 0; + + p->scb->cbl_offset = make16(tdr_cmd); + + p->scb->cmd = CUC_START; /* cmd.-unit start */ + elmc_attn586(); + + s = jiffies; + while (!(tdr_cmd->cmd_status & STAT_COMPL)) { + if (jiffies - s > 30) { + printk("%s: %d Problems while running the TDR.\n", dev->name, __LINE__); + result = 1; + break; + } + } + + if (!result) { + DELAY(2); /* wait for result */ + result = tdr_cmd->status; + + p->scb->cmd = p->scb->status & STAT_MASK; + elmc_id_attn586(); /* ack the interrupts */ + + if (result & TDR_LNK_OK) { + /* empty */ + } else if (result & TDR_XCVR_PRB) { + printk("%s: TDR: Transceiver problem!\n", dev->name); + } else if (result & TDR_ET_OPN) { + printk("%s: TDR: No correct termination %d clocks away.\n", dev->name, result & TDR_TIMEMASK); + } else if (result & TDR_ET_SRT) { + if (result & TDR_TIMEMASK) /* time == 0 -> strange :-) */ + printk("%s: TDR: Detected a short circuit %d clocks away.\n", dev->name, result & TDR_TIMEMASK); + } else { + printk("%s: TDR: Unknown status %04x\n", dev->name, result); + } + } + /* + * ack interrupts + */ + p->scb->cmd = p->scb->status & STAT_MASK; + elmc_id_attn586(); + + /* + * alloc nop/xmit-cmds + */ #if (NUM_XMIT_BUFFS == 1) - for(i=0;i<2;i++) { - p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; - p->nop_cmds[i]->cmd_cmd = CMD_NOP; - p->nop_cmds[i]->cmd_status = 0; - p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); - ptr = (char *) ptr + sizeof(struct nop_cmd_struct); - } - p->xmit_cmds[0] = (struct transmit_cmd_struct *)ptr; /* transmit cmd/buff 0 */ - ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); + for (i = 0; i < 2; i++) { + p->nop_cmds[i] = (struct nop_cmd_struct *) ptr; + p->nop_cmds[i]->cmd_cmd = CMD_NOP; + p->nop_cmds[i]->cmd_status = 0; + p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); + ptr = (char *) ptr + sizeof(struct nop_cmd_struct); + } + p->xmit_cmds[0] = (struct transmit_cmd_struct *) ptr; /* transmit cmd/buff 0 */ + ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); #else - for(i=0;i<NUM_XMIT_BUFFS;i++) { - p->nop_cmds[i] = (struct nop_cmd_struct *)ptr; - p->nop_cmds[i]->cmd_cmd = CMD_NOP; - p->nop_cmds[i]->cmd_status = 0; - p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); - ptr = (char *) ptr + sizeof(struct nop_cmd_struct); - p->xmit_cmds[i] = (struct transmit_cmd_struct *)ptr; /*transmit cmd/buff 0*/ - ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); - } + for (i = 0; i < NUM_XMIT_BUFFS; i++) { + p->nop_cmds[i] = (struct nop_cmd_struct *) ptr; + p->nop_cmds[i]->cmd_cmd = CMD_NOP; + p->nop_cmds[i]->cmd_status = 0; + p->nop_cmds[i]->cmd_link = make16((p->nop_cmds[i])); + ptr = (char *) ptr + sizeof(struct nop_cmd_struct); + p->xmit_cmds[i] = (struct transmit_cmd_struct *) ptr; /*transmit cmd/buff 0 */ + ptr = (char *) ptr + sizeof(struct transmit_cmd_struct); + } #endif - ptr = alloc_rfa(dev,(void *)ptr); /* init receive-frame-area */ - - /* - * Multicast setup - */ - - if(dev->mc_count) { - /* I don't understand this: do we really need memory after the init? */ - int len = ((char *) p->iscp - (char *) ptr - 8) / 6; - if(len <= 0) { - printk("%s: Ooooops, no memory for MC-Setup!\n",dev->name); - } else { - if(len < num_addrs) { - num_addrs = len; - printk("%s: Sorry, can only apply %d MC-Address(es).\n", - dev->name, num_addrs); - } - mc_cmd = (struct mcsetup_cmd_struct *) ptr; - mc_cmd->cmd_status = 0; - mc_cmd->cmd_cmd = CMD_MCSETUP | CMD_LAST; - mc_cmd->cmd_link = 0xffff; - mc_cmd->mc_cnt = num_addrs * 6; - for(i=0;i<num_addrs;i++) { - memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr,6); - dmi=dmi->next; - } - p->scb->cbl_offset = make16(mc_cmd); - p->scb->cmd = CUC_START; - elmc_id_attn586(); - s = jiffies; - while(!(mc_cmd->cmd_status & STAT_COMPL)) { - if(jiffies - s > 30) - break; - } - if(!(mc_cmd->cmd_status & STAT_COMPL)) { - printk("%s: Can't apply multicast-address-list.\n",dev->name); - } - } - } - - /* - * alloc xmit-buffs / init xmit_cmds - */ - for(i=0;i<NUM_XMIT_BUFFS;i++) { - p->xmit_cbuffs[i] = (char *)ptr; /* char-buffs */ - ptr = (char *) ptr + XMIT_BUFF_SIZE; - p->xmit_buffs[i] = (struct tbd_struct *)ptr; /* TBD */ - ptr = (char *) ptr + sizeof(struct tbd_struct); - if((void *)ptr > (void *)p->iscp) { - printk("%s: not enough shared-mem for your configuration!\n",dev->name); - return 1; - } - memset((char *)(p->xmit_cmds[i]) ,0, sizeof(struct transmit_cmd_struct)); - memset((char *)(p->xmit_buffs[i]),0, sizeof(struct tbd_struct)); - p->xmit_cmds[i]->cmd_status = STAT_COMPL; - p->xmit_cmds[i]->cmd_cmd = CMD_XMIT | CMD_INT; - p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); - p->xmit_buffs[i]->next = 0xffff; - p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); - } - - p->xmit_count = 0; - p->xmit_last = 0; + ptr = alloc_rfa(dev, (void *) ptr); /* init receive-frame-area */ + + /* + * Multicast setup + */ + + if (dev->mc_count) { + /* I don't understand this: do we really need memory after the init? */ + int len = ((char *) p->iscp - (char *) ptr - 8) / 6; + if (len <= 0) { + printk("%s: Ooooops, no memory for MC-Setup!\n", dev->name); + } else { + if (len < num_addrs) { + num_addrs = len; + printk("%s: Sorry, can only apply %d MC-Address(es).\n", + dev->name, num_addrs); + } + mc_cmd = (struct mcsetup_cmd_struct *) ptr; + mc_cmd->cmd_status = 0; + mc_cmd->cmd_cmd = CMD_MCSETUP | CMD_LAST; + mc_cmd->cmd_link = 0xffff; + mc_cmd->mc_cnt = num_addrs * 6; + for (i = 0; i < num_addrs; i++) { + memcpy((char *) mc_cmd->mc_list[i], dmi->dmi_addr, 6); + dmi = dmi->next; + } + p->scb->cbl_offset = make16(mc_cmd); + p->scb->cmd = CUC_START; + elmc_id_attn586(); + s = jiffies; + while (!(mc_cmd->cmd_status & STAT_COMPL)) { + if (jiffies - s > 30) + break; + } + if (!(mc_cmd->cmd_status & STAT_COMPL)) { + printk("%s: Can't apply multicast-address-list.\n", dev->name); + } + } + } + /* + * alloc xmit-buffs / init xmit_cmds + */ + for (i = 0; i < NUM_XMIT_BUFFS; i++) { + p->xmit_cbuffs[i] = (char *) ptr; /* char-buffs */ + ptr = (char *) ptr + XMIT_BUFF_SIZE; + p->xmit_buffs[i] = (struct tbd_struct *) ptr; /* TBD */ + ptr = (char *) ptr + sizeof(struct tbd_struct); + if ((void *) ptr > (void *) p->iscp) { + printk("%s: not enough shared-mem for your configuration!\n", dev->name); + return 1; + } + memset((char *) (p->xmit_cmds[i]), 0, sizeof(struct transmit_cmd_struct)); + memset((char *) (p->xmit_buffs[i]), 0, sizeof(struct tbd_struct)); + p->xmit_cmds[i]->cmd_status = STAT_COMPL; + p->xmit_cmds[i]->cmd_cmd = CMD_XMIT | CMD_INT; + p->xmit_cmds[i]->tbd_offset = make16((p->xmit_buffs[i])); + p->xmit_buffs[i]->next = 0xffff; + p->xmit_buffs[i]->buffer = make24((p->xmit_cbuffs[i])); + } + + p->xmit_count = 0; + p->xmit_last = 0; #ifndef NO_NOPCOMMANDS - p->nop_point = 0; + p->nop_point = 0; #endif - /* - * 'start transmitter' (nop-loop) - */ + /* + * 'start transmitter' (nop-loop) + */ #ifndef NO_NOPCOMMANDS - p->scb->cbl_offset = make16(p->nop_cmds[0]); - p->scb->cmd = CUC_START; - elmc_id_attn586(); - WAIT_4_SCB_CMD(); + p->scb->cbl_offset = make16(p->nop_cmds[0]); + p->scb->cmd = CUC_START; + elmc_id_attn586(); + WAIT_4_SCB_CMD(); #else - p->xmit_cmds[0]->cmd_link = 0xffff; - p->xmit_cmds[0]->cmd_cmd = CMD_XMIT | CMD_LAST | CMD_INT; + p->xmit_cmds[0]->cmd_link = 0xffff; + p->xmit_cmds[0]->cmd_cmd = CMD_XMIT | CMD_LAST | CMD_INT; #endif - return 0; + return 0; } /****************************************************** @@ -832,44 +824,43 @@ init586(struct device *dev) { * It sets up the Receive Frame Area (RFA). */ -static -void* -alloc_rfa(struct device *dev,void *ptr) { - volatile struct rfd_struct *rfd = (struct rfd_struct *)ptr; - volatile struct rbd_struct *rbd; - int i; - struct priv *p = (struct priv *) dev->priv; +static void *alloc_rfa(struct device *dev, void *ptr) +{ + volatile struct rfd_struct *rfd = (struct rfd_struct *) ptr; + volatile struct rbd_struct *rbd; + int i; + struct priv *p = (struct priv *) dev->priv; - memset((char *) rfd,0,sizeof(struct rfd_struct)*p->num_recv_buffs); - p->rfd_first = rfd; + memset((char *) rfd, 0, sizeof(struct rfd_struct) * p->num_recv_buffs); + p->rfd_first = rfd; - for(i = 0; i < p->num_recv_buffs; i++) { - rfd[i].next = make16(rfd + (i+1) % p->num_recv_buffs); - } - rfd[p->num_recv_buffs-1].last = RFD_SUSP; /* RU suspend */ + for (i = 0; i < p->num_recv_buffs; i++) { + rfd[i].next = make16(rfd + (i + 1) % p->num_recv_buffs); + } + rfd[p->num_recv_buffs - 1].last = RFD_SUSP; /* RU suspend */ - ptr = (void *) (rfd + p->num_recv_buffs); + ptr = (void *) (rfd + p->num_recv_buffs); - rbd = (struct rbd_struct *) ptr; - ptr = (void *) (rbd + p->num_recv_buffs); + rbd = (struct rbd_struct *) ptr; + ptr = (void *) (rbd + p->num_recv_buffs); - /* clr descriptors */ - memset((char *) rbd,0,sizeof(struct rbd_struct)*p->num_recv_buffs); + /* clr descriptors */ + memset((char *) rbd, 0, sizeof(struct rbd_struct) * p->num_recv_buffs); - for(i=0;i<p->num_recv_buffs;i++) { - rbd[i].next = make16((rbd + (i+1) % p->num_recv_buffs)); - rbd[i].size = RECV_BUFF_SIZE; - rbd[i].buffer = make24(ptr); - ptr = (char *) ptr + RECV_BUFF_SIZE; - } + for (i = 0; i < p->num_recv_buffs; i++) { + rbd[i].next = make16((rbd + (i + 1) % p->num_recv_buffs)); + rbd[i].size = RECV_BUFF_SIZE; + rbd[i].buffer = make24(ptr); + ptr = (char *) ptr + RECV_BUFF_SIZE; + } - p->rfd_top = p->rfd_first; - p->rfd_last = p->rfd_first + p->num_recv_buffs - 1; + p->rfd_top = p->rfd_first; + p->rfd_last = p->rfd_first + p->num_recv_buffs - 1; - p->scb->rfa_offset = make16(p->rfd_first); - p->rfd_first->rbd_offset = make16(rbd); + p->scb->rfa_offset = make16(p->rfd_first); + p->rfd_first->rbd_offset = make16(rbd); - return ptr; + return ptr; } @@ -877,152 +868,145 @@ alloc_rfa(struct device *dev,void *ptr) { * Interrupt Handler ... */ -static -void -elmc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr) { - struct device *dev = (struct device *) dev_id; - unsigned short stat; - struct priv *p; - - if (dev == NULL) { - printk ("elmc-interrupt: irq %d for unknown device.\n",(int) -(((struct pt_regs *)reg_ptr)->orig_eax+2)); - return; - } else if( !dev->start ) { - /* The 3c523 has this habit of generating interrupts during the - reset. I'm not sure if the ni52 has this same problem, but it's - really annoying if we haven't finished initializing it. I was - hoping all the elmc_id_* commands would disable this, but I - might have missed a few. */ - - elmc_id_attn586(); /* ack inter. and disable any more */ - return; - } else if( !(ELMC_CTRL_INT & inb( dev->base_addr+ELMC_CTRL )) ) { - /* wasn't this device */ - return; - } - - /* reading ELMC_CTRL also clears the INT bit. */ - - p = (struct priv *) dev->priv; - - dev->interrupt = 1; - - while((stat=p->scb->status & STAT_MASK)) { - p->scb->cmd = stat; - elmc_attn586(); /* ack inter. */ - - if(stat & STAT_CX) { - /* command with I-bit set complete */ - elmc_xmt_int(dev); - } - - if(stat & STAT_FR) { - /* received a frame */ - elmc_rcv_int(dev); - } +static void elmc_interrupt(int irq, void *dev_id, struct pt_regs *reg_ptr) +{ + struct device *dev = (struct device *) dev_id; + unsigned short stat; + struct priv *p; + + if (dev == NULL) { + printk("elmc-interrupt: irq %d for unknown device.\n", (int) -(((struct pt_regs *) reg_ptr)->orig_eax + 2)); + return; + } else if (!dev->start) { + /* The 3c523 has this habit of generating interrupts during the + reset. I'm not sure if the ni52 has this same problem, but it's + really annoying if we haven't finished initializing it. I was + hoping all the elmc_id_* commands would disable this, but I + might have missed a few. */ + + elmc_id_attn586(); /* ack inter. and disable any more */ + return; + } else if (!(ELMC_CTRL_INT & inb(dev->base_addr + ELMC_CTRL))) { + /* wasn't this device */ + return; + } + /* reading ELMC_CTRL also clears the INT bit. */ + + p = (struct priv *) dev->priv; + dev->interrupt = 1; + + while ((stat = p->scb->status & STAT_MASK)) + { + p->scb->cmd = stat; + elmc_attn586(); /* ack inter. */ + + if (stat & STAT_CX) { + /* command with I-bit set complete */ + elmc_xmt_int(dev); + } + if (stat & STAT_FR) { + /* received a frame */ + elmc_rcv_int(dev); + } #ifndef NO_NOPCOMMANDS - if(stat & STAT_CNA) { - /* CU went 'not ready' */ - if(dev->start) { - printk("%s: oops! CU has left active state. stat: %04x/%04x.\n",dev->name,(int) stat,(int) p->scb->status); - } - } + if (stat & STAT_CNA) { + /* CU went 'not ready' */ + if (dev->start) { + printk("%s: oops! CU has left active state. stat: %04x/%04x.\n", dev->name, (int) stat, (int) p->scb->status); + } + } #endif - if(stat & STAT_RNR) { - /* RU went 'not ready' */ - - if(p->scb->status & RU_SUSPEND) { - /* special case: RU_SUSPEND */ - - WAIT_4_SCB_CMD(); - p->scb->cmd = RUC_RESUME; - elmc_attn586(); - } else { - printk("%s: Receiver-Unit went 'NOT READY': %04x/%04x.\n",dev->name,(int) stat,(int) p->scb->status); - elmc_rnr_int(dev); - } - } - WAIT_4_SCB_CMD(); /* wait for ack. (elmc_xmt_int can be faster than ack!!) */ - if(p->scb->cmd) { /* timed out? */ - break; - } - } - - dev->interrupt = 0; + if (stat & STAT_RNR) { + /* RU went 'not ready' */ + + if (p->scb->status & RU_SUSPEND) { + /* special case: RU_SUSPEND */ + + WAIT_4_SCB_CMD(); + p->scb->cmd = RUC_RESUME; + elmc_attn586(); + } else { + printk("%s: Receiver-Unit went 'NOT READY': %04x/%04x.\n", dev->name, (int) stat, (int) p->scb->status); + elmc_rnr_int(dev); + } + } + WAIT_4_SCB_CMD(); /* wait for ack. (elmc_xmt_int can be faster than ack!!) */ + if (p->scb->cmd) { /* timed out? */ + break; + } + } + + dev->interrupt = 0; } /******************************************************* * receive-interrupt */ -static -void -elmc_rcv_int(struct device *dev) { - int status; - unsigned short totlen; - struct sk_buff *skb; - struct rbd_struct *rbd; - struct priv *p = (struct priv *) dev->priv; - - for(;(status = p->rfd_top->status) & STAT_COMPL;) { - rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); - - if(status & STAT_OK) /* frame received without error? */ - { - if( (totlen = rbd->status) & RBD_LAST) /* the first and the last buffer? */ - { - totlen &= RBD_MASK; /* length of this frame */ - rbd->status = 0; - skb = (struct sk_buff *) dev_alloc_skb(totlen+2); - if(skb != NULL) { - skb->dev = dev; - skb_reserve(skb,2); /* 16 byte alignment */ - memcpy(skb_put(skb,totlen),(char *) p->base+(unsigned long) rbd->buffer, totlen); - skb->protocol=eth_type_trans(skb,dev); - netif_rx(skb); - p->stats.rx_packets++; - p->stats.rx_bytes+=totlen; - } else { - p->stats.rx_dropped++; - } - } else { - printk("%s: received oversized frame.\n",dev->name); - p->stats.rx_dropped++; - } - } else /* frame !(ok), only with 'save-bad-frames' */ { - printk("%s: oops! rfd-error-status: %04x\n",dev->name,status); - p->stats.rx_errors++; - } - p->rfd_top->status = 0; - p->rfd_top->last = RFD_SUSP; - p->rfd_last->last = 0; /* delete RU_SUSP */ - p->rfd_last = p->rfd_top; - p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */ - } +static void elmc_rcv_int(struct device *dev) +{ + int status; + unsigned short totlen; + struct sk_buff *skb; + struct rbd_struct *rbd; + struct priv *p = (struct priv *) dev->priv; + + for (; (status = p->rfd_top->status) & STAT_COMPL;) { + rbd = (struct rbd_struct *) make32(p->rfd_top->rbd_offset); + + if (status & STAT_OK) { /* frame received without error? */ + if ((totlen = rbd->status) & RBD_LAST) { /* the first and the last buffer? */ + totlen &= RBD_MASK; /* length of this frame */ + rbd->status = 0; + skb = (struct sk_buff *) dev_alloc_skb(totlen + 2); + if (skb != NULL) { + skb->dev = dev; + skb_reserve(skb, 2); /* 16 byte alignment */ + memcpy(skb_put(skb, totlen), (char *) p->base + (unsigned long) rbd->buffer, totlen); + skb->protocol = eth_type_trans(skb, dev); + netif_rx(skb); + p->stats.rx_packets++; + p->stats.rx_bytes += totlen; + } else { + p->stats.rx_dropped++; + } + } else { + printk("%s: received oversized frame.\n", dev->name); + p->stats.rx_dropped++; + } + } else { /* frame !(ok), only with 'save-bad-frames' */ + printk("%s: oops! rfd-error-status: %04x\n", dev->name, status); + p->stats.rx_errors++; + } + p->rfd_top->status = 0; + p->rfd_top->last = RFD_SUSP; + p->rfd_last->last = 0; /* delete RU_SUSP */ + p->rfd_last = p->rfd_top; + p->rfd_top = (struct rfd_struct *) make32(p->rfd_top->next); /* step to next RFD */ + } } /********************************************************** * handle 'Receiver went not ready'. */ -static -void -elmc_rnr_int(struct device *dev) { - struct priv *p = (struct priv *) dev->priv; +static void elmc_rnr_int(struct device *dev) +{ + struct priv *p = (struct priv *) dev->priv; - p->stats.rx_errors++; + p->stats.rx_errors++; - WAIT_4_SCB_CMD(); /* wait for the last cmd */ - p->scb->cmd = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */ - elmc_attn586(); - WAIT_4_SCB_CMD(); /* wait for accept cmd. */ + WAIT_4_SCB_CMD(); /* wait for the last cmd */ + p->scb->cmd = RUC_ABORT; /* usually the RU is in the 'no resource'-state .. abort it now. */ + elmc_attn586(); + WAIT_4_SCB_CMD(); /* wait for accept cmd. */ - alloc_rfa(dev,(char *)p->rfd_first); - startrecv586(dev); /* restart RU */ + alloc_rfa(dev, (char *) p->rfd_first); + startrecv586(dev); /* restart RU */ - printk("%s: Receive-Unit restarted. Status: %04x\n",dev->name,p->scb->status); + printk("%s: Receive-Unit restarted. Status: %04x\n", dev->name, p->scb->status); } @@ -1030,285 +1014,269 @@ elmc_rnr_int(struct device *dev) { * handle xmit - interrupt */ -static -void -elmc_xmt_int(struct device *dev) { - int status; - struct priv *p = (struct priv *) dev->priv; - - status = p->xmit_cmds[p->xmit_last]->cmd_status; - if(!(status & STAT_COMPL)) { - printk("%s: strange .. xmit-int without a 'COMPLETE'\n",dev->name); - } - - if(status & STAT_OK) { - p->stats.tx_packets++; - p->stats.collisions += (status & TCMD_MAXCOLLMASK); - } else { - p->stats.tx_errors++; - if(status & TCMD_LATECOLL) { - printk("%s: late collision detected.\n",dev->name); - p->stats.collisions++; - } else if(status & TCMD_NOCARRIER) { - p->stats.tx_carrier_errors++; - printk("%s: no carrier detected.\n",dev->name); - } else if(status & TCMD_LOSTCTS) { - printk("%s: loss of CTS detected.\n",dev->name); - } else if(status & TCMD_UNDERRUN) { - p->stats.tx_fifo_errors++; - printk("%s: DMA underrun detected.\n",dev->name); - } else if(status & TCMD_MAXCOLL) { - printk("%s: Max. collisions exceeded.\n",dev->name); - p->stats.collisions += 16; - } - } +static void elmc_xmt_int(struct device *dev) +{ + int status; + struct priv *p = (struct priv *) dev->priv; + + status = p->xmit_cmds[p->xmit_last]->cmd_status; + if (!(status & STAT_COMPL)) { + printk("%s: strange .. xmit-int without a 'COMPLETE'\n", dev->name); + } + if (status & STAT_OK) { + p->stats.tx_packets++; + p->stats.collisions += (status & TCMD_MAXCOLLMASK); + } else { + p->stats.tx_errors++; + if (status & TCMD_LATECOLL) { + printk("%s: late collision detected.\n", dev->name); + p->stats.collisions++; + } else if (status & TCMD_NOCARRIER) { + p->stats.tx_carrier_errors++; + printk("%s: no carrier detected.\n", dev->name); + } else if (status & TCMD_LOSTCTS) { + printk("%s: loss of CTS detected.\n", dev->name); + } else if (status & TCMD_UNDERRUN) { + p->stats.tx_fifo_errors++; + printk("%s: DMA underrun detected.\n", dev->name); + } else if (status & TCMD_MAXCOLL) { + printk("%s: Max. collisions exceeded.\n", dev->name); + p->stats.collisions += 16; + } + } #if (NUM_XMIT_BUFFS != 1) - if( (++p->xmit_last) == NUM_XMIT_BUFFS) { - p->xmit_last = 0; - } + if ((++p->xmit_last) == NUM_XMIT_BUFFS) { + p->xmit_last = 0; + } #endif - dev->tbusy = 0; - mark_bh(NET_BH); + dev->tbusy = 0; + mark_bh(NET_BH); } /*********************************************************** * (re)start the receiver */ -static -void -startrecv586(struct device *dev) +static void startrecv586(struct device *dev) { - struct priv *p = (struct priv *) dev->priv; + struct priv *p = (struct priv *) dev->priv; - p->scb->rfa_offset = make16(p->rfd_first); - p->scb->cmd = RUC_START; - elmc_attn586(); /* start cmd. */ - WAIT_4_SCB_CMD(); /* wait for accept cmd. (no timeout!!) */ + p->scb->rfa_offset = make16(p->rfd_first); + p->scb->cmd = RUC_START; + elmc_attn586(); /* start cmd. */ + WAIT_4_SCB_CMD(); /* wait for accept cmd. (no timeout!!) */ } /****************************************************** * send frame */ -static -int -elmc_send_packet(struct sk_buff *skb, struct device *dev) +static int elmc_send_packet(struct sk_buff *skb, struct device *dev) { - int len; + int len; #ifndef NO_NOPCOMMANDS - int next_nop; + int next_nop; #endif - struct priv *p = (struct priv *) dev->priv; - - if(dev->tbusy) { - int tickssofar = jiffies - dev->trans_start; - if (tickssofar < 5) { - return 1; - } + struct priv *p = (struct priv *) dev->priv; - /* COMMAND-UNIT active? */ - if(p->scb->status & CU_ACTIVE) { - dev->tbusy = 0; + if (dev->tbusy) { + int tickssofar = jiffies - dev->trans_start; + if (tickssofar < 5) { + return 1; + } + /* COMMAND-UNIT active? */ + if (p->scb->status & CU_ACTIVE) { + dev->tbusy = 0; #ifdef DEBUG - printk("%s: strange ... timeout with CU active?!?\n",dev->name); - printk("%s: X0: %04x N0: %04x N1: %04x %d\n",dev->name,(int)p->xmit_cmds[0]->cmd_status,(int)p->nop_cmds[0]->cmd_status,(int)p->nop_cmds[1]->cmd_status,(int)p->nop_point); + printk("%s: strange ... timeout with CU active?!?\n", dev->name); + printk("%s: X0: %04x N0: %04x N1: %04x %d\n", dev->name, (int) p->xmit_cmds[0]->cmd_status, (int) p->nop_cmds[0]->cmd_status, (int) p->nop_cmds[1]->cmd_status, (int) p->nop_point); #endif - p->scb->cmd = CUC_ABORT; - elmc_attn586(); - WAIT_4_SCB_CMD(); - p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]); - p->scb->cmd = CUC_START; - elmc_attn586(); - WAIT_4_SCB_CMD(); - dev->trans_start = jiffies; - return 0; - } else { + p->scb->cmd = CUC_ABORT; + elmc_attn586(); + WAIT_4_SCB_CMD(); + p->scb->cbl_offset = make16(p->nop_cmds[p->nop_point]); + p->scb->cmd = CUC_START; + elmc_attn586(); + WAIT_4_SCB_CMD(); + dev->trans_start = jiffies; + return 0; + } else { #ifdef DEBUG - printk("%s: xmitter timed out, try to restart! stat: %04x\n",dev->name,p->scb->status); - printk("%s: command-stats: %04x %04x\n",dev->name,p->xmit_cmds[0]->cmd_status,p->xmit_cmds[1]->cmd_status); + printk("%s: xmitter timed out, try to restart! stat: %04x\n", dev->name, p->scb->status); + printk("%s: command-stats: %04x %04x\n", dev->name, p->xmit_cmds[0]->cmd_status, p->xmit_cmds[1]->cmd_status); #endif - elmc_close(dev); - elmc_open(dev); - } - dev->trans_start = jiffies; - return 0; - } - - if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) { - printk("%s: Transmitter access conflict.\n", dev->name); - } else { - memcpy((char *)p->xmit_cbuffs[p->xmit_count],(char *)(skb->data),skb->len); - len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; + elmc_close(dev); + elmc_open(dev); + } + dev->trans_start = jiffies; + return 0; + } + if (test_and_set_bit(0, (void *) &dev->tbusy) != 0) { + printk("%s: Transmitter access conflict.\n", dev->name); + } else { + memcpy((char *) p->xmit_cbuffs[p->xmit_count], (char *) (skb->data), skb->len); + len = (ETH_ZLEN < skb->len) ? skb->len : ETH_ZLEN; #if (NUM_XMIT_BUFFS == 1) -# ifdef NO_NOPCOMMANDS - p->xmit_buffs[0]->size = TBD_LAST | len; - for(i=0;i<16;i++) { - p->scb->cbl_offset = make16(p->xmit_cmds[0]); - p->scb->cmd = CUC_START; - p->xmit_cmds[0]->cmd_status = 0; - - elmc_attn586(); - dev->trans_start = jiffies; - if(!i) { - dev_kfree_skb(skb); - } - WAIT_4_SCB_CMD(); - if( (p->scb->status & CU_ACTIVE)) /* test it, because CU sometimes doesn't start immediately */ - { - break; - } - if(p->xmit_cmds[0]->cmd_status) { - break; - } - if(i==15) { - printk("%s: Can't start transmit-command.\n",dev->name); - } - } -# else - next_nop = (p->nop_point + 1) & 0x1; - p->xmit_buffs[0]->size = TBD_LAST | len; - - p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link - = make16((p->nop_cmds[next_nop])); - p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; - - p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); - dev->trans_start = jiffies; - p->nop_point = next_nop; - dev_kfree_skb(skb); -# endif +#ifdef NO_NOPCOMMANDS + p->xmit_buffs[0]->size = TBD_LAST | len; + for (i = 0; i < 16; i++) { + p->scb->cbl_offset = make16(p->xmit_cmds[0]); + p->scb->cmd = CUC_START; + p->xmit_cmds[0]->cmd_status = 0; + + elmc_attn586(); + dev->trans_start = jiffies; + if (!i) { + dev_kfree_skb(skb); + } + WAIT_4_SCB_CMD(); + if ((p->scb->status & CU_ACTIVE)) { /* test it, because CU sometimes doesn't start immediately */ + break; + } + if (p->xmit_cmds[0]->cmd_status) { + break; + } + if (i == 15) { + printk("%s: Can't start transmit-command.\n", dev->name); + } + } #else - p->xmit_buffs[p->xmit_count]->size = TBD_LAST | len; - if( (next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS ) { - next_nop = 0; - } - - p->xmit_cmds[p->xmit_count]->cmd_status = 0; - p->xmit_cmds[p->xmit_count]->cmd_link = p->nop_cmds[next_nop]->cmd_link - = make16((p->nop_cmds[next_nop])); - p->nop_cmds[next_nop]->cmd_status = 0; - - p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count])); - dev->trans_start = jiffies; - p->xmit_count = next_nop; - - cli(); - if(p->xmit_count != p->xmit_last) { - dev->tbusy = 0; - } - sti(); - dev_kfree_skb(skb); + next_nop = (p->nop_point + 1) & 0x1; + p->xmit_buffs[0]->size = TBD_LAST | len; + + p->xmit_cmds[0]->cmd_link = p->nop_cmds[next_nop]->cmd_link + = make16((p->nop_cmds[next_nop])); + p->xmit_cmds[0]->cmd_status = p->nop_cmds[next_nop]->cmd_status = 0; + + p->nop_cmds[p->nop_point]->cmd_link = make16((p->xmit_cmds[0])); + dev->trans_start = jiffies; + p->nop_point = next_nop; + dev_kfree_skb(skb); #endif - } - return 0; +#else + p->xmit_buffs[p->xmit_count]->size = TBD_LAST | len; + if ((next_nop = p->xmit_count + 1) == NUM_XMIT_BUFFS) { + next_nop = 0; + } + p->xmit_cmds[p->xmit_count]->cmd_status = 0; + p->xmit_cmds[p->xmit_count]->cmd_link = p->nop_cmds[next_nop]->cmd_link + = make16((p->nop_cmds[next_nop])); + p->nop_cmds[next_nop]->cmd_status = 0; + + p->nop_cmds[p->xmit_count]->cmd_link = make16((p->xmit_cmds[p->xmit_count])); + dev->trans_start = jiffies; + p->xmit_count = next_nop; + + cli(); + if (p->xmit_count != p->xmit_last) { + dev->tbusy = 0; + } + sti(); + dev_kfree_skb(skb); +#endif + } + return 0; } /******************************************* * Someone wanna have the statistics */ -static struct net_device_stats *elmc_get_stats( struct device *dev ) +static struct net_device_stats *elmc_get_stats(struct device *dev) { - struct priv *p = (struct priv *) dev->priv; - unsigned short crc,aln,rsc,ovrn; - - crc = p->scb->crc_errs; /* get error-statistic from the ni82586 */ - p->scb->crc_errs -= crc; - aln = p->scb->aln_errs; - p->scb->aln_errs -= aln; - rsc = p->scb->rsc_errs; - p->scb->rsc_errs -= rsc; - ovrn = p->scb->ovrn_errs; - p->scb->ovrn_errs -= ovrn; - - p->stats.rx_crc_errors += crc; - p->stats.rx_fifo_errors += ovrn; - p->stats.rx_frame_errors += aln; - p->stats.rx_dropped += rsc; - - return &p->stats; + struct priv *p = (struct priv *) dev->priv; + unsigned short crc, aln, rsc, ovrn; + + crc = p->scb->crc_errs; /* get error-statistic from the ni82586 */ + p->scb->crc_errs -= crc; + aln = p->scb->aln_errs; + p->scb->aln_errs -= aln; + rsc = p->scb->rsc_errs; + p->scb->rsc_errs -= rsc; + ovrn = p->scb->ovrn_errs; + p->scb->ovrn_errs -= ovrn; + + p->stats.rx_crc_errors += crc; + p->stats.rx_fifo_errors += ovrn; + p->stats.rx_frame_errors += aln; + p->stats.rx_dropped += rsc; + + return &p->stats; } /******************************************************** * Set MC list .. */ -static -void -set_multicast_list(struct device *dev) { - if(!dev->start) { - /* without a running interface, promiscuous doesn't work */ - return; - } - - dev->start = 0; - alloc586(dev); - init586(dev); - startrecv586(dev); - dev->start = 1; +static void set_multicast_list(struct device *dev) +{ + if (!dev->start) { + /* without a running interface, promiscuous doesn't work */ + return; + } + dev->start = 0; + alloc586(dev); + init586(dev); + startrecv586(dev); + dev->start = 1; } /*************************************************************************/ #ifdef MODULE -static struct device dev_elmc = { - " " /*"3c523"*/, 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, elmc_probe }; -static int irq=0; -static int io=0; +static char devicename[9] = {0,}; + +static struct device dev_elmc = +{ + devicename /*"3c523" */ , 0, 0, 0, 0, 0, 0, 0, 0, 0, NULL, elmc_probe +}; + +static int irq = 0; +static int io = 0; MODULE_PARM(irq, "i"); MODULE_PARM(io, "i"); -int -init_module(void) { +int init_module(void) +{ struct device *dev = &dev_elmc; - dev->base_addr=io; - dev->irq=irq; + dev->base_addr = io; + dev->irq = irq; if (register_netdev(dev) != 0) { return -EIO; } - return 0; } -void -cleanup_module(void) { +void cleanup_module(void) +{ struct device *dev = &dev_elmc; - if (MOD_IN_USE) { - printk("3c523: device busy, remove delayed\n"); - } else { - /* shutdown interrupts on the card */ - elmc_id_reset586(); - - if( dev->irq != 0 ) { - /* this should be done by close, but if we failed to - initialize properly something may have gotten hosed. */ - free_irq( dev->irq, dev ); - dev->irq = 0; - } - - - - if( dev->base_addr != 0 ) { - release_region( dev->base_addr, ELMC_IO_EXTENT ); - dev->base_addr = 0; - } - irq = 0; - io = 0; - - unregister_netdev(dev); + /* shutdown interrupts on the card */ + elmc_id_reset586(); + if (dev->irq != 0) { + /* this should be done by close, but if we failed to + initialize properly something may have gotten hosed. */ + free_irq(dev->irq, dev); + dev->irq = 0; + } + if (dev->base_addr != 0) { + release_region(dev->base_addr, ELMC_IO_EXTENT); + dev->base_addr = 0; + } + irq = 0; + io = 0; + unregister_netdev(dev); - mca_set_adapter_procfn( ((struct priv *) (dev->priv))->slot, - NULL, NULL ); + mca_set_adapter_procfn(((struct priv *) (dev->priv))->slot, + NULL, NULL); - kfree_s(dev->priv,sizeof(struct priv)); - dev->priv=NULL; - } + kfree_s(dev->priv, sizeof(struct priv)); + dev->priv = NULL; } -#endif /* MODULE */ + +#endif /* MODULE */ |