patch-2.1.67 linux/drivers/net/ewrk3.c
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- Lines: 3490
- Date:
Sat Nov 29 10:33:19 1997
- Orig file:
v2.1.66/linux/drivers/net/ewrk3.c
- Orig date:
Mon Nov 3 13:04:26 1997
diff -u --recursive --new-file v2.1.66/linux/drivers/net/ewrk3.c linux/drivers/net/ewrk3.c
@@ -1,140 +1,140 @@
/* ewrk3.c: A DIGITAL EtherWORKS 3 ethernet driver for Linux.
- Written 1994 by David C. Davies.
+ Written 1994 by David C. Davies.
- Copyright 1994 Digital Equipment Corporation.
+ Copyright 1994 Digital Equipment Corporation.
- This software may be used and distributed according to the terms of
- the GNU Public License, incorporated herein by reference.
+ This software may be used and distributed according to the terms of
+ the GNU Public License, incorporated herein by reference.
- This driver is written for the Digital Equipment Corporation series
- of EtherWORKS ethernet cards:
-
- DE203 Turbo (BNC)
- DE204 Turbo (TP)
- DE205 Turbo (TP BNC)
-
- The driver has been tested on a relatively busy network using the DE205
- card and benchmarked with 'ttcp': it transferred 16M of data at 975kB/s
- (7.8Mb/s) to a DECstation 5000/200.
-
- The author may be reached at davies@maniac.ultranet.com.
-
- =========================================================================
- This driver has been written substantially from scratch, although its
- inheritance of style and stack interface from 'depca.c' and in turn from
- Donald Becker's 'lance.c' should be obvious.
-
- The DE203/4/5 boards all use a new proprietary chip in place of the
- LANCE chip used in prior cards (DEPCA, DE100, DE200/1/2, DE210, DE422).
- Use the depca.c driver in the standard distribution for the LANCE based
- cards from DIGITAL; this driver will not work with them.
-
- The DE203/4/5 cards have 2 main modes: shared memory and I/O only. I/O
- only makes all the card accesses through I/O transactions and no high
- (shared) memory is used. This mode provides a >48% performance penalty
- and is deprecated in this driver, although allowed to provide initial
- setup when hardstrapped.
-
- The shared memory mode comes in 3 flavours: 2kB, 32kB and 64kB. There is
- no point in using any mode other than the 2kB mode - their performances
- are virtually identical, although the driver has been tested in the 2kB
- and 32kB modes. I would suggest you uncomment the line:
-
- FORCE_2K_MODE;
-
- to allow the driver to configure the card as a 2kB card at your current
- base address, thus leaving more room to clutter your system box with
- other memory hungry boards.
-
- As many ISA and EISA cards can be supported under this driver as you
- wish, limited primarily by the available IRQ lines, rather than by the
- available I/O addresses (24 ISA, 16 EISA). I have checked different
- configurations of multiple depca cards and ewrk3 cards and have not
- found a problem yet (provided you have at least depca.c v0.38) ...
-
- The board IRQ setting must be at an unused IRQ which is auto-probed
- using Donald Becker's autoprobe routines. All these cards are at
- {5,10,11,15}.
-
- No 16MB memory limitation should exist with this driver as DMA is not
- used and the common memory area is in low memory on the network card (my
- current system has 20MB and I've not had problems yet).
-
- The ability to load this driver as a loadable module has been included
- and used extensively during the driver development (to save those long
- reboot sequences). To utilise this ability, you have to do 8 things:
-
- 0) have a copy of the loadable modules code installed on your system.
- 1) copy ewrk3.c from the /linux/drivers/net directory to your favourite
- temporary directory.
- 2) edit the source code near line 1898 to reflect the I/O address and
- IRQ you're using.
- 3) compile ewrk3.c, but include -DMODULE in the command line to ensure
- that the correct bits are compiled (see end of source code).
- 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a
- kernel with the ewrk3 configuration turned off and reboot.
- 5) insmod ewrk3.o
- [Alan Cox: Changed this so you can insmod ewrk3.o irq=x io=y]
- 6) run the net startup bits for your new eth?? interface manually
- (usually /etc/rc.inet[12] at boot time).
- 7) enjoy!
-
- Note that autoprobing is not allowed in loadable modules - the system is
- already up and running and you're messing with interrupts.
-
- To unload a module, turn off the associated interface
- 'ifconfig eth?? down' then 'rmmod ewrk3'.
-
- Promiscuous mode has been turned off in this driver, but all the
- multicast address bits have been turned on. This improved the send
- performance on a busy network by about 13%.
-
- Ioctl's have now been provided (primarily because I wanted to grab some
- packet size statistics). They are patterned after 'plipconfig.c' from a
- suggestion by Alan Cox. Using these ioctls, you can enable promiscuous
- mode, add/delete multicast addresses, change the hardware address, get
- packet size distribution statistics and muck around with the control and
- status register. I'll add others if and when the need arises.
-
- TO DO:
- ------
-
-
- Revision History
- ----------------
-
- Version Date Description
-
- 0.1 26-aug-94 Initial writing. ALPHA code release.
- 0.11 31-aug-94 Fixed: 2k mode memory base calc.,
- LeMAC version calc.,
- IRQ vector assignments during autoprobe.
- 0.12 31-aug-94 Tested working on LeMAC2 (DE20[345]-AC) card.
- Fixed up MCA hash table algorithm.
- 0.20 4-sep-94 Added IOCTL functionality.
- 0.21 14-sep-94 Added I/O mode.
- 0.21axp 15-sep-94 Special version for ALPHA AXP Linux V1.0.
- 0.22 16-sep-94 Added more IOCTLs & tidied up.
- 0.23 21-sep-94 Added transmit cut through.
- 0.24 31-oct-94 Added uid checks in some ioctls.
- 0.30 1-nov-94 BETA code release.
- 0.31 5-dec-94 Added check/allocate region code.
- 0.32 16-jan-95 Broadcast packet fix.
- 0.33 10-Feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
- 0.40 27-Dec-95 Rationalise MODULE and autoprobe code.
- Rewrite for portability & updated.
- ALPHA support from <jestabro@amt.tay1.dec.com>
- Added verify_area() calls in ewrk3_ioctl() from
- suggestion by <heiko@colossus.escape.de>.
- Add new multicasting code.
- 0.41 20-Jan-96 Fix IRQ set up problem reported by
- <kenneth@bbs.sas.ntu.ac.sg>.
- 0.42 22-Apr-96 Fix alloc_device() bug <jari@markkus2.fimr.fi>
- 0.43 16-Aug-96 Update alloc_device() to conform to de4x5.c
+ This driver is written for the Digital Equipment Corporation series
+ of EtherWORKS ethernet cards:
+
+ DE203 Turbo (BNC)
+ DE204 Turbo (TP)
+ DE205 Turbo (TP BNC)
+
+ The driver has been tested on a relatively busy network using the DE205
+ card and benchmarked with 'ttcp': it transferred 16M of data at 975kB/s
+ (7.8Mb/s) to a DECstation 5000/200.
+
+ The author may be reached at davies@maniac.ultranet.com.
+
+ =========================================================================
+ This driver has been written substantially from scratch, although its
+ inheritance of style and stack interface from 'depca.c' and in turn from
+ Donald Becker's 'lance.c' should be obvious.
+
+ The DE203/4/5 boards all use a new proprietary chip in place of the
+ LANCE chip used in prior cards (DEPCA, DE100, DE200/1/2, DE210, DE422).
+ Use the depca.c driver in the standard distribution for the LANCE based
+ cards from DIGITAL; this driver will not work with them.
+
+ The DE203/4/5 cards have 2 main modes: shared memory and I/O only. I/O
+ only makes all the card accesses through I/O transactions and no high
+ (shared) memory is used. This mode provides a >48% performance penalty
+ and is deprecated in this driver, although allowed to provide initial
+ setup when hardstrapped.
+
+ The shared memory mode comes in 3 flavours: 2kB, 32kB and 64kB. There is
+ no point in using any mode other than the 2kB mode - their performances
+ are virtually identical, although the driver has been tested in the 2kB
+ and 32kB modes. I would suggest you uncomment the line:
+
+ FORCE_2K_MODE;
+
+ to allow the driver to configure the card as a 2kB card at your current
+ base address, thus leaving more room to clutter your system box with
+ other memory hungry boards.
+
+ As many ISA and EISA cards can be supported under this driver as you
+ wish, limited primarily by the available IRQ lines, rather than by the
+ available I/O addresses (24 ISA, 16 EISA). I have checked different
+ configurations of multiple depca cards and ewrk3 cards and have not
+ found a problem yet (provided you have at least depca.c v0.38) ...
+
+ The board IRQ setting must be at an unused IRQ which is auto-probed
+ using Donald Becker's autoprobe routines. All these cards are at
+ {5,10,11,15}.
+
+ No 16MB memory limitation should exist with this driver as DMA is not
+ used and the common memory area is in low memory on the network card (my
+ current system has 20MB and I've not had problems yet).
+
+ The ability to load this driver as a loadable module has been included
+ and used extensively during the driver development (to save those long
+ reboot sequences). To utilise this ability, you have to do 8 things:
+
+ 0) have a copy of the loadable modules code installed on your system.
+ 1) copy ewrk3.c from the /linux/drivers/net directory to your favourite
+ temporary directory.
+ 2) edit the source code near line 1898 to reflect the I/O address and
+ IRQ you're using.
+ 3) compile ewrk3.c, but include -DMODULE in the command line to ensure
+ that the correct bits are compiled (see end of source code).
+ 4) if you are wanting to add a new card, goto 5. Otherwise, recompile a
+ kernel with the ewrk3 configuration turned off and reboot.
+ 5) insmod ewrk3.o
+ [Alan Cox: Changed this so you can insmod ewrk3.o irq=x io=y]
+ 6) run the net startup bits for your new eth?? interface manually
+ (usually /etc/rc.inet[12] at boot time).
+ 7) enjoy!
+
+ Note that autoprobing is not allowed in loadable modules - the system is
+ already up and running and you're messing with interrupts.
+
+ To unload a module, turn off the associated interface
+ 'ifconfig eth?? down' then 'rmmod ewrk3'.
+
+ Promiscuous mode has been turned off in this driver, but all the
+ multicast address bits have been turned on. This improved the send
+ performance on a busy network by about 13%.
+
+ Ioctl's have now been provided (primarily because I wanted to grab some
+ packet size statistics). They are patterned after 'plipconfig.c' from a
+ suggestion by Alan Cox. Using these ioctls, you can enable promiscuous
+ mode, add/delete multicast addresses, change the hardware address, get
+ packet size distribution statistics and muck around with the control and
+ status register. I'll add others if and when the need arises.
+
+ TO DO:
+ ------
+
+
+ Revision History
+ ----------------
+
+ Version Date Description
+
+ 0.1 26-aug-94 Initial writing. ALPHA code release.
+ 0.11 31-aug-94 Fixed: 2k mode memory base calc.,
+ LeMAC version calc.,
+ IRQ vector assignments during autoprobe.
+ 0.12 31-aug-94 Tested working on LeMAC2 (DE20[345]-AC) card.
+ Fixed up MCA hash table algorithm.
+ 0.20 4-sep-94 Added IOCTL functionality.
+ 0.21 14-sep-94 Added I/O mode.
+ 0.21axp 15-sep-94 Special version for ALPHA AXP Linux V1.0.
+ 0.22 16-sep-94 Added more IOCTLs & tidied up.
+ 0.23 21-sep-94 Added transmit cut through.
+ 0.24 31-oct-94 Added uid checks in some ioctls.
+ 0.30 1-nov-94 BETA code release.
+ 0.31 5-dec-94 Added check/allocate region code.
+ 0.32 16-jan-95 Broadcast packet fix.
+ 0.33 10-Feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
+ 0.40 27-Dec-95 Rationalise MODULE and autoprobe code.
+ Rewrite for portability & updated.
+ ALPHA support from <jestabro@amt.tay1.dec.com>
+ Added verify_area() calls in ewrk3_ioctl() from
+ suggestion by <heiko@colossus.escape.de>.
+ Add new multicasting code.
+ 0.41 20-Jan-96 Fix IRQ set up problem reported by
+ <kenneth@bbs.sas.ntu.ac.sg>.
+ 0.42 22-Apr-96 Fix alloc_device() bug <jari@markkus2.fimr.fi>
+ 0.43 16-Aug-96 Update alloc_device() to conform to de4x5.c
- =========================================================================
-*/
+ =========================================================================
+ */
static const char *version = "ewrk3.c:v0.43 96/8/16 davies@maniac.ultranet.com\n";
@@ -172,7 +172,7 @@
static int ewrk3_debug = 1;
#endif
-#define EWRK3_NDA 0xffe0 /* No Device Address */
+#define EWRK3_NDA 0xffe0 /* No Device Address */
#define PROBE_LENGTH 32
#define ETH_PROM_SIG 0xAA5500FFUL
@@ -187,18 +187,18 @@
#endif
/*
-** Sets up the I/O area for the autoprobe.
-*/
-#define EWRK3_IO_BASE 0x100 /* Start address for probe search */
-#define EWRK3_IOP_INC 0x20 /* I/O address increment */
-#define EWRK3_TOTAL_SIZE 0x20 /* required I/O address length */
+ ** Sets up the I/O area for the autoprobe.
+ */
+#define EWRK3_IO_BASE 0x100 /* Start address for probe search */
+#define EWRK3_IOP_INC 0x20 /* I/O address increment */
+#define EWRK3_TOTAL_SIZE 0x20 /* required I/O address length */
#ifndef MAX_NUM_EWRK3S
#define MAX_NUM_EWRK3S 21
#endif
#ifndef EWRK3_EISA_IO_PORTS
-#define EWRK3_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
+#define EWRK3_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
#endif
#ifndef MAX_EISA_SLOTS
@@ -206,22 +206,22 @@
#define EISA_SLOT_INC 0x1000
#endif
-#define CRC_POLYNOMIAL_BE 0x04c11db7UL /* Ethernet CRC, big endian */
-#define CRC_POLYNOMIAL_LE 0xedb88320UL /* Ethernet CRC, little endian */
+#define CRC_POLYNOMIAL_BE 0x04c11db7UL /* Ethernet CRC, big endian */
+#define CRC_POLYNOMIAL_LE 0xedb88320UL /* Ethernet CRC, little endian */
-#define QUEUE_PKT_TIMEOUT (1*HZ) /* Jiffies */
+#define QUEUE_PKT_TIMEOUT (1*HZ) /* Jiffies */
/*
-** EtherWORKS 3 shared memory window sizes
-*/
+ ** EtherWORKS 3 shared memory window sizes
+ */
#define IO_ONLY 0x00
#define SHMEM_2K 0x800
#define SHMEM_32K 0x8000
#define SHMEM_64K 0x10000
/*
-** EtherWORKS 3 IRQ ENABLE/DISABLE
-*/
+ ** EtherWORKS 3 IRQ ENABLE/DISABLE
+ */
#define ENABLE_IRQs { \
icr |= lp->irq_mask;\
outb(icr, EWRK3_ICR); /* Enable the IRQs */\
@@ -234,8 +234,8 @@
}
/*
-** EtherWORKS 3 START/STOP
-*/
+ ** EtherWORKS 3 START/STOP
+ */
#define START_EWRK3 { \
csr = inb(EWRK3_CSR);\
csr &= ~(CSR_TXD|CSR_RXD);\
@@ -248,1662 +248,1674 @@
}
/*
-** The EtherWORKS 3 private structure
-*/
+ ** The EtherWORKS 3 private structure
+ */
#define EWRK3_PKT_STAT_SZ 16
-#define EWRK3_PKT_BIN_SZ 128 /* Should be >=100 unless you
- increase EWRK3_PKT_STAT_SZ */
+#define EWRK3_PKT_BIN_SZ 128 /* Should be >=100 unless you
+ increase EWRK3_PKT_STAT_SZ */
struct ewrk3_private {
- char adapter_name[80]; /* Name exported to /proc/ioports */
- u_long shmem_base; /* Shared memory start address */
- u_long shmem_length; /* Shared memory window length */
- struct net_device_stats stats; /* Public stats */
- struct {
- u32 bins[EWRK3_PKT_STAT_SZ]; /* Private stats counters */
- u32 unicast;
- u32 multicast;
- u32 broadcast;
- u32 excessive_collisions;
- u32 tx_underruns;
- u32 excessive_underruns;
- } pktStats;
- u_char irq_mask; /* Adapter IRQ mask bits */
- u_char mPage; /* Maximum 2kB Page number */
- u_char lemac; /* Chip rev. level */
- u_char hard_strapped; /* Don't allow a full open */
- u_char lock; /* Lock the page register */
- u_char txc; /* Transmit cut through */
- u_char *mctbl; /* Pointer to the multicast table */
+ char adapter_name[80]; /* Name exported to /proc/ioports */
+ u_long shmem_base; /* Shared memory start address */
+ u_long shmem_length; /* Shared memory window length */
+ struct net_device_stats stats; /* Public stats */
+ struct {
+ u32 bins[EWRK3_PKT_STAT_SZ]; /* Private stats counters */
+ u32 unicast;
+ u32 multicast;
+ u32 broadcast;
+ u32 excessive_collisions;
+ u32 tx_underruns;
+ u32 excessive_underruns;
+ } pktStats;
+ u_char irq_mask; /* Adapter IRQ mask bits */
+ u_char mPage; /* Maximum 2kB Page number */
+ u_char lemac; /* Chip rev. level */
+ u_char hard_strapped; /* Don't allow a full open */
+ u_char lock; /* Lock the page register */
+ u_char txc; /* Transmit cut through */
+ u_char *mctbl; /* Pointer to the multicast table */
};
/*
-** Force the EtherWORKS 3 card to be in 2kB MODE
-*/
+ ** Force the EtherWORKS 3 card to be in 2kB MODE
+ */
#define FORCE_2K_MODE { \
shmem_length = SHMEM_2K;\
outb(((mem_start - 0x80000) >> 11), EWRK3_MBR);\
}
/*
-** Public Functions
-*/
-static int ewrk3_open(struct device *dev);
-static int ewrk3_queue_pkt(struct sk_buff *skb, struct device *dev);
-static void ewrk3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
-static int ewrk3_close(struct device *dev);
+ ** Public Functions
+ */
+static int ewrk3_open(struct device *dev);
+static int ewrk3_queue_pkt(struct sk_buff *skb, struct device *dev);
+static void ewrk3_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static int ewrk3_close(struct device *dev);
static struct net_device_stats *ewrk3_get_stats(struct device *dev);
-static void set_multicast_list(struct device *dev);
-static int ewrk3_ioctl(struct device *dev, struct ifreq *rq, int cmd);
+static void set_multicast_list(struct device *dev);
+static int ewrk3_ioctl(struct device *dev, struct ifreq *rq, int cmd);
/*
-** Private functions
-*/
-static int ewrk3_hw_init(struct device *dev, u_long iobase);
-static void ewrk3_init(struct device *dev);
-static int ewrk3_rx(struct device *dev);
-static int ewrk3_tx(struct device *dev);
-
-static void EthwrkSignature(char * name, char *eeprom_image);
-static int DevicePresent(u_long iobase);
-static void SetMulticastFilter(struct device *dev);
-static int EISA_signature(char *name, s32 eisa_id);
-
-static int Read_EEPROM(u_long iobase, u_char eaddr);
-static int Write_EEPROM(short data, u_long iobase, u_char eaddr);
-static u_char get_hw_addr (struct device *dev, u_char *eeprom_image, char chipType);
+ ** Private functions
+ */
+static int ewrk3_hw_init(struct device *dev, u_long iobase);
+static void ewrk3_init(struct device *dev);
+static int ewrk3_rx(struct device *dev);
+static int ewrk3_tx(struct device *dev);
+
+static void EthwrkSignature(char *name, char *eeprom_image);
+static int DevicePresent(u_long iobase);
+static void SetMulticastFilter(struct device *dev);
+static int EISA_signature(char *name, s32 eisa_id);
+
+static int Read_EEPROM(u_long iobase, u_char eaddr);
+static int Write_EEPROM(short data, u_long iobase, u_char eaddr);
+static u_char get_hw_addr(struct device *dev, u_char * eeprom_image, char chipType);
-static void isa_probe(struct device *dev, u_long iobase);
-static void eisa_probe(struct device *dev, u_long iobase);
+static void isa_probe(struct device *dev, u_long iobase);
+static void eisa_probe(struct device *dev, u_long iobase);
static struct device *alloc_device(struct device *dev, u_long iobase);
-static int ewrk3_dev_index(char *s);
-static struct device *insert_device(struct device *dev, u_long iobase, int (*init)(struct device *));
+static int ewrk3_dev_index(char *s);
+static struct device *insert_device(struct device *dev, u_long iobase, int (*init) (struct device *));
#ifdef MODULE
-int init_module(void);
+int init_module(void);
void cleanup_module(void);
static int autoprobed = 1, loading_module = 1;
-# else
-static u_char irq[] = {5,0,10,3,11,9,15,12};
+#else
+static u_char irq[] =
+{5, 0, 10, 3, 11, 9, 15, 12};
static int autoprobed = 0, loading_module = 0;
-#endif /* MODULE */
+#endif /* MODULE */
static char name[EWRK3_STRLEN + 1];
static int num_ewrk3s = 0, num_eth = 0;
/*
-** Miscellaneous defines...
-*/
+ ** Miscellaneous defines...
+ */
#define INIT_EWRK3 {\
outb(EEPROM_INIT, EWRK3_IOPR);\
udelay(1000);\
}
+
-
__initfunc(int ewrk3_probe(struct device *dev))
{
- int tmp = num_ewrk3s, status = -ENODEV;
- u_long iobase = dev->base_addr;
+ int tmp = num_ewrk3s, status = -ENODEV;
+ u_long iobase = dev->base_addr;
- if ((iobase == 0) && loading_module){
- printk("Autoprobing is not supported when loading a module based driver.\n");
- status = -EIO;
- } else { /* First probe for the Ethernet */
- /* Address PROM pattern */
- isa_probe(dev, iobase);
- eisa_probe(dev, iobase);
-
- if ((tmp == num_ewrk3s) && (iobase != 0) && loading_module) {
- printk("%s: ewrk3_probe() cannot find device at 0x%04lx.\n", dev->name,
- iobase);
- }
-
- /*
- ** Walk the device list to check that at least one device
- ** initialised OK
- */
- for (; (dev->priv == NULL) && (dev->next != NULL); dev = dev->next);
-
- if (dev->priv) status = 0;
- if (iobase == 0) autoprobed = 1;
- }
+ if ((iobase == 0) && loading_module) {
+ printk("Autoprobing is not supported when loading a module based driver.\n");
+ status = -EIO;
+ } else { /* First probe for the Ethernet */
+ /* Address PROM pattern */
+ isa_probe(dev, iobase);
+ eisa_probe(dev, iobase);
+
+ if ((tmp == num_ewrk3s) && (iobase != 0) && loading_module) {
+ printk("%s: ewrk3_probe() cannot find device at 0x%04lx.\n", dev->name,
+ iobase);
+ }
+ /*
+ ** Walk the device list to check that at least one device
+ ** initialised OK
+ */
+ for (; (dev->priv == NULL) && (dev->next != NULL); dev = dev->next);
+
+ if (dev->priv)
+ status = 0;
+ if (iobase == 0)
+ autoprobed = 1;
+ }
- return status;
+ return status;
}
__initfunc(static int
-ewrk3_hw_init(struct device *dev, u_long iobase))
+ ewrk3_hw_init(struct device *dev, u_long iobase))
{
- struct ewrk3_private *lp;
- int i, status=0;
- u_long mem_start, shmem_length;
- u_char cr, cmr, icr, nicsr, lemac, hard_strapped = 0;
- u_char eeprom_image[EEPROM_MAX], chksum, eisa_cr = 0;
-
- /*
- ** Stop the EWRK3. Enable the DBR ROM. Disable interrupts and remote boot.
- ** This also disables the EISA_ENABLE bit in the EISA Control Register.
- */
- if (iobase > 0x400) eisa_cr = inb(EISA_CR);
- INIT_EWRK3;
-
- nicsr = inb(EWRK3_CSR);
-
- icr = inb(EWRK3_ICR);
- icr &= 0x70;
- outb(icr, EWRK3_ICR); /* Disable all the IRQs */
-
- if (nicsr == (CSR_TXD|CSR_RXD)) {
-
- /* Check that the EEPROM is alive and well and not living on Pluto... */
- for (chksum=0, i=0; i<EEPROM_MAX; i+=2) {
- union {
- short val;
- char c[2];
- } tmp;
-
- tmp.val = (short)Read_EEPROM(iobase, (i>>1));
- eeprom_image[i] = tmp.c[0];
- eeprom_image[i+1] = tmp.c[1];
- chksum += eeprom_image[i] + eeprom_image[i+1];
- }
-
- if (chksum != 0) { /* Bad EEPROM Data! */
- printk("%s: Device has a bad on-board EEPROM.\n", dev->name);
- status = -ENXIO;
- } else {
- EthwrkSignature(name, eeprom_image);
- if (*name != '\0') { /* found a EWRK3 device */
- dev->base_addr = iobase;
-
- if (iobase > 0x400) {
- outb(eisa_cr, EISA_CR); /* Rewrite the EISA CR */
- }
-
- lemac = eeprom_image[EEPROM_CHIPVER];
- cmr = inb(EWRK3_CMR);
-
- if (((lemac == LeMAC) && ((cmr & CMR_NO_EEPROM) != CMR_NO_EEPROM)) ||
- ((lemac == LeMAC2) && !(cmr & CMR_HS))) {
- printk("%s: %s at %#4lx", dev->name, name, iobase);
- hard_strapped = 1;
- } else if ((iobase&0x0fff)==EWRK3_EISA_IO_PORTS) {
- /* EISA slot address */
- printk("%s: %s at %#4lx (EISA slot %ld)",
- dev->name, name, iobase, ((iobase>>12)&0x0f));
- } else { /* ISA port address */
- printk("%s: %s at %#4lx", dev->name, name, iobase);
- }
-
- if (!status) {
- printk(", h/w address ");
- if (lemac!=LeMAC2) DevicePresent(iobase);/* need after EWRK3_INIT */
- status = get_hw_addr(dev, eeprom_image, lemac);
- for (i = 0; i < ETH_ALEN - 1; i++) { /* get the ethernet addr. */
- printk("%2.2x:", dev->dev_addr[i]);
- }
- printk("%2.2x,\n", dev->dev_addr[i]);
-
- if (status) {
- printk(" which has an EEPROM CRC error.\n");
- status = -ENXIO;
- } else {
- if (lemac == LeMAC2) { /* Special LeMAC2 CMR things */
- cmr &= ~(CMR_RA | CMR_WB | CMR_LINK | CMR_POLARITY | CMR_0WS);
- if (eeprom_image[EEPROM_MISC0] & READ_AHEAD) cmr |= CMR_RA;
- if (eeprom_image[EEPROM_MISC0] & WRITE_BEHIND) cmr |= CMR_WB;
- if (eeprom_image[EEPROM_NETMAN0] & NETMAN_POL) cmr |= CMR_POLARITY;
- if (eeprom_image[EEPROM_NETMAN0] & NETMAN_LINK) cmr |= CMR_LINK;
- if (eeprom_image[EEPROM_MISC0] & _0WS_ENA) cmr |= CMR_0WS;
- }
- if (eeprom_image[EEPROM_SETUP] & SETUP_DRAM) cmr |= CMR_DRAM;
- outb(cmr, EWRK3_CMR);
-
- cr = inb(EWRK3_CR); /* Set up the Control Register */
- cr |= eeprom_image[EEPROM_SETUP] & SETUP_APD;
- if (cr & SETUP_APD) cr |= eeprom_image[EEPROM_SETUP] & SETUP_PS;
- cr |= eeprom_image[EEPROM_MISC0] & FAST_BUS;
- cr |= eeprom_image[EEPROM_MISC0] & ENA_16;
- outb(cr, EWRK3_CR);
-
- /*
- ** Determine the base address and window length for the EWRK3
- ** RAM from the memory base register.
- */
- mem_start = inb(EWRK3_MBR);
- shmem_length = 0;
- if (mem_start != 0) {
- if ((mem_start >= 0x0a) && (mem_start <= 0x0f)) {
- mem_start *= SHMEM_64K;
- shmem_length = SHMEM_64K;
- } else if ((mem_start >= 0x14) && (mem_start <= 0x1f)) {
- mem_start *= SHMEM_32K;
- shmem_length = SHMEM_32K;
- } else if ((mem_start >= 0x40) && (mem_start <= 0xff)) {
- mem_start = mem_start * SHMEM_2K + 0x80000;
- shmem_length = SHMEM_2K;
- } else {
- status = -ENXIO;
- }
- }
+ struct ewrk3_private *lp;
+ int i, status = 0;
+ u_long mem_start, shmem_length;
+ u_char cr, cmr, icr, nicsr, lemac, hard_strapped = 0;
+ u_char eeprom_image[EEPROM_MAX], chksum, eisa_cr = 0;
- /*
- ** See the top of this source code for comments about
- ** uncommenting this line.
- */
-/* FORCE_2K_MODE;*/
-
- if (!status) {
- if (hard_strapped) {
- printk(" is hard strapped.\n");
- } else if (mem_start) {
- printk(" has a %dk RAM window", (int)(shmem_length >> 10));
- printk(" at 0x%.5lx", mem_start);
- } else {
- printk(" is in I/O only mode");
- }
-
- /* private area & initialise */
- dev->priv = (void *) kmalloc(sizeof(struct ewrk3_private),
- GFP_KERNEL);
- if (dev->priv == NULL) {
- return -ENOMEM;
- }
- lp = (struct ewrk3_private *)dev->priv;
- memset(dev->priv, 0, sizeof(struct ewrk3_private));
- lp->shmem_base = mem_start;
- lp->shmem_length = shmem_length;
- lp->lemac = lemac;
- lp->hard_strapped = hard_strapped;
-
- lp->mPage = 64;
- if (cmr & CMR_DRAM) lp->mPage <<= 1 ;/* 2 DRAMS on module */
-
- sprintf(lp->adapter_name,"%s (%s)", name, dev->name);
- request_region(iobase, EWRK3_TOTAL_SIZE, lp->adapter_name);
-
- lp->irq_mask = ICR_TNEM|ICR_TXDM|ICR_RNEM|ICR_RXDM;
+ /*
+ ** Stop the EWRK3. Enable the DBR ROM. Disable interrupts and remote boot.
+ ** This also disables the EISA_ENABLE bit in the EISA Control Register.
+ */
+ if (iobase > 0x400)
+ eisa_cr = inb(EISA_CR);
+ INIT_EWRK3;
+
+ nicsr = inb(EWRK3_CSR);
+
+ icr = inb(EWRK3_ICR);
+ icr &= 0x70;
+ outb(icr, EWRK3_ICR); /* Disable all the IRQs */
+
+ if (nicsr == (CSR_TXD | CSR_RXD)) {
+
+ /* Check that the EEPROM is alive and well and not living on Pluto... */
+ for (chksum = 0, i = 0; i < EEPROM_MAX; i += 2) {
+ union {
+ short val;
+ char c[2];
+ } tmp;
+
+ tmp.val = (short) Read_EEPROM(iobase, (i >> 1));
+ eeprom_image[i] = tmp.c[0];
+ eeprom_image[i + 1] = tmp.c[1];
+ chksum += eeprom_image[i] + eeprom_image[i + 1];
+ }
- if (!hard_strapped) {
- /*
- ** Enable EWRK3 board interrupts for autoprobing
- */
- icr |= ICR_IE; /* Enable interrupts */
- outb(icr, EWRK3_ICR);
-
- /* The DMA channel may be passed in on this parameter. */
- dev->dma = 0;
-
- /* To auto-IRQ we enable the initialization-done and DMA err,
- interrupts. For now we will always get a DMA error. */
- if (dev->irq < 2) {
+ if (chksum != 0) { /* Bad EEPROM Data! */
+ printk("%s: Device has a bad on-board EEPROM.\n", dev->name);
+ status = -ENXIO;
+ } else {
+ EthwrkSignature(name, eeprom_image);
+ if (*name != '\0') { /* found a EWRK3 device */
+ dev->base_addr = iobase;
+
+ if (iobase > 0x400) {
+ outb(eisa_cr, EISA_CR); /* Rewrite the EISA CR */
+ }
+ lemac = eeprom_image[EEPROM_CHIPVER];
+ cmr = inb(EWRK3_CMR);
+
+ if (((lemac == LeMAC) && ((cmr & CMR_NO_EEPROM) != CMR_NO_EEPROM)) ||
+ ((lemac == LeMAC2) && !(cmr & CMR_HS))) {
+ printk("%s: %s at %#4lx", dev->name, name, iobase);
+ hard_strapped = 1;
+ } else if ((iobase & 0x0fff) == EWRK3_EISA_IO_PORTS) {
+ /* EISA slot address */
+ printk("%s: %s at %#4lx (EISA slot %ld)",
+ dev->name, name, iobase, ((iobase >> 12) & 0x0f));
+ } else { /* ISA port address */
+ printk("%s: %s at %#4lx", dev->name, name, iobase);
+ }
+
+ if (!status) {
+ printk(", h/w address ");
+ if (lemac != LeMAC2)
+ DevicePresent(iobase); /* need after EWRK3_INIT */
+ status = get_hw_addr(dev, eeprom_image, lemac);
+ for (i = 0; i < ETH_ALEN - 1; i++) { /* get the ethernet addr. */
+ printk("%2.2x:", dev->dev_addr[i]);
+ }
+ printk("%2.2x,\n", dev->dev_addr[i]);
+
+ if (status) {
+ printk(" which has an EEPROM CRC error.\n");
+ status = -ENXIO;
+ } else {
+ if (lemac == LeMAC2) { /* Special LeMAC2 CMR things */
+ cmr &= ~(CMR_RA | CMR_WB | CMR_LINK | CMR_POLARITY | CMR_0WS);
+ if (eeprom_image[EEPROM_MISC0] & READ_AHEAD)
+ cmr |= CMR_RA;
+ if (eeprom_image[EEPROM_MISC0] & WRITE_BEHIND)
+ cmr |= CMR_WB;
+ if (eeprom_image[EEPROM_NETMAN0] & NETMAN_POL)
+ cmr |= CMR_POLARITY;
+ if (eeprom_image[EEPROM_NETMAN0] & NETMAN_LINK)
+ cmr |= CMR_LINK;
+ if (eeprom_image[EEPROM_MISC0] & _0WS_ENA)
+ cmr |= CMR_0WS;
+ }
+ if (eeprom_image[EEPROM_SETUP] & SETUP_DRAM)
+ cmr |= CMR_DRAM;
+ outb(cmr, EWRK3_CMR);
+
+ cr = inb(EWRK3_CR); /* Set up the Control Register */
+ cr |= eeprom_image[EEPROM_SETUP] & SETUP_APD;
+ if (cr & SETUP_APD)
+ cr |= eeprom_image[EEPROM_SETUP] & SETUP_PS;
+ cr |= eeprom_image[EEPROM_MISC0] & FAST_BUS;
+ cr |= eeprom_image[EEPROM_MISC0] & ENA_16;
+ outb(cr, EWRK3_CR);
+
+ /*
+ ** Determine the base address and window length for the EWRK3
+ ** RAM from the memory base register.
+ */
+ mem_start = inb(EWRK3_MBR);
+ shmem_length = 0;
+ if (mem_start != 0) {
+ if ((mem_start >= 0x0a) && (mem_start <= 0x0f)) {
+ mem_start *= SHMEM_64K;
+ shmem_length = SHMEM_64K;
+ } else if ((mem_start >= 0x14) && (mem_start <= 0x1f)) {
+ mem_start *= SHMEM_32K;
+ shmem_length = SHMEM_32K;
+ } else if ((mem_start >= 0x40) && (mem_start <= 0xff)) {
+ mem_start = mem_start * SHMEM_2K + 0x80000;
+ shmem_length = SHMEM_2K;
+ } else {
+ status = -ENXIO;
+ }
+ }
+ /*
+ ** See the top of this source code for comments about
+ ** uncommenting this line.
+ */
+/* FORCE_2K_MODE; */
+
+ if (!status) {
+ if (hard_strapped) {
+ printk(" is hard strapped.\n");
+ } else if (mem_start) {
+ printk(" has a %dk RAM window", (int) (shmem_length >> 10));
+ printk(" at 0x%.5lx", mem_start);
+ } else {
+ printk(" is in I/O only mode");
+ }
+
+ /* private area & initialise */
+ dev->priv = (void *) kmalloc(sizeof(struct ewrk3_private),
+ GFP_KERNEL);
+ if (dev->priv == NULL) {
+ return -ENOMEM;
+ }
+ lp = (struct ewrk3_private *) dev->priv;
+ memset(dev->priv, 0, sizeof(struct ewrk3_private));
+ lp->shmem_base = mem_start;
+ lp->shmem_length = shmem_length;
+ lp->lemac = lemac;
+ lp->hard_strapped = hard_strapped;
+
+ lp->mPage = 64;
+ if (cmr & CMR_DRAM)
+ lp->mPage <<= 1; /* 2 DRAMS on module */
+
+ sprintf(lp->adapter_name, "%s (%s)", name, dev->name);
+ request_region(iobase, EWRK3_TOTAL_SIZE, lp->adapter_name);
+
+ lp->irq_mask = ICR_TNEM | ICR_TXDM | ICR_RNEM | ICR_RXDM;
+
+ if (!hard_strapped) {
+ /*
+ ** Enable EWRK3 board interrupts for autoprobing
+ */
+ icr |= ICR_IE; /* Enable interrupts */
+ outb(icr, EWRK3_ICR);
+
+ /* The DMA channel may be passed in on this parameter. */
+ dev->dma = 0;
+
+ /* To auto-IRQ we enable the initialization-done and DMA err,
+ interrupts. For now we will always get a DMA error. */
+ if (dev->irq < 2) {
#ifndef MODULE
- u_char irqnum;
+ u_char irqnum;
- autoirq_setup(0);
+ autoirq_setup(0);
- /*
- ** Trigger a TNE interrupt.
- */
- icr |=ICR_TNEM;
- outb(1,EWRK3_TDQ); /* Write to the TX done queue */
- outb(icr, EWRK3_ICR); /* Unmask the TXD interrupt */
-
- irqnum = irq[((icr & IRQ_SEL) >> 4)];
-
- dev->irq = autoirq_report(1);
- if ((dev->irq) && (irqnum == dev->irq)) {
- printk(" and uses IRQ%d.\n", dev->irq);
- } else {
- if (!dev->irq) {
- printk(" and failed to detect IRQ line.\n");
- } else if ((irqnum == 1) && (lemac == LeMAC2)) {
- printk(" and an illegal IRQ line detected.\n");
- } else {
- printk(", but incorrect IRQ line detected.\n");
- }
- status = -ENXIO;
- }
+ /*
+ ** Trigger a TNE interrupt.
+ */
+ icr |= ICR_TNEM;
+ outb(1, EWRK3_TDQ); /* Write to the TX done queue */
+ outb(icr, EWRK3_ICR); /* Unmask the TXD interrupt */
+
+ irqnum = irq[((icr & IRQ_SEL) >> 4)];
+
+ dev->irq = autoirq_report(1);
+ if ((dev->irq) && (irqnum == dev->irq)) {
+ printk(" and uses IRQ%d.\n", dev->irq);
+ } else {
+ if (!dev->irq) {
+ printk(" and failed to detect IRQ line.\n");
+ } else if ((irqnum == 1) && (lemac == LeMAC2)) {
+ printk(" and an illegal IRQ line detected.\n");
+ } else {
+ printk(", but incorrect IRQ line detected.\n");
+ }
+ status = -ENXIO;
+ }
+
+ DISABLE_IRQs; /* Mask all interrupts */
+
+#endif /* MODULE */
+ } else {
+ printk(" and requires IRQ%d.\n", dev->irq);
+ }
+ }
+ if (status)
+ release_region(iobase, EWRK3_TOTAL_SIZE);
+ } else {
+ status = -ENXIO;
+ }
+ }
+ }
+ } else {
+ status = -ENXIO;
+ }
+ }
- DISABLE_IRQs; /* Mask all interrupts */
+ if (!status) {
+ if (ewrk3_debug > 1) {
+ printk(version);
+ }
+ /* The EWRK3-specific entries in the device structure. */
+ dev->open = &ewrk3_open;
+ dev->hard_start_xmit = &ewrk3_queue_pkt;
+ dev->stop = &ewrk3_close;
+ dev->get_stats = &ewrk3_get_stats;
+ dev->set_multicast_list = &set_multicast_list;
+ dev->do_ioctl = &ewrk3_ioctl;
-#endif /* MODULE */
- } else {
- printk(" and requires IRQ%d.\n", dev->irq);
+ dev->mem_start = 0;
+
+ /* Fill in the generic field of the device structure. */
+ ether_setup(dev);
}
- }
- if (status) release_region(iobase, EWRK3_TOTAL_SIZE);
- } else {
- status = -ENXIO;
- }
- }
- }
- } else {
- status = -ENXIO;
- }
- }
-
- if (!status) {
- if (ewrk3_debug > 1) {
- printk(version);
- }
-
- /* The EWRK3-specific entries in the device structure. */
- dev->open = &ewrk3_open;
- dev->hard_start_xmit = &ewrk3_queue_pkt;
- dev->stop = &ewrk3_close;
- dev->get_stats = &ewrk3_get_stats;
- dev->set_multicast_list = &set_multicast_list;
- dev->do_ioctl = &ewrk3_ioctl;
-
- dev->mem_start = 0;
-
- /* Fill in the generic field of the device structure. */
- ether_setup(dev);
- }
- } else {
- status = -ENXIO;
- }
+ } else {
+ status = -ENXIO;
+ }
- return status;
+ return status;
}
-
-static int
-ewrk3_open(struct device *dev)
+
+static int ewrk3_open(struct device *dev)
{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- int i, status = 0;
- u_char icr, csr;
-
- /*
- ** Stop the TX and RX...
- */
- STOP_EWRK3;
-
- if (!lp->hard_strapped) {
- if (request_irq(dev->irq, (void *)ewrk3_interrupt, 0, "ewrk3", dev)) {
- printk("ewrk3_open(): Requested IRQ%d is busy\n",dev->irq);
- status = -EAGAIN;
- } else {
-
- /*
- ** Re-initialize the EWRK3...
- */
- ewrk3_init(dev);
-
- if (ewrk3_debug > 1){
- printk("%s: ewrk3 open with irq %d\n",dev->name,dev->irq);
- printk(" physical address: ");
- for (i=0;i<5;i++){
- printk("%2.2x:",(u_char)dev->dev_addr[i]);
- }
- printk("%2.2x\n",(u_char)dev->dev_addr[i]);
- if (lp->shmem_length == 0) {
- printk(" no shared memory, I/O only mode\n");
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ int i, status = 0;
+ u_char icr, csr;
+
+ /*
+ ** Stop the TX and RX...
+ */
+ STOP_EWRK3;
+
+ if (!lp->hard_strapped) {
+ if (request_irq(dev->irq, (void *) ewrk3_interrupt, 0, "ewrk3", dev)) {
+ printk("ewrk3_open(): Requested IRQ%d is busy\n", dev->irq);
+ status = -EAGAIN;
+ } else {
+
+ /*
+ ** Re-initialize the EWRK3...
+ */
+ ewrk3_init(dev);
+
+ if (ewrk3_debug > 1) {
+ printk("%s: ewrk3 open with irq %d\n", dev->name, dev->irq);
+ printk(" physical address: ");
+ for (i = 0; i < 5; i++) {
+ printk("%2.2x:", (u_char) dev->dev_addr[i]);
+ }
+ printk("%2.2x\n", (u_char) dev->dev_addr[i]);
+ if (lp->shmem_length == 0) {
+ printk(" no shared memory, I/O only mode\n");
+ } else {
+ printk(" start of shared memory: 0x%08lx\n", lp->shmem_base);
+ printk(" window length: 0x%04lx\n", lp->shmem_length);
+ }
+ printk(" # of DRAMS: %d\n", ((inb(EWRK3_CMR) & 0x02) ? 2 : 1));
+ printk(" csr: 0x%02x\n", inb(EWRK3_CSR));
+ printk(" cr: 0x%02x\n", inb(EWRK3_CR));
+ printk(" icr: 0x%02x\n", inb(EWRK3_ICR));
+ printk(" cmr: 0x%02x\n", inb(EWRK3_CMR));
+ printk(" fmqc: 0x%02x\n", inb(EWRK3_FMQC));
+ }
+ dev->tbusy = 0;
+ dev->start = 1;
+ dev->interrupt = UNMASK_INTERRUPTS;
+
+ /*
+ ** Unmask EWRK3 board interrupts
+ */
+ icr = inb(EWRK3_ICR);
+ ENABLE_IRQs;
+
+ }
} else {
- printk(" start of shared memory: 0x%08lx\n",lp->shmem_base);
- printk(" window length: 0x%04lx\n",lp->shmem_length);
+ dev->start = 0;
+ dev->tbusy = 1;
+ printk("%s: ewrk3 available for hard strapped set up only.\n", dev->name);
+ printk(" Run the 'ewrk3setup' utility or remove the hard straps.\n");
}
- printk(" # of DRAMS: %d\n",((inb(EWRK3_CMR) & 0x02) ? 2 : 1));
- printk(" csr: 0x%02x\n", inb(EWRK3_CSR));
- printk(" cr: 0x%02x\n", inb(EWRK3_CR));
- printk(" icr: 0x%02x\n", inb(EWRK3_ICR));
- printk(" cmr: 0x%02x\n", inb(EWRK3_CMR));
- printk(" fmqc: 0x%02x\n", inb(EWRK3_FMQC));
- }
-
- dev->tbusy = 0;
- dev->start = 1;
- dev->interrupt = UNMASK_INTERRUPTS;
-
- /*
- ** Unmask EWRK3 board interrupts
- */
- icr = inb(EWRK3_ICR);
- ENABLE_IRQs;
-
- }
- } else {
- dev->start = 0;
- dev->tbusy = 1;
- printk("%s: ewrk3 available for hard strapped set up only.\n", dev->name);
- printk(" Run the 'ewrk3setup' utility or remove the hard straps.\n");
- }
-
- MOD_INC_USE_COUNT;
-
- return status;
-}
-
-/*
-** Initialize the EtherWORKS 3 operating conditions
-*/
-static void
-ewrk3_init(struct device *dev)
-{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_char csr, page;
- u_long iobase = dev->base_addr;
-
- /*
- ** Enable any multicasts
- */
- set_multicast_list(dev);
-
- /*
- ** Clean out any remaining entries in all the queues here
- */
- while (inb(EWRK3_TQ));
- while (inb(EWRK3_TDQ));
- while (inb(EWRK3_RQ));
- while (inb(EWRK3_FMQ));
-
- /*
- ** Write a clean free memory queue
- */
- for (page=1;page<lp->mPage;page++) { /* Write the free page numbers */
- outb(page, EWRK3_FMQ); /* to the Free Memory Queue */
- }
-
- lp->lock = 0; /* Ensure there are no locks */
-
- START_EWRK3; /* Enable the TX and/or RX */
-}
-
-/*
-** Writes a socket buffer to the free page queue
-*/
-static int
-ewrk3_queue_pkt(struct sk_buff *skb, struct device *dev)
-{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- int status = 0;
- u_char icr, csr;
-
- /* Transmitter timeout, serious problems. */
- if (dev->tbusy || lp->lock) {
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < QUEUE_PKT_TIMEOUT) {
- status = -1;
- } else if (!lp->hard_strapped) {
- printk("%s: transmit timed/locked out, status %04x, resetting.\n",
- dev->name, inb(EWRK3_CSR));
-
- /*
- ** Mask all board interrupts
- */
- DISABLE_IRQs;
-
- /*
- ** Stop the TX and RX...
- */
- STOP_EWRK3;
-
- ewrk3_init(dev);
-
- /*
- ** Unmask EWRK3 board interrupts
- */
- ENABLE_IRQs;
-
- dev->tbusy=0;
- dev->trans_start = jiffies;
- }
- } else if (skb == NULL) {
- dev_tint(dev);
- } else if (skb->len > 0) {
-
- /*
- ** 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)
- printk("%s: Transmitter access conflict.\n", dev->name);
-
- DISABLE_IRQs; /* So that the page # remains correct */
-
- /*
- ** Get a free page from the FMQ when resources are available
- */
- if (inb(EWRK3_FMQC) > 0) {
- u_long buf = 0;
- u_char page;
- if ((page = inb(EWRK3_FMQ)) < lp->mPage) {
+ MOD_INC_USE_COUNT;
+
+ return status;
+}
+
+/*
+ ** Initialize the EtherWORKS 3 operating conditions
+ */
+static void ewrk3_init(struct device *dev)
+{
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_char csr, page;
+ u_long iobase = dev->base_addr;
+
/*
- ** Set up shared memory window and pointer into the window
- */
- while (test_and_set_bit(0, (void *)&lp->lock) != 0); /* Wait for lock to free */
- if (lp->shmem_length == IO_ONLY) {
- outb(page, EWRK3_IOPR);
- } else if (lp->shmem_length == SHMEM_2K) {
- buf = lp->shmem_base;
- outb(page, EWRK3_MPR);
- } else if (lp->shmem_length == SHMEM_32K) {
- buf = ((((short)page << 11) & 0x7800) + lp->shmem_base);
- outb((page >> 4), EWRK3_MPR);
- } else if (lp->shmem_length == SHMEM_64K) {
- buf = ((((short)page << 11) & 0xf800) + lp->shmem_base);
- outb((page >> 5), EWRK3_MPR);
- } else {
- status = -1;
- printk("%s: Oops - your private data area is hosed!\n",dev->name);
+ ** Enable any multicasts
+ */
+ set_multicast_list(dev);
+
+ /*
+ ** Clean out any remaining entries in all the queues here
+ */
+ while (inb(EWRK3_TQ));
+ while (inb(EWRK3_TDQ));
+ while (inb(EWRK3_RQ));
+ while (inb(EWRK3_FMQ));
+
+ /*
+ ** Write a clean free memory queue
+ */
+ for (page = 1; page < lp->mPage; page++) { /* Write the free page numbers */
+ outb(page, EWRK3_FMQ); /* to the Free Memory Queue */
}
- if (!status) {
+ lp->lock = 0; /* Ensure there are no locks */
- /*
- ** Set up the buffer control structures and copy the data from
- ** the socket buffer to the shared memory .
- */
-
- if (lp->shmem_length == IO_ONLY) {
- int i;
- u_char *p = skb->data;
-
- outb((char)(TCR_QMODE | TCR_PAD | TCR_IFC), EWRK3_DATA);
- outb((char)(skb->len & 0xff), EWRK3_DATA);
- outb((char)((skb->len >> 8) & 0xff), EWRK3_DATA);
- outb((char)0x04, EWRK3_DATA);
- for (i=0; i<skb->len; i++) {
- outb(*p++, EWRK3_DATA);
- }
- outb(page, EWRK3_TQ); /* Start sending pkt */
- } else {
- writeb((char)(TCR_QMODE|TCR_PAD|TCR_IFC), (char *)buf);/* ctrl byte*/
- buf+=1;
- writeb((char)(skb->len & 0xff), (char *)buf);/* length (16 bit xfer)*/
- buf+=1;
- if (lp->txc) {
- writeb((char)(((skb->len >> 8) & 0xff) | XCT), (char *)buf);
- buf+=1;
- writeb(0x04, (char *)buf); /* index byte */
- buf+=1;
- writeb(0x00, (char *)(buf + skb->len)); /* Write the XCT flag */
- memcpy_toio(buf, skb->data, PRELOAD);/* Write PRELOAD bytes*/
- outb(page, EWRK3_TQ); /* Start sending pkt */
- memcpy_toio(buf+PRELOAD, skb->data+PRELOAD, skb->len-PRELOAD);
- writeb(0xff, (char *)(buf + skb->len)); /* Write the XCT flag */
- } else {
- writeb((char)((skb->len >> 8) & 0xff), (char *)buf);
- buf+=1;
- writeb(0x04, (char *)buf); /* index byte */
- buf+=1;
- memcpy_toio((char *)buf, skb->data, skb->len);/* Write data bytes */
- outb(page, EWRK3_TQ); /* Start sending pkt */
- }
- }
-
- dev->trans_start = jiffies;
- dev_kfree_skb (skb, FREE_WRITE);
-
- } else { /* return unused page to the free memory queue */
- outb(page, EWRK3_FMQ);
- }
- lp->lock = 0; /* unlock the page register */
- } else {
- printk("ewrk3_queue_pkt(): Invalid free memory page (%d).\n",
- (u_char) page);
- }
- } else {
- printk("ewrk3_queue_pkt(): No free resources...\n");
- printk("ewrk3_queue_pkt(): CSR: %02x ICR: %02x FMQC: %02x\n",inb(EWRK3_CSR),inb(EWRK3_ICR),inb(EWRK3_FMQC));
- }
-
- /* Check for free resources: clear 'tbusy' if there are some */
- if (inb(EWRK3_FMQC) > 0) {
- dev->tbusy = 0;
- }
-
- ENABLE_IRQs;
- }
-
- return status;
-}
-
-/*
-** The EWRK3 interrupt handler.
-*/
-static void
-ewrk3_interrupt(int irq, void *dev_id, struct pt_regs * regs)
-{
- struct device *dev = dev_id;
- struct ewrk3_private *lp;
- u_long iobase;
- u_char icr, cr, csr;
-
- if (dev == NULL) {
- printk ("ewrk3_interrupt(): irq %d for unknown device.\n", irq);
- } else {
- lp = (struct ewrk3_private *)dev->priv;
- iobase = dev->base_addr;
-
- if (dev->interrupt)
- printk("%s: Re-entering the interrupt handler.\n", dev->name);
-
- dev->interrupt = MASK_INTERRUPTS;
-
- /* get the interrupt information */
- csr = inb(EWRK3_CSR);
-
- /*
- ** Mask the EWRK3 board interrupts and turn on the LED
- */
- DISABLE_IRQs;
-
- cr = inb(EWRK3_CR);
- cr |= CR_LED;
- outb(cr, EWRK3_CR);
-
- if (csr & CSR_RNE) /* Rx interrupt (packet[s] arrived) */
- ewrk3_rx(dev);
-
- if (csr & CSR_TNE) /* Tx interrupt (packet sent) */
- ewrk3_tx(dev);
-
- /*
- ** Now deal with the TX/RX disable flags. These are set when there
- ** are no more resources. If resources free up then enable these
- ** interrupts, otherwise mask them - failure to do this will result
- ** in the system hanging in an interrupt loop.
- */
- if (inb(EWRK3_FMQC)) { /* any resources available? */
- lp->irq_mask |= ICR_TXDM|ICR_RXDM;/* enable the interrupt source */
- csr &= ~(CSR_TXD|CSR_RXD);/* ensure restart of a stalled TX or RX */
- outb(csr, EWRK3_CSR);
- dev->tbusy = 0; /* clear TX busy flag */
- mark_bh(NET_BH);
- } else {
- lp->irq_mask &= ~(ICR_TXDM|ICR_RXDM);/* disable the interrupt source */
- }
-
- /* Unmask the EWRK3 board interrupts and turn off the LED */
- cr &= ~CR_LED;
- outb(cr, EWRK3_CR);
-
- dev->interrupt = UNMASK_INTERRUPTS;
- ENABLE_IRQs;
- }
-
- return;
-}
-
-static int
-ewrk3_rx(struct device *dev)
-{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- int i, status = 0;
- u_char page, tmpPage = 0, tmpLock = 0;
- u_long buf = 0;
-
- while (inb(EWRK3_RQC) && !status) { /* Whilst there's incoming data */
- if ((page = inb(EWRK3_RQ)) < lp->mPage) {/* Get next entry's buffer page */
- /*
- ** Preempt any process using the current page register. Check for
- ** an existing lock to reduce time taken in I/O transactions.
- */
- if ((tmpLock = test_and_set_bit(0, (void *)&lp->lock)) == 1) { /* Assert lock */
- if (lp->shmem_length == IO_ONLY) { /* Get existing page */
- tmpPage = inb(EWRK3_IOPR);
- } else {
- tmpPage = inb(EWRK3_MPR);
+ START_EWRK3; /* Enable the TX and/or RX */
+}
+
+/*
+ ** Writes a socket buffer to the free page queue
+ */
+static int ewrk3_queue_pkt(struct sk_buff *skb, struct device *dev)
+{
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ int status = 0;
+ u_char icr, csr;
+
+ /* Transmitter timeout, serious problems. */
+ if (dev->tbusy || lp->lock) {
+ int tickssofar = jiffies - dev->trans_start;
+ if (tickssofar < QUEUE_PKT_TIMEOUT) {
+ status = -1;
+ } else if (!lp->hard_strapped) {
+ printk("%s: transmit timed/locked out, status %04x, resetting.\n",
+ dev->name, inb(EWRK3_CSR));
+
+ /*
+ ** Mask all board interrupts
+ */
+ DISABLE_IRQs;
+
+ /*
+ ** Stop the TX and RX...
+ */
+ STOP_EWRK3;
+
+ ewrk3_init(dev);
+
+ /*
+ ** Unmask EWRK3 board interrupts
+ */
+ ENABLE_IRQs;
+
+ dev->tbusy = 0;
+ dev->trans_start = jiffies;
+ }
+ } else if (skb->len > 0) {
+
+ /*
+ ** 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)
+ printk("%s: Transmitter access conflict.\n", dev->name);
+
+ DISABLE_IRQs; /* So that the page # remains correct */
+
+ /*
+ ** Get a free page from the FMQ when resources are available
+ */
+ if (inb(EWRK3_FMQC) > 0) {
+ u_long buf = 0;
+ u_char page;
+
+ if ((page = inb(EWRK3_FMQ)) < lp->mPage) {
+ /*
+ ** Set up shared memory window and pointer into the window
+ */
+ while (test_and_set_bit(0, (void *) &lp->lock) != 0); /* Wait for lock to free */
+ if (lp->shmem_length == IO_ONLY) {
+ outb(page, EWRK3_IOPR);
+ } else if (lp->shmem_length == SHMEM_2K) {
+ buf = lp->shmem_base;
+ outb(page, EWRK3_MPR);
+ } else if (lp->shmem_length == SHMEM_32K) {
+ buf = ((((short) page << 11) & 0x7800) + lp->shmem_base);
+ outb((page >> 4), EWRK3_MPR);
+ } else if (lp->shmem_length == SHMEM_64K) {
+ buf = ((((short) page << 11) & 0xf800) + lp->shmem_base);
+ outb((page >> 5), EWRK3_MPR);
+ } else {
+ status = -1;
+ printk("%s: Oops - your private data area is hosed!\n", dev->name);
+ }
+
+ if (!status) {
+
+ /*
+ ** Set up the buffer control structures and copy the data from
+ ** the socket buffer to the shared memory .
+ */
+
+ if (lp->shmem_length == IO_ONLY) {
+ int i;
+ u_char *p = skb->data;
+
+ outb((char) (TCR_QMODE | TCR_PAD | TCR_IFC), EWRK3_DATA);
+ outb((char) (skb->len & 0xff), EWRK3_DATA);
+ outb((char) ((skb->len >> 8) & 0xff), EWRK3_DATA);
+ outb((char) 0x04, EWRK3_DATA);
+ for (i = 0; i < skb->len; i++) {
+ outb(*p++, EWRK3_DATA);
+ }
+ outb(page, EWRK3_TQ); /* Start sending pkt */
+ } else {
+ writeb((char) (TCR_QMODE | TCR_PAD | TCR_IFC), (char *) buf); /* ctrl byte */
+ buf += 1;
+ writeb((char) (skb->len & 0xff), (char *) buf); /* length (16 bit xfer) */
+ buf += 1;
+ if (lp->txc) {
+ writeb((char) (((skb->len >> 8) & 0xff) | XCT), (char *) buf);
+ buf += 1;
+ writeb(0x04, (char *) buf); /* index byte */
+ buf += 1;
+ writeb(0x00, (char *) (buf + skb->len)); /* Write the XCT flag */
+ memcpy_toio(buf, skb->data, PRELOAD); /* Write PRELOAD bytes */
+ outb(page, EWRK3_TQ); /* Start sending pkt */
+ memcpy_toio(buf + PRELOAD, skb->data + PRELOAD, skb->len - PRELOAD);
+ writeb(0xff, (char *) (buf + skb->len)); /* Write the XCT flag */
+ } else {
+ writeb((char) ((skb->len >> 8) & 0xff), (char *) buf);
+ buf += 1;
+ writeb(0x04, (char *) buf); /* index byte */
+ buf += 1;
+ memcpy_toio((char *) buf, skb->data, skb->len); /* Write data bytes */
+ outb(page, EWRK3_TQ); /* Start sending pkt */
+ }
+ }
+
+ dev->trans_start = jiffies;
+ dev_kfree_skb(skb, FREE_WRITE);
+
+ } else { /* return unused page to the free memory queue */
+ outb(page, EWRK3_FMQ);
+ }
+ lp->lock = 0; /* unlock the page register */
+ } else {
+ printk("ewrk3_queue_pkt(): Invalid free memory page (%d).\n",
+ (u_char) page);
+ }
+ } else {
+ printk("ewrk3_queue_pkt(): No free resources...\n");
+ printk("ewrk3_queue_pkt(): CSR: %02x ICR: %02x FMQC: %02x\n", inb(EWRK3_CSR), inb(EWRK3_ICR), inb(EWRK3_FMQC));
+ }
+
+ /* Check for free resources: clear 'tbusy' if there are some */
+ if (inb(EWRK3_FMQC) > 0) {
+ dev->tbusy = 0;
+ }
+ ENABLE_IRQs;
}
- }
+ return status;
+}
- /*
- ** Set up shared memory window and pointer into the window
- */
- if (lp->shmem_length == IO_ONLY) {
- outb(page, EWRK3_IOPR);
- } else if (lp->shmem_length == SHMEM_2K) {
- buf = lp->shmem_base;
- outb(page, EWRK3_MPR);
- } else if (lp->shmem_length == SHMEM_32K) {
- buf = ((((short)page << 11) & 0x7800) + lp->shmem_base);
- outb((page >> 4), EWRK3_MPR);
- } else if (lp->shmem_length == SHMEM_64K) {
- buf = ((((short)page << 11) & 0xf800) + lp->shmem_base);
- outb((page >> 5), EWRK3_MPR);
- } else {
- status = -1;
- printk("%s: Oops - your private data area is hosed!\n",dev->name);
- }
-
- if (!status) {
- char rx_status;
- int pkt_len;
+/*
+ ** The EWRK3 interrupt handler.
+ */
+static void ewrk3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct device *dev = dev_id;
+ struct ewrk3_private *lp;
+ u_long iobase;
+ u_char icr, cr, csr;
- if (lp->shmem_length == IO_ONLY) {
- rx_status = inb(EWRK3_DATA);
- pkt_len = inb(EWRK3_DATA);
- pkt_len |= ((u_short)inb(EWRK3_DATA) << 8);
+ if (dev == NULL) {
+ printk("ewrk3_interrupt(): irq %d for unknown device.\n", irq);
} else {
- rx_status = readb(buf);
- buf+=1;
- pkt_len = readw(buf);
- buf+=3;
+ lp = (struct ewrk3_private *) dev->priv;
+ iobase = dev->base_addr;
+
+ if (dev->interrupt)
+ printk("%s: Re-entering the interrupt handler.\n", dev->name);
+
+ dev->interrupt = MASK_INTERRUPTS;
+
+ /* get the interrupt information */
+ csr = inb(EWRK3_CSR);
+
+ /*
+ ** Mask the EWRK3 board interrupts and turn on the LED
+ */
+ DISABLE_IRQs;
+
+ cr = inb(EWRK3_CR);
+ cr |= CR_LED;
+ outb(cr, EWRK3_CR);
+
+ if (csr & CSR_RNE) /* Rx interrupt (packet[s] arrived) */
+ ewrk3_rx(dev);
+
+ if (csr & CSR_TNE) /* Tx interrupt (packet sent) */
+ ewrk3_tx(dev);
+
+ /*
+ ** Now deal with the TX/RX disable flags. These are set when there
+ ** are no more resources. If resources free up then enable these
+ ** interrupts, otherwise mask them - failure to do this will result
+ ** in the system hanging in an interrupt loop.
+ */
+ if (inb(EWRK3_FMQC)) { /* any resources available? */
+ lp->irq_mask |= ICR_TXDM | ICR_RXDM; /* enable the interrupt source */
+ csr &= ~(CSR_TXD | CSR_RXD); /* ensure restart of a stalled TX or RX */
+ outb(csr, EWRK3_CSR);
+ dev->tbusy = 0; /* clear TX busy flag */
+ mark_bh(NET_BH);
+ } else {
+ lp->irq_mask &= ~(ICR_TXDM | ICR_RXDM); /* disable the interrupt source */
+ }
+
+ /* Unmask the EWRK3 board interrupts and turn off the LED */
+ cr &= ~CR_LED;
+ outb(cr, EWRK3_CR);
+
+ dev->interrupt = UNMASK_INTERRUPTS;
+ ENABLE_IRQs;
}
- if (!(rx_status & R_ROK)) { /* There was an error. */
- lp->stats.rx_errors++; /* Update the error stats. */
- if (rx_status & R_DBE) lp->stats.rx_frame_errors++;
- if (rx_status & R_CRC) lp->stats.rx_crc_errors++;
- if (rx_status & R_PLL) lp->stats.rx_fifo_errors++;
- } else {
- struct sk_buff *skb;
+ return;
+}
- if ((skb = dev_alloc_skb(pkt_len+2)) != NULL) {
- unsigned char *p;
- skb->dev = dev;
- skb_reserve(skb,2); /* Align to 16 bytes */
- p = skb_put(skb,pkt_len);
-
- if (lp->shmem_length == IO_ONLY) {
- *p = inb(EWRK3_DATA); /* dummy read */
- for (i=0; i<pkt_len; i++) {
- *p++ = inb(EWRK3_DATA);
- }
- } else {
- memcpy_fromio(p, buf, pkt_len);
- }
-
- /*
- ** Notify the upper protocol layers that there is another
- ** packet to handle
- */
- skb->protocol=eth_type_trans(skb,dev);
- netif_rx(skb);
-
- /*
- ** Update stats
- */
- lp->stats.rx_packets++;
- for (i=1; i<EWRK3_PKT_STAT_SZ-1; i++) {
- if (pkt_len < i*EWRK3_PKT_BIN_SZ) {
- lp->pktStats.bins[i]++;
- i = EWRK3_PKT_STAT_SZ;
- }
- }
- p = skb->data; /* Look at the dest addr */
- if (p[0] & 0x01) { /* Multicast/Broadcast */
- if ((*(s32 *)&p[0] == -1) && (*(s16 *)&p[4] == -1)) {
- lp->pktStats.broadcast++;
- } else {
- lp->pktStats.multicast++;
- }
- } else if ((*(s32 *)&p[0] == *(s32 *)&dev->dev_addr[0]) &&
- (*(s16 *)&p[4] == *(s16 *)&dev->dev_addr[4])) {
- lp->pktStats.unicast++;
- }
-
- lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */
- if (lp->pktStats.bins[0] == 0) { /* Reset counters */
- memset(&lp->pktStats, 0, sizeof(lp->pktStats));
- }
- } else {
- printk("%s: Insufficient memory; nuking packet.\n", dev->name);
- lp->stats.rx_dropped++; /* Really, deferred. */
- break;
- }
- }
- }
- /*
- ** Return the received buffer to the free memory queue
- */
- outb(page, EWRK3_FMQ);
-
- if (tmpLock) { /* If a lock was preempted */
- if (lp->shmem_length == IO_ONLY) { /* Replace old page */
- outb(tmpPage, EWRK3_IOPR);
- } else {
- outb(tmpPage, EWRK3_MPR);
+static int ewrk3_rx(struct device *dev)
+{
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ int i, status = 0;
+ u_char page, tmpPage = 0, tmpLock = 0;
+ u_long buf = 0;
+
+ while (inb(EWRK3_RQC) && !status) { /* Whilst there's incoming data */
+ if ((page = inb(EWRK3_RQ)) < lp->mPage) { /* Get next entry's buffer page */
+ /*
+ ** Preempt any process using the current page register. Check for
+ ** an existing lock to reduce time taken in I/O transactions.
+ */
+ if ((tmpLock = test_and_set_bit(0, (void *) &lp->lock)) == 1) { /* Assert lock */
+ if (lp->shmem_length == IO_ONLY) { /* Get existing page */
+ tmpPage = inb(EWRK3_IOPR);
+ } else {
+ tmpPage = inb(EWRK3_MPR);
+ }
+ }
+ /*
+ ** Set up shared memory window and pointer into the window
+ */
+ if (lp->shmem_length == IO_ONLY) {
+ outb(page, EWRK3_IOPR);
+ } else if (lp->shmem_length == SHMEM_2K) {
+ buf = lp->shmem_base;
+ outb(page, EWRK3_MPR);
+ } else if (lp->shmem_length == SHMEM_32K) {
+ buf = ((((short) page << 11) & 0x7800) + lp->shmem_base);
+ outb((page >> 4), EWRK3_MPR);
+ } else if (lp->shmem_length == SHMEM_64K) {
+ buf = ((((short) page << 11) & 0xf800) + lp->shmem_base);
+ outb((page >> 5), EWRK3_MPR);
+ } else {
+ status = -1;
+ printk("%s: Oops - your private data area is hosed!\n", dev->name);
+ }
+
+ if (!status) {
+ char rx_status;
+ int pkt_len;
+
+ if (lp->shmem_length == IO_ONLY) {
+ rx_status = inb(EWRK3_DATA);
+ pkt_len = inb(EWRK3_DATA);
+ pkt_len |= ((u_short) inb(EWRK3_DATA) << 8);
+ } else {
+ rx_status = readb(buf);
+ buf += 1;
+ pkt_len = readw(buf);
+ buf += 3;
+ }
+
+ if (!(rx_status & R_ROK)) { /* There was an error. */
+ lp->stats.rx_errors++; /* Update the error stats. */
+ if (rx_status & R_DBE)
+ lp->stats.rx_frame_errors++;
+ if (rx_status & R_CRC)
+ lp->stats.rx_crc_errors++;
+ if (rx_status & R_PLL)
+ lp->stats.rx_fifo_errors++;
+ } else {
+ struct sk_buff *skb;
+
+ if ((skb = dev_alloc_skb(pkt_len + 2)) != NULL) {
+ unsigned char *p;
+ skb->dev = dev;
+ skb_reserve(skb, 2); /* Align to 16 bytes */
+ p = skb_put(skb, pkt_len);
+
+ if (lp->shmem_length == IO_ONLY) {
+ *p = inb(EWRK3_DATA); /* dummy read */
+ for (i = 0; i < pkt_len; i++) {
+ *p++ = inb(EWRK3_DATA);
+ }
+ } else {
+ memcpy_fromio(p, buf, pkt_len);
+ }
+
+ /*
+ ** Notify the upper protocol layers that there is another
+ ** packet to handle
+ */
+ skb->protocol = eth_type_trans(skb, dev);
+ netif_rx(skb);
+
+ /*
+ ** Update stats
+ */
+ lp->stats.rx_packets++;
+ for (i = 1; i < EWRK3_PKT_STAT_SZ - 1; i++) {
+ if (pkt_len < i * EWRK3_PKT_BIN_SZ) {
+ lp->pktStats.bins[i]++;
+ i = EWRK3_PKT_STAT_SZ;
+ }
+ }
+ p = skb->data; /* Look at the dest addr */
+ if (p[0] & 0x01) { /* Multicast/Broadcast */
+ if ((*(s32 *) & p[0] == -1) && (*(s16 *) & p[4] == -1)) {
+ lp->pktStats.broadcast++;
+ } else {
+ lp->pktStats.multicast++;
+ }
+ } else if ((*(s32 *) & p[0] == *(s32 *) & dev->dev_addr[0]) &&
+ (*(s16 *) & p[4] == *(s16 *) & dev->dev_addr[4])) {
+ lp->pktStats.unicast++;
+ }
+ lp->pktStats.bins[0]++; /* Duplicates stats.rx_packets */
+ if (lp->pktStats.bins[0] == 0) { /* Reset counters */
+ memset(&lp->pktStats, 0, sizeof(lp->pktStats));
+ }
+ } else {
+ printk("%s: Insufficient memory; nuking packet.\n", dev->name);
+ lp->stats.rx_dropped++; /* Really, deferred. */
+ break;
+ }
+ }
+ }
+ /*
+ ** Return the received buffer to the free memory queue
+ */
+ outb(page, EWRK3_FMQ);
+
+ if (tmpLock) { /* If a lock was preempted */
+ if (lp->shmem_length == IO_ONLY) { /* Replace old page */
+ outb(tmpPage, EWRK3_IOPR);
+ } else {
+ outb(tmpPage, EWRK3_MPR);
+ }
+ }
+ lp->lock = 0; /* Unlock the page register */
+ } else {
+ printk("ewrk3_rx(): Illegal page number, page %d\n", page);
+ printk("ewrk3_rx(): CSR: %02x ICR: %02x FMQC: %02x\n", inb(EWRK3_CSR), inb(EWRK3_ICR), inb(EWRK3_FMQC));
+ }
+ }
+ return status;
+}
+
+/*
+ ** Buffer sent - check for TX buffer errors.
+ */
+static int ewrk3_tx(struct device *dev)
+{
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ u_char tx_status;
+
+ while ((tx_status = inb(EWRK3_TDQ)) > 0) { /* Whilst there's old buffers */
+ if (tx_status & T_VSTS) { /* The status is valid */
+ if (tx_status & T_TXE) {
+ lp->stats.tx_errors++;
+ if (tx_status & T_NCL)
+ lp->stats.tx_carrier_errors++;
+ if (tx_status & T_LCL)
+ lp->stats.tx_window_errors++;
+ if (tx_status & T_CTU) {
+ if ((tx_status & T_COLL) ^ T_XUR) {
+ lp->pktStats.tx_underruns++;
+ } else {
+ lp->pktStats.excessive_underruns++;
+ }
+ } else if (tx_status & T_COLL) {
+ if ((tx_status & T_COLL) ^ T_XCOLL) {
+ lp->stats.collisions++;
+ } else {
+ lp->pktStats.excessive_collisions++;
+ }
+ }
+ } else {
+ lp->stats.tx_packets++;
+ }
+ }
+ }
+
+ return 0;
+}
+
+static int ewrk3_close(struct device *dev)
+{
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ u_char icr, csr;
+
+ dev->start = 0;
+ dev->tbusy = 1;
+
+ if (ewrk3_debug > 1) {
+ printk("%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, inb(EWRK3_CSR));
}
- }
- lp->lock = 0; /* Unlock the page register */
- } else {
- printk("ewrk3_rx(): Illegal page number, page %d\n",page);
- printk("ewrk3_rx(): CSR: %02x ICR: %02x FMQC: %02x\n",inb(EWRK3_CSR),inb(EWRK3_ICR),inb(EWRK3_FMQC));
- }
- }
- return status;
-}
-
-/*
-** Buffer sent - check for TX buffer errors.
-*/
-static int
-ewrk3_tx(struct device *dev)
-{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- u_char tx_status;
-
- while ((tx_status = inb(EWRK3_TDQ)) > 0) { /* Whilst there's old buffers */
- if (tx_status & T_VSTS) { /* The status is valid */
- if (tx_status & T_TXE) {
- lp->stats.tx_errors++;
- if (tx_status & T_NCL) lp->stats.tx_carrier_errors++;
- if (tx_status & T_LCL) lp->stats.tx_window_errors++;
- if (tx_status & T_CTU) {
- if ((tx_status & T_COLL) ^ T_XUR) {
- lp->pktStats.tx_underruns++;
- } else {
- lp->pktStats.excessive_underruns++;
- }
- } else if (tx_status & T_COLL) {
- if ((tx_status & T_COLL) ^ T_XCOLL) {
- lp->stats.collisions++;
- } else {
- lp->pktStats.excessive_collisions++;
- }
- }
- } else {
- lp->stats.tx_packets++;
- }
- }
- }
-
- return 0;
-}
-
-static int
-ewrk3_close(struct device *dev)
-{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- u_char icr, csr;
-
- dev->start = 0;
- dev->tbusy = 1;
-
- if (ewrk3_debug > 1) {
- printk("%s: Shutting down ethercard, status was %2.2x.\n",
- dev->name, inb(EWRK3_CSR));
- }
-
- /*
- ** We stop the EWRK3 here... mask interrupts and stop TX & RX
- */
- DISABLE_IRQs;
-
- STOP_EWRK3;
-
- /*
- ** Clean out the TX and RX queues here (note that one entry
- ** may get added to either the TXD or RX queues if the the TX or RX
- ** just starts processing a packet before the STOP_EWRK3 command
- ** is received. This will be flushed in the ewrk3_open() call).
- */
- while (inb(EWRK3_TQ));
- while (inb(EWRK3_TDQ));
- while (inb(EWRK3_RQ));
-
- if (!lp->hard_strapped) {
- free_irq(dev->irq, dev);
- }
+ /*
+ ** We stop the EWRK3 here... mask interrupts and stop TX & RX
+ */
+ DISABLE_IRQs;
+
+ STOP_EWRK3;
- MOD_DEC_USE_COUNT;
+ /*
+ ** Clean out the TX and RX queues here (note that one entry
+ ** may get added to either the TXD or RX queues if the the TX or RX
+ ** just starts processing a packet before the STOP_EWRK3 command
+ ** is received. This will be flushed in the ewrk3_open() call).
+ */
+ while (inb(EWRK3_TQ));
+ while (inb(EWRK3_TDQ));
+ while (inb(EWRK3_RQ));
- return 0;
+ if (!lp->hard_strapped) {
+ free_irq(dev->irq, dev);
+ }
+ MOD_DEC_USE_COUNT;
+
+ return 0;
}
static struct net_device_stats *ewrk3_get_stats(struct device *dev)
{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
/* Null body since there is no framing error counter */
return &lp->stats;
}
/*
-** Set or clear the multicast filter for this adapter.
-*/
+ ** Set or clear the multicast filter for this adapter.
+ */
static void set_multicast_list(struct device *dev)
{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- u_long iobase = dev->base_addr;
- u_char csr;
-
- csr = inb(EWRK3_CSR);
-
- if (lp->shmem_length == IO_ONLY) {
- lp->mctbl = (char *) PAGE0_HTE;
- } else {
- lp->mctbl = (char *)(lp->shmem_base + PAGE0_HTE);
- }
-
- csr &= ~(CSR_PME | CSR_MCE);
- if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
- csr |= CSR_PME;
- outb(csr, EWRK3_CSR);
- } else {
- SetMulticastFilter(dev);
- csr |= CSR_MCE;
- outb(csr, EWRK3_CSR);
- }
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ u_long iobase = dev->base_addr;
+ u_char csr;
+
+ csr = inb(EWRK3_CSR);
+
+ if (lp->shmem_length == IO_ONLY) {
+ lp->mctbl = (char *) PAGE0_HTE;
+ } else {
+ lp->mctbl = (char *) (lp->shmem_base + PAGE0_HTE);
+ }
+
+ csr &= ~(CSR_PME | CSR_MCE);
+ if (dev->flags & IFF_PROMISC) { /* set promiscuous mode */
+ csr |= CSR_PME;
+ outb(csr, EWRK3_CSR);
+ } else {
+ SetMulticastFilter(dev);
+ csr |= CSR_MCE;
+ outb(csr, EWRK3_CSR);
+ }
}
/*
-** Calculate the hash code and update the logical address filter
-** from a list of ethernet multicast addresses.
-** Little endian crc one liner from Matt Thomas, DEC.
-**
-** Note that when clearing the table, the broadcast bit must remain asserted
-** to receive broadcast messages.
-*/
+ ** Calculate the hash code and update the logical address filter
+ ** from a list of ethernet multicast addresses.
+ ** Little endian crc one liner from Matt Thomas, DEC.
+ **
+ ** Note that when clearing the table, the broadcast bit must remain asserted
+ ** to receive broadcast messages.
+ */
static void SetMulticastFilter(struct device *dev)
{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- struct dev_mc_list *dmi=dev->mc_list;
- u_long iobase = dev->base_addr;
- int i;
- char *addrs, j, bit, byte;
- short *p = (short *) lp->mctbl;
- u16 hashcode;
- s32 crc, poly = CRC_POLYNOMIAL_LE;
-
- while (test_and_set_bit(0, (void *)&lp->lock) != 0); /* Wait for lock to free */
-
- if (lp->shmem_length == IO_ONLY) {
- outb(0, EWRK3_IOPR);
- outw(EEPROM_OFFSET(lp->mctbl), EWRK3_PIR1);
- } else {
- outb(0, EWRK3_MPR);
- }
-
- if (dev->flags & IFF_ALLMULTI) {
- for (i=0; i<(HASH_TABLE_LEN >> 3); i++) {
- if (lp->shmem_length == IO_ONLY) {
- outb(0xff, EWRK3_DATA);
- } else { /* memset didn't work here */
- writew(0xffff, p);
- p++; i++;
- }
- }
- } else {
- /* Clear table except for broadcast bit */
- if (lp->shmem_length == IO_ONLY) {
- for (i=0; i<(HASH_TABLE_LEN >> 4) - 1; i++) {
- outb(0x00, EWRK3_DATA);
- }
- outb(0x80, EWRK3_DATA); i++; /* insert the broadcast bit */
- for (; i<(HASH_TABLE_LEN >> 3); i++) {
- outb(0x00, EWRK3_DATA);
- }
- } else {
- memset_io(lp->mctbl, 0, (HASH_TABLE_LEN >> 3));
- writeb(0x80, (char *)(lp->mctbl + (HASH_TABLE_LEN >> 4) - 1));
- }
-
- /* Update table */
- for (i=0;i<dev->mc_count;i++) { /* for each address in the list */
- addrs=dmi->dmi_addr;
- dmi=dmi->next;
- if ((*addrs & 0x01) == 1) { /* multicast address? */
- crc = 0xffffffff; /* init CRC for each address */
- for (byte=0;byte<ETH_ALEN;byte++) { /* for each address byte */
- /* process each address bit */
- for (bit = *addrs++,j=0;j<8;j++, bit>>=1) {
- crc = (crc >> 1) ^ (((crc ^ bit) & 0x01) ? poly : 0);
- }
- }
- hashcode = crc & ((1 << 9) - 1); /* hashcode is 9 LSb of CRC */
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ struct dev_mc_list *dmi = dev->mc_list;
+ u_long iobase = dev->base_addr;
+ int i;
+ char *addrs, j, bit, byte;
+ short *p = (short *) lp->mctbl;
+ u16 hashcode;
+ s32 crc, poly = CRC_POLYNOMIAL_LE;
- byte = hashcode >> 3; /* bit[3-8] -> byte in filter */
- bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */
+ while (test_and_set_bit(0, (void *) &lp->lock) != 0); /* Wait for lock to free */
if (lp->shmem_length == IO_ONLY) {
- u_char tmp;
+ outb(0, EWRK3_IOPR);
+ outw(EEPROM_OFFSET(lp->mctbl), EWRK3_PIR1);
+ } else {
+ outb(0, EWRK3_MPR);
+ }
- outw((short)((long)lp->mctbl) + byte, EWRK3_PIR1);
- tmp = inb(EWRK3_DATA);
- tmp |= bit;
- outw((short)((long)lp->mctbl) + byte, EWRK3_PIR1);
- outb(tmp, EWRK3_DATA);
+ if (dev->flags & IFF_ALLMULTI) {
+ for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) {
+ if (lp->shmem_length == IO_ONLY) {
+ outb(0xff, EWRK3_DATA);
+ } else { /* memset didn't work here */
+ writew(0xffff, p);
+ p++;
+ i++;
+ }
+ }
} else {
- writeb(readb(lp->mctbl + byte) | bit, lp->mctbl + byte);
+ /* Clear table except for broadcast bit */
+ if (lp->shmem_length == IO_ONLY) {
+ for (i = 0; i < (HASH_TABLE_LEN >> 4) - 1; i++) {
+ outb(0x00, EWRK3_DATA);
+ }
+ outb(0x80, EWRK3_DATA);
+ i++; /* insert the broadcast bit */
+ for (; i < (HASH_TABLE_LEN >> 3); i++) {
+ outb(0x00, EWRK3_DATA);
+ }
+ } else {
+ memset_io(lp->mctbl, 0, (HASH_TABLE_LEN >> 3));
+ writeb(0x80, (char *) (lp->mctbl + (HASH_TABLE_LEN >> 4) - 1));
+ }
+
+ /* Update table */
+ for (i = 0; i < dev->mc_count; i++) { /* for each address in the list */
+ addrs = dmi->dmi_addr;
+ dmi = dmi->next;
+ if ((*addrs & 0x01) == 1) { /* multicast address? */
+ crc = 0xffffffff; /* init CRC for each address */
+ for (byte = 0; byte < ETH_ALEN; byte++) { /* for each address byte */
+ /* process each address bit */
+ for (bit = *addrs++, j = 0; j < 8; j++, bit >>= 1) {
+ crc = (crc >> 1) ^ (((crc ^ bit) & 0x01) ? poly : 0);
+ }
+ }
+ hashcode = crc & ((1 << 9) - 1); /* hashcode is 9 LSb of CRC */
+
+ byte = hashcode >> 3; /* bit[3-8] -> byte in filter */
+ bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */
+
+ if (lp->shmem_length == IO_ONLY) {
+ u_char tmp;
+
+ outw((short) ((long) lp->mctbl) + byte, EWRK3_PIR1);
+ tmp = inb(EWRK3_DATA);
+ tmp |= bit;
+ outw((short) ((long) lp->mctbl) + byte, EWRK3_PIR1);
+ outb(tmp, EWRK3_DATA);
+ } else {
+ writeb(readb(lp->mctbl + byte) | bit, lp->mctbl + byte);
+ }
+ }
+ }
}
- }
- }
- }
- lp->lock = 0; /* Unlock the page register */
+ lp->lock = 0; /* Unlock the page register */
- return;
+ return;
}
/*
-** ISA bus I/O device probe
-*/
+ ** ISA bus I/O device probe
+ */
__initfunc(static void isa_probe(struct device *dev, u_long ioaddr))
{
- int i = num_ewrk3s, maxSlots;
- u_long iobase;
+ int i = num_ewrk3s, maxSlots;
+ u_long iobase;
- if (!ioaddr && autoprobed) return ; /* Been here before ! */
- if (ioaddr >= 0x400) return; /* Not ISA */
+ if (!ioaddr && autoprobed)
+ return; /* Been here before ! */
+ if (ioaddr >= 0x400)
+ return; /* Not ISA */
+
+ if (ioaddr == 0) { /* Autoprobing */
+ iobase = EWRK3_IO_BASE; /* Get the first slot address */
+ maxSlots = 24;
+ } else { /* Probe a specific location */
+ iobase = ioaddr;
+ maxSlots = i + 1;
+ }
+
+ for (; (i < maxSlots) && (dev != NULL); iobase += EWRK3_IOP_INC, i++) {
+ if (!check_region(iobase, EWRK3_TOTAL_SIZE)) {
+ if (DevicePresent(iobase) == 0) {
+ if ((dev = alloc_device(dev, iobase)) != NULL) {
+ if (ewrk3_hw_init(dev, iobase) == 0) {
+ num_ewrk3s++;
+ }
+ num_eth++;
+ }
+ }
+ } else if (autoprobed) {
+ printk("%s: region already allocated at 0x%04lx.\n", dev->name, iobase);
+ }
+ }
- if (ioaddr == 0) { /* Autoprobing */
- iobase = EWRK3_IO_BASE; /* Get the first slot address */
- maxSlots = 24;
- } else { /* Probe a specific location */
- iobase = ioaddr;
- maxSlots = i + 1;
- }
-
- for (; (i<maxSlots) && (dev!=NULL);iobase+=EWRK3_IOP_INC, i++) {
- if (!check_region(iobase, EWRK3_TOTAL_SIZE)) {
- if (DevicePresent(iobase) == 0) {
- if ((dev = alloc_device(dev, iobase)) != NULL) {
- if (ewrk3_hw_init(dev, iobase) == 0) {
- num_ewrk3s++;
- }
- num_eth++;
- }
- }
- } else if (autoprobed) {
- printk("%s: region already allocated at 0x%04lx.\n", dev->name, iobase);
- }
- }
-
- return;
+ return;
}
/*
-** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually
-** the motherboard.
-*/
+ ** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually
+ ** the motherboard.
+ */
__initfunc(static void eisa_probe(struct device *dev, u_long ioaddr))
{
- int i, maxSlots;
- u_long iobase;
- char name[EWRK3_STRLEN];
-
- if (!ioaddr && autoprobed) return ; /* Been here before ! */
- if (ioaddr < 0x1000) return; /* Not EISA */
-
- if (ioaddr == 0) { /* Autoprobing */
- iobase = EISA_SLOT_INC; /* Get the first slot address */
- i = 1;
- maxSlots = MAX_EISA_SLOTS;
- } else { /* Probe a specific location */
- iobase = ioaddr;
- i = (ioaddr >> 12);
- maxSlots = i + 1;
- }
-
- for (i=1; (i<maxSlots) && (dev!=NULL); i++, iobase+=EISA_SLOT_INC) {
- if (EISA_signature(name, EISA_ID) == 0) {
- if (!check_region(iobase, EWRK3_TOTAL_SIZE)) {
- if (DevicePresent(iobase) == 0) {
- if ((dev = alloc_device(dev, iobase)) != NULL) {
- if (ewrk3_hw_init(dev, iobase) == 0) {
- num_ewrk3s++;
- }
- num_eth++;
- }
- }
- } else if (autoprobed) {
- printk("%s: region already allocated at 0x%04lx.\n", dev->name, iobase);
- }
- }
- }
-
- return;
+ int i, maxSlots;
+ u_long iobase;
+ char name[EWRK3_STRLEN];
+
+ if (!ioaddr && autoprobed)
+ return; /* Been here before ! */
+ if (ioaddr < 0x1000)
+ return; /* Not EISA */
+
+ if (ioaddr == 0) { /* Autoprobing */
+ iobase = EISA_SLOT_INC; /* Get the first slot address */
+ i = 1;
+ maxSlots = MAX_EISA_SLOTS;
+ } else { /* Probe a specific location */
+ iobase = ioaddr;
+ i = (ioaddr >> 12);
+ maxSlots = i + 1;
+ }
+
+ for (i = 1; (i < maxSlots) && (dev != NULL); i++, iobase += EISA_SLOT_INC) {
+ if (EISA_signature(name, EISA_ID) == 0) {
+ if (!check_region(iobase, EWRK3_TOTAL_SIZE)) {
+ if (DevicePresent(iobase) == 0) {
+ if ((dev = alloc_device(dev, iobase)) != NULL) {
+ if (ewrk3_hw_init(dev, iobase) == 0) {
+ num_ewrk3s++;
+ }
+ num_eth++;
+ }
+ }
+ } else if (autoprobed) {
+ printk("%s: region already allocated at 0x%04lx.\n", dev->name, iobase);
+ }
+ }
+ }
+
+ return;
}
/*
-** Search the entire 'eth' device list for a fixed probe. If a match isn't
-** found then check for an autoprobe or unused device location. If they
-** are not available then insert a new device structure at the end of
-** the current list.
-*/
+ ** Search the entire 'eth' device list for a fixed probe. If a match isn't
+ ** found then check for an autoprobe or unused device location. If they
+ ** are not available then insert a new device structure at the end of
+ ** the current list.
+ */
__initfunc(static struct device *
-alloc_device(struct device *dev, u_long iobase))
+ alloc_device(struct device *dev, u_long iobase))
{
- struct device *adev = NULL;
- int fixed = 0, new_dev = 0;
-
- num_eth = ewrk3_dev_index(dev->name);
- if (loading_module) return dev;
+ struct device *adev = NULL;
+ int fixed = 0, new_dev = 0;
- while (1) {
- if (((dev->base_addr == EWRK3_NDA) || (dev->base_addr==0)) && !adev) {
- adev=dev;
- } else if ((dev->priv == NULL) && (dev->base_addr==iobase)) {
- fixed = 1;
- } else {
- if (dev->next == NULL) {
- new_dev = 1;
- } else if (strncmp(dev->next->name, "eth", 3) != 0) {
- new_dev = 1;
- }
- }
- if ((dev->next == NULL) || new_dev || fixed) break;
- dev = dev->next;
- num_eth++;
- }
- if (adev && !fixed) {
- dev = adev;
num_eth = ewrk3_dev_index(dev->name);
- new_dev = 0;
- }
-
- if (((dev->next == NULL) &&
- ((dev->base_addr != EWRK3_NDA) && (dev->base_addr != 0)) && !fixed) ||
- new_dev) {
- num_eth++; /* New device */
- dev = insert_device(dev, iobase, ewrk3_probe);
- }
+ if (loading_module)
+ return dev;
- return dev;
+ while (1) {
+ if (((dev->base_addr == EWRK3_NDA) || (dev->base_addr == 0)) && !adev) {
+ adev = dev;
+ } else if ((dev->priv == NULL) && (dev->base_addr == iobase)) {
+ fixed = 1;
+ } else {
+ if (dev->next == NULL) {
+ new_dev = 1;
+ } else if (strncmp(dev->next->name, "eth", 3) != 0) {
+ new_dev = 1;
+ }
+ }
+ if ((dev->next == NULL) || new_dev || fixed)
+ break;
+ dev = dev->next;
+ num_eth++;
+ }
+ if (adev && !fixed) {
+ dev = adev;
+ num_eth = ewrk3_dev_index(dev->name);
+ new_dev = 0;
+ }
+ if (((dev->next == NULL) &&
+ ((dev->base_addr != EWRK3_NDA) && (dev->base_addr != 0)) && !fixed) ||
+ new_dev) {
+ num_eth++; /* New device */
+ dev = insert_device(dev, iobase, ewrk3_probe);
+ }
+ return dev;
}
/*
-** If at end of eth device list and can't use current entry, malloc
-** one up. If memory could not be allocated, print an error message.
-*/
+ ** If at end of eth device list and can't use current entry, malloc
+ ** one up. If memory could not be allocated, print an error message.
+ */
__initfunc(static struct device *
-insert_device(struct device *dev, u_long iobase, int (*init)(struct device *)))
+ insert_device(struct device *dev, u_long iobase, int (*init) (struct device *)))
{
- struct device *new;
+ struct device *new;
- new = (struct device *)kmalloc(sizeof(struct device)+8, GFP_KERNEL);
- if (new == NULL) {
- printk("eth%d: Device not initialised, insufficient memory\n",num_eth);
- return NULL;
- } else {
- new->next = dev->next;
- dev->next = new;
- dev = dev->next; /* point to the new device */
- dev->name = (char *)(dev + 1);
- if (num_eth > 9999) {
- sprintf(dev->name,"eth????");/* New device name */
+ new = (struct device *) kmalloc(sizeof(struct device) + 8, GFP_KERNEL);
+ if (new == NULL) {
+ printk("eth%d: Device not initialised, insufficient memory\n", num_eth);
+ return NULL;
} else {
- sprintf(dev->name,"eth%d", num_eth);/* New device name */
+ new->next = dev->next;
+ dev->next = new;
+ dev = dev->next; /* point to the new device */
+ dev->name = (char *) (dev + 1);
+ if (num_eth > 9999) {
+ sprintf(dev->name, "eth????"); /* New device name */
+ } else {
+ sprintf(dev->name, "eth%d", num_eth); /* New device name */
+ }
+ dev->base_addr = iobase; /* assign the io address */
+ dev->init = init; /* initialisation routine */
}
- dev->base_addr = iobase; /* assign the io address */
- dev->init = init; /* initialisation routine */
- }
- return dev;
+ return dev;
}
__initfunc(static int
-ewrk3_dev_index(char *s))
+ ewrk3_dev_index(char *s))
{
- int i=0, j=0;
+ int i = 0, j = 0;
- for (;*s; s++) {
- if (isdigit(*s)) {
- j=1;
- i = (i * 10) + (*s - '0');
- } else if (j) break;
- }
+ for (; *s; s++) {
+ if (isdigit(*s)) {
+ j = 1;
+ i = (i * 10) + (*s - '0');
+ } else if (j)
+ break;
+ }
- return i;
+ return i;
}
/*
-** Read the EWRK3 EEPROM using this routine
-*/
+ ** Read the EWRK3 EEPROM using this routine
+ */
static int Read_EEPROM(u_long iobase, u_char eaddr)
{
- int i;
+ int i;
- outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
- outb(EEPROM_RD, EWRK3_IOPR); /* issue read command */
- for (i=0;i<5000;i++) inb(EWRK3_CSR); /* wait 1msec */
+ outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
+ outb(EEPROM_RD, EWRK3_IOPR); /* issue read command */
+ for (i = 0; i < 5000; i++)
+ inb(EWRK3_CSR); /* wait 1msec */
- return inw(EWRK3_EPROM1); /* 16 bits data return */
+ return inw(EWRK3_EPROM1); /* 16 bits data return */
}
/*
-** Write the EWRK3 EEPROM using this routine
-*/
+ ** Write the EWRK3 EEPROM using this routine
+ */
static int Write_EEPROM(short data, u_long iobase, u_char eaddr)
{
- int i;
+ int i;
- outb(EEPROM_WR_EN, EWRK3_IOPR); /* issue write enable command */
- for (i=0;i<5000;i++) inb(EWRK3_CSR); /* wait 1msec */
- outw(data, EWRK3_EPROM1); /* write data to register */
- outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
- outb(EEPROM_WR, EWRK3_IOPR); /* issue write command */
- for (i=0;i<75000;i++) inb(EWRK3_CSR); /* wait 15msec */
- outb(EEPROM_WR_DIS, EWRK3_IOPR); /* issue write disable command */
- for (i=0;i<5000;i++) inb(EWRK3_CSR); /* wait 1msec */
+ outb(EEPROM_WR_EN, EWRK3_IOPR); /* issue write enable command */
+ for (i = 0; i < 5000; i++)
+ inb(EWRK3_CSR); /* wait 1msec */
+ outw(data, EWRK3_EPROM1); /* write data to register */
+ outb((eaddr & 0x3f), EWRK3_PIR1); /* set up 6 bits of address info */
+ outb(EEPROM_WR, EWRK3_IOPR); /* issue write command */
+ for (i = 0; i < 75000; i++)
+ inb(EWRK3_CSR); /* wait 15msec */
+ outb(EEPROM_WR_DIS, EWRK3_IOPR); /* issue write disable command */
+ for (i = 0; i < 5000; i++)
+ inb(EWRK3_CSR); /* wait 1msec */
- return 0;
+ return 0;
}
/*
-** Look for a particular board name in the on-board EEPROM.
-*/
+ ** Look for a particular board name in the on-board EEPROM.
+ */
__initfunc(static void EthwrkSignature(char *name, char *eeprom_image))
{
- u_long i,j,k;
- char *signatures[] = EWRK3_SIGNATURE;
+ u_long i, j, k;
+ char *signatures[] = EWRK3_SIGNATURE;
- strcpy(name, "");
- for (i=0;*signatures[i] != '\0' && *name == '\0';i++) {
- for (j=EEPROM_PNAME7,k=0;j<=EEPROM_PNAME0 && k<strlen(signatures[i]);j++) {
- if (signatures[i][k] == eeprom_image[j]) { /* track signature */
- k++;
- } else { /* lost signature; begin search again */
- k=0;
- }
- }
- if (k == strlen(signatures[i])) {
- for (k=0; k<EWRK3_STRLEN; k++) {
- name[k] = eeprom_image[EEPROM_PNAME7 + k];
- name[EWRK3_STRLEN] = '\0';
- }
- }
- }
-
- return; /* return the device name string */
+ strcpy(name, "");
+ for (i = 0; *signatures[i] != '\0' && *name == '\0'; i++) {
+ for (j = EEPROM_PNAME7, k = 0; j <= EEPROM_PNAME0 && k < strlen(signatures[i]); j++) {
+ if (signatures[i][k] == eeprom_image[j]) { /* track signature */
+ k++;
+ } else { /* lost signature; begin search again */
+ k = 0;
+ }
+ }
+ if (k == strlen(signatures[i])) {
+ for (k = 0; k < EWRK3_STRLEN; k++) {
+ name[k] = eeprom_image[EEPROM_PNAME7 + k];
+ name[EWRK3_STRLEN] = '\0';
+ }
+ }
+ }
+
+ return; /* return the device name string */
}
/*
-** Look for a special sequence in the Ethernet station address PROM that
-** is common across all EWRK3 products.
-**
-** Search the Ethernet address ROM for the signature. Since the ROM address
-** counter can start at an arbitrary point, the search must include the entire
-** probe sequence length plus the (length_of_the_signature - 1).
-** Stop the search IMMEDIATELY after the signature is found so that the
-** PROM address counter is correctly positioned at the start of the
-** ethernet address for later read out.
-*/
+ ** Look for a special sequence in the Ethernet station address PROM that
+ ** is common across all EWRK3 products.
+ **
+ ** Search the Ethernet address ROM for the signature. Since the ROM address
+ ** counter can start at an arbitrary point, the search must include the entire
+ ** probe sequence length plus the (length_of_the_signature - 1).
+ ** Stop the search IMMEDIATELY after the signature is found so that the
+ ** PROM address counter is correctly positioned at the start of the
+ ** ethernet address for later read out.
+ */
__initfunc(static int DevicePresent(u_long iobase))
{
- union {
- struct {
- u32 a;
- u32 b;
- } llsig;
- char Sig[sizeof(u32) << 1];
- } dev;
- short sigLength;
- char data;
- int i, j, status = 0;
-
- dev.llsig.a = ETH_PROM_SIG;
- dev.llsig.b = ETH_PROM_SIG;
- sigLength = sizeof(u32) << 1;
-
- for (i=0,j=0;j<sigLength && i<PROBE_LENGTH+sigLength-1;i++) {
- data = inb(EWRK3_APROM);
- if (dev.Sig[j] == data) { /* track signature */
- j++;
- } else { /* lost signature; begin search again */
- if (data == dev.Sig[0]) {
- j=1;
- } else {
- j=0;
- }
- }
- }
-
- if (j!=sigLength) {
- status = -ENODEV; /* search failed */
- }
-
- return status;
-}
-
-__initfunc(static u_char get_hw_addr(struct device *dev, u_char *eeprom_image, char chipType))
-{
- int i, j, k;
- u_short chksum;
- u_char crc, lfsr, sd, status = 0;
- u_long iobase = dev->base_addr;
- u16 tmp;
-
- if (chipType == LeMAC2) {
- for (crc=0x6a, j=0; j<ETH_ALEN; j++) {
- sd = dev->dev_addr[j] = eeprom_image[EEPROM_PADDR0 + j];
- outb(dev->dev_addr[j], EWRK3_PAR0 + j);
- for (k=0; k<8; k++, sd >>= 1) {
- lfsr = ((((crc & 0x02) >> 1) ^ (crc & 0x01)) ^ (sd & 0x01)) << 7;
- crc = (crc >> 1) + lfsr;
- }
- }
- if (crc != eeprom_image[EEPROM_PA_CRC]) status = -1;
- } else {
- for (i=0,k=0;i<ETH_ALEN;) {
- k <<= 1 ;
- if (k > 0xffff) k-=0xffff;
-
- k += (u_char) (tmp = inb(EWRK3_APROM));
- dev->dev_addr[i] = (u_char) tmp;
- outb(dev->dev_addr[i], EWRK3_PAR0 + i);
- i++;
- k += (u_short) ((tmp = inb(EWRK3_APROM)) << 8);
- dev->dev_addr[i] = (u_char) tmp;
- outb(dev->dev_addr[i], EWRK3_PAR0 + i);
- i++;
-
- if (k > 0xffff) k-=0xffff;
- }
- if (k == 0xffff) k=0;
- chksum = inb(EWRK3_APROM);
- chksum |= (inb(EWRK3_APROM)<<8);
- if (k != chksum) status = -1;
- }
+ union {
+ struct {
+ u32 a;
+ u32 b;
+ } llsig;
+ char Sig[sizeof(u32) << 1];
+ }
+ dev;
+ short sigLength;
+ char data;
+ int i, j, status = 0;
+
+ dev.llsig.a = ETH_PROM_SIG;
+ dev.llsig.b = ETH_PROM_SIG;
+ sigLength = sizeof(u32) << 1;
+
+ for (i = 0, j = 0; j < sigLength && i < PROBE_LENGTH + sigLength - 1; i++) {
+ data = inb(EWRK3_APROM);
+ if (dev.Sig[j] == data) { /* track signature */
+ j++;
+ } else { /* lost signature; begin search again */
+ if (data == dev.Sig[0]) {
+ j = 1;
+ } else {
+ j = 0;
+ }
+ }
+ }
+
+ if (j != sigLength) {
+ status = -ENODEV; /* search failed */
+ }
+ return status;
+}
+
+__initfunc(static u_char get_hw_addr(struct device *dev, u_char * eeprom_image, char chipType))
+{
+ int i, j, k;
+ u_short chksum;
+ u_char crc, lfsr, sd, status = 0;
+ u_long iobase = dev->base_addr;
+ u16 tmp;
+
+ if (chipType == LeMAC2) {
+ for (crc = 0x6a, j = 0; j < ETH_ALEN; j++) {
+ sd = dev->dev_addr[j] = eeprom_image[EEPROM_PADDR0 + j];
+ outb(dev->dev_addr[j], EWRK3_PAR0 + j);
+ for (k = 0; k < 8; k++, sd >>= 1) {
+ lfsr = ((((crc & 0x02) >> 1) ^ (crc & 0x01)) ^ (sd & 0x01)) << 7;
+ crc = (crc >> 1) + lfsr;
+ }
+ }
+ if (crc != eeprom_image[EEPROM_PA_CRC])
+ status = -1;
+ } else {
+ for (i = 0, k = 0; i < ETH_ALEN;) {
+ k <<= 1;
+ if (k > 0xffff)
+ k -= 0xffff;
+
+ k += (u_char) (tmp = inb(EWRK3_APROM));
+ dev->dev_addr[i] = (u_char) tmp;
+ outb(dev->dev_addr[i], EWRK3_PAR0 + i);
+ i++;
+ k += (u_short) ((tmp = inb(EWRK3_APROM)) << 8);
+ dev->dev_addr[i] = (u_char) tmp;
+ outb(dev->dev_addr[i], EWRK3_PAR0 + i);
+ i++;
+
+ if (k > 0xffff)
+ k -= 0xffff;
+ }
+ if (k == 0xffff)
+ k = 0;
+ chksum = inb(EWRK3_APROM);
+ chksum |= (inb(EWRK3_APROM) << 8);
+ if (k != chksum)
+ status = -1;
+ }
- return status;
+ return status;
}
/*
-** Look for a particular board name in the EISA configuration space
-*/
+ ** Look for a particular board name in the EISA configuration space
+ */
__initfunc(static int EISA_signature(char *name, s32 eisa_id))
{
- u_long i;
- char *signatures[] = EWRK3_SIGNATURE;
- char ManCode[EWRK3_STRLEN];
- union {
- s32 ID;
- char Id[4];
- } Eisa;
- int status = 0;
-
- *name = '\0';
- for (i=0; i<4; i++) {
- Eisa.Id[i] = inb(eisa_id + i);
- }
-
- ManCode[0]=(((Eisa.Id[0]>>2)&0x1f)+0x40);
- ManCode[1]=(((Eisa.Id[1]&0xe0)>>5)+((Eisa.Id[0]&0x03)<<3)+0x40);
- ManCode[2]=(((Eisa.Id[2]>>4)&0x0f)+0x30);
- ManCode[3]=((Eisa.Id[2]&0x0f)+0x30);
- ManCode[4]=(((Eisa.Id[3]>>4)&0x0f)+0x30);
- ManCode[5]='\0';
-
- for (i=0;(*signatures[i] != '\0') && (*name == '\0');i++) {
- if (strstr(ManCode, signatures[i]) != NULL) {
- strcpy(name,ManCode);
- status = 1;
- }
- }
-
- return status; /* return the device name string */
+ u_long i;
+ char *signatures[] = EWRK3_SIGNATURE;
+ char ManCode[EWRK3_STRLEN];
+ union {
+ s32 ID;
+ char Id[4];
+ } Eisa;
+ int status = 0;
+
+ *name = '\0';
+ for (i = 0; i < 4; i++) {
+ Eisa.Id[i] = inb(eisa_id + i);
+ }
+
+ ManCode[0] = (((Eisa.Id[0] >> 2) & 0x1f) + 0x40);
+ ManCode[1] = (((Eisa.Id[1] & 0xe0) >> 5) + ((Eisa.Id[0] & 0x03) << 3) + 0x40);
+ ManCode[2] = (((Eisa.Id[2] >> 4) & 0x0f) + 0x30);
+ ManCode[3] = ((Eisa.Id[2] & 0x0f) + 0x30);
+ ManCode[4] = (((Eisa.Id[3] >> 4) & 0x0f) + 0x30);
+ ManCode[5] = '\0';
+
+ for (i = 0; (*signatures[i] != '\0') && (*name == '\0'); i++) {
+ if (strstr(ManCode, signatures[i]) != NULL) {
+ strcpy(name, ManCode);
+ status = 1;
+ }
+ }
+
+ return status; /* return the device name string */
}
/*
-** Perform IOCTL call functions here. Some are privileged operations and the
-** effective uid is checked in those cases.
-*/
+ ** Perform IOCTL call functions here. Some are privileged operations and the
+ ** effective uid is checked in those cases.
+ */
static int ewrk3_ioctl(struct device *dev, struct ifreq *rq, int cmd)
{
- struct ewrk3_private *lp = (struct ewrk3_private *)dev->priv;
- struct ewrk3_ioctl *ioc = (struct ewrk3_ioctl *) &rq->ifr_data;
- u_long iobase = dev->base_addr;
- int i, j, status = 0;
- u_char csr;
- union {
- u_char addr[HASH_TABLE_LEN * ETH_ALEN];
- u_short val[(HASH_TABLE_LEN * ETH_ALEN) >> 1];
- } tmp;
-
- switch(ioc->cmd) {
- case EWRK3_GET_HWADDR: /* Get the hardware address */
- for (i=0; i<ETH_ALEN; i++) {
- tmp.addr[i] = dev->dev_addr[i];
- }
- ioc->len = ETH_ALEN;
- if (!(status = verify_area(VERIFY_WRITE, (void *)ioc->data, ioc->len))) {
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
-
- break;
- case EWRK3_SET_HWADDR: /* Set the hardware address */
- if (suser()) {
- if (!(status = verify_area(VERIFY_READ, (void *)ioc->data, ETH_ALEN))) {
- csr = inb(EWRK3_CSR);
- csr |= (CSR_TXD|CSR_RXD);
- outb(csr, EWRK3_CSR); /* Disable the TX and RX */
+ struct ewrk3_private *lp = (struct ewrk3_private *) dev->priv;
+ struct ewrk3_ioctl *ioc = (struct ewrk3_ioctl *) &rq->ifr_data;
+ u_long iobase = dev->base_addr;
+ int i, j, status = 0;
+ u_char csr;
+ union {
+ u_char addr[HASH_TABLE_LEN * ETH_ALEN];
+ u_short val[(HASH_TABLE_LEN * ETH_ALEN) >> 1];
+ } tmp;
+
+ switch (ioc->cmd) {
+ case EWRK3_GET_HWADDR: /* Get the hardware address */
+ for (i = 0; i < ETH_ALEN; i++) {
+ tmp.addr[i] = dev->dev_addr[i];
+ }
+ ioc->len = ETH_ALEN;
+ if (!(status = verify_area(VERIFY_WRITE, (void *) ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ break;
+ case EWRK3_SET_HWADDR: /* Set the hardware address */
+ if (suser()) {
+ if (!(status = verify_area(VERIFY_READ, (void *) ioc->data, ETH_ALEN))) {
+ csr = inb(EWRK3_CSR);
+ csr |= (CSR_TXD | CSR_RXD);
+ outb(csr, EWRK3_CSR); /* Disable the TX and RX */
+
+ copy_from_user(tmp.addr, ioc->data, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++) {
+ dev->dev_addr[i] = tmp.addr[i];
+ outb(tmp.addr[i], EWRK3_PAR0 + i);
+ }
+
+ csr &= ~(CSR_TXD | CSR_RXD); /* Enable the TX and RX */
+ outb(csr, EWRK3_CSR);
+ }
+ } else {
+ status = -EPERM;
+ }
- copy_from_user(tmp.addr,ioc->data,ETH_ALEN);
- for (i=0; i<ETH_ALEN; i++) {
- dev->dev_addr[i] = tmp.addr[i];
- outb(tmp.addr[i], EWRK3_PAR0 + i);
- }
-
- csr &= ~(CSR_TXD|CSR_RXD); /* Enable the TX and RX */
- outb(csr, EWRK3_CSR);
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_SET_PROM: /* Set Promiscuous Mode */
- if (suser()) {
- csr = inb(EWRK3_CSR);
- csr |= CSR_PME;
- csr &= ~CSR_MCE;
- outb(csr, EWRK3_CSR);
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_CLR_PROM: /* Clear Promiscuous Mode */
- if (suser()) {
- csr = inb(EWRK3_CSR);
- csr &= ~CSR_PME;
- outb(csr, EWRK3_CSR);
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_SAY_BOO: /* Say "Boo!" to the kernel log file */
- printk("%s: Boo!\n", dev->name);
-
- break;
- case EWRK3_GET_MCA: /* Get the multicast address table */
- if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- while (test_and_set_bit(0, (void *)&lp->lock) != 0); /* Wait for lock to free */
- if (lp->shmem_length == IO_ONLY) {
- outb(0, EWRK3_IOPR);
- outw(PAGE0_HTE, EWRK3_PIR1);
- for (i=0; i<(HASH_TABLE_LEN >> 3); i++) {
- tmp.addr[i] = inb(EWRK3_DATA);
- }
- } else {
- outb(0, EWRK3_MPR);
- memcpy_fromio(tmp.addr, (char *)(lp->shmem_base + PAGE0_HTE), (HASH_TABLE_LEN >> 3));
- }
- ioc->len = (HASH_TABLE_LEN >> 3);
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
- lp->lock = 0; /* Unlock the page register */
-
- break;
- case EWRK3_SET_MCA: /* Set a multicast address */
- if (suser()) {
- if (!(status=verify_area(VERIFY_READ, ioc->data, ETH_ALEN*ioc->len))) {
- copy_from_user(tmp.addr, ioc->data, ETH_ALEN * ioc->len);
- set_multicast_list(dev);
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_CLR_MCA: /* Clear all multicast addresses */
- if (suser()) {
- set_multicast_list(dev);
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_MCA_EN: /* Enable multicast addressing */
- if (suser()) {
- csr = inb(EWRK3_CSR);
- csr |= CSR_MCE;
- csr &= ~CSR_PME;
- outb(csr, EWRK3_CSR);
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_GET_STATS: /* Get the driver statistics */
- cli();
- ioc->len = sizeof(lp->pktStats);
- if (!(status=verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, &lp->pktStats, ioc->len);
- }
- sti();
-
- break;
- case EWRK3_CLR_STATS: /* Zero out the driver statistics */
- if (suser()) {
- cli();
- memset(&lp->pktStats, 0, sizeof(lp->pktStats));
- sti();
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_GET_CSR: /* Get the CSR Register contents */
- tmp.addr[0] = inb(EWRK3_CSR);
- ioc->len = 1;
- if (!(status=verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
-
- break;
- case EWRK3_SET_CSR: /* Set the CSR Register contents */
- if (suser()) {
- if (!(status=verify_area(VERIFY_READ, ioc->data, 1))) {
- copy_from_user(tmp.addr, ioc->data, 1);
- outb(tmp.addr[0], EWRK3_CSR);
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_GET_EEPROM: /* Get the EEPROM contents */
- if (suser()) {
- for (i=0; i<(EEPROM_MAX>>1); i++) {
- tmp.val[i] = (short)Read_EEPROM(iobase, i);
- }
- i = EEPROM_MAX;
- tmp.addr[i++] = inb(EWRK3_CMR); /* Config/Management Reg. */
- for (j=0;j<ETH_ALEN;j++) {
- tmp.addr[i++] = inb(EWRK3_PAR0 + j);
- }
- ioc->len = EEPROM_MAX + 1 + ETH_ALEN;
- if (!(status=verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_SET_EEPROM: /* Set the EEPROM contents */
- if (suser()) {
- if (!(status=verify_area(VERIFY_READ, ioc->data, EEPROM_MAX))) {
- copy_from_user(tmp.addr, ioc->data, EEPROM_MAX);
- for (i=0; i<(EEPROM_MAX>>1); i++) {
- Write_EEPROM(tmp.val[i], iobase, i);
- }
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_GET_CMR: /* Get the CMR Register contents */
- tmp.addr[0] = inb(EWRK3_CMR);
- ioc->len = 1;
- if (!(status=verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
-
- break;
- case EWRK3_SET_TX_CUT_THRU: /* Set TX cut through mode */
- if (suser()) {
- lp->txc = 1;
- } else {
- status = -EPERM;
- }
-
- break;
- case EWRK3_CLR_TX_CUT_THRU: /* Clear TX cut through mode */
- if (suser()) {
- lp->txc = 0;
- } else {
- status = -EPERM;
- }
-
- break;
- default:
- status = -EOPNOTSUPP;
- }
+ break;
+ case EWRK3_SET_PROM: /* Set Promiscuous Mode */
+ if (suser()) {
+ csr = inb(EWRK3_CSR);
+ csr |= CSR_PME;
+ csr &= ~CSR_MCE;
+ outb(csr, EWRK3_CSR);
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_CLR_PROM: /* Clear Promiscuous Mode */
+ if (suser()) {
+ csr = inb(EWRK3_CSR);
+ csr &= ~CSR_PME;
+ outb(csr, EWRK3_CSR);
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_SAY_BOO: /* Say "Boo!" to the kernel log file */
+ printk("%s: Boo!\n", dev->name);
+
+ break;
+ case EWRK3_GET_MCA: /* Get the multicast address table */
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ while (test_and_set_bit(0, (void *) &lp->lock) != 0); /* Wait for lock to free */
+ if (lp->shmem_length == IO_ONLY) {
+ outb(0, EWRK3_IOPR);
+ outw(PAGE0_HTE, EWRK3_PIR1);
+ for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) {
+ tmp.addr[i] = inb(EWRK3_DATA);
+ }
+ } else {
+ outb(0, EWRK3_MPR);
+ memcpy_fromio(tmp.addr, (char *) (lp->shmem_base + PAGE0_HTE), (HASH_TABLE_LEN >> 3));
+ }
+ ioc->len = (HASH_TABLE_LEN >> 3);
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ lp->lock = 0; /* Unlock the page register */
+
+ break;
+ case EWRK3_SET_MCA: /* Set a multicast address */
+ if (suser()) {
+ if (!(status = verify_area(VERIFY_READ, ioc->data, ETH_ALEN * ioc->len))) {
+ copy_from_user(tmp.addr, ioc->data, ETH_ALEN * ioc->len);
+ set_multicast_list(dev);
+ }
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_CLR_MCA: /* Clear all multicast addresses */
+ if (suser()) {
+ set_multicast_list(dev);
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_MCA_EN: /* Enable multicast addressing */
+ if (suser()) {
+ csr = inb(EWRK3_CSR);
+ csr |= CSR_MCE;
+ csr &= ~CSR_PME;
+ outb(csr, EWRK3_CSR);
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_GET_STATS: /* Get the driver statistics */
+ cli();
+ ioc->len = sizeof(lp->pktStats);
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, &lp->pktStats, ioc->len);
+ }
+ sti();
+
+ break;
+ case EWRK3_CLR_STATS: /* Zero out the driver statistics */
+ if (suser()) {
+ cli();
+ memset(&lp->pktStats, 0, sizeof(lp->pktStats));
+ sti();
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_GET_CSR: /* Get the CSR Register contents */
+ tmp.addr[0] = inb(EWRK3_CSR);
+ ioc->len = 1;
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ break;
+ case EWRK3_SET_CSR: /* Set the CSR Register contents */
+ if (suser()) {
+ if (!(status = verify_area(VERIFY_READ, ioc->data, 1))) {
+ copy_from_user(tmp.addr, ioc->data, 1);
+ outb(tmp.addr[0], EWRK3_CSR);
+ }
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_GET_EEPROM: /* Get the EEPROM contents */
+ if (suser()) {
+ for (i = 0; i < (EEPROM_MAX >> 1); i++) {
+ tmp.val[i] = (short) Read_EEPROM(iobase, i);
+ }
+ i = EEPROM_MAX;
+ tmp.addr[i++] = inb(EWRK3_CMR); /* Config/Management Reg. */
+ for (j = 0; j < ETH_ALEN; j++) {
+ tmp.addr[i++] = inb(EWRK3_PAR0 + j);
+ }
+ ioc->len = EEPROM_MAX + 1 + ETH_ALEN;
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_SET_EEPROM: /* Set the EEPROM contents */
+ if (suser()) {
+ if (!(status = verify_area(VERIFY_READ, ioc->data, EEPROM_MAX))) {
+ copy_from_user(tmp.addr, ioc->data, EEPROM_MAX);
+ for (i = 0; i < (EEPROM_MAX >> 1); i++) {
+ Write_EEPROM(tmp.val[i], iobase, i);
+ }
+ }
+ } else {
+ status = -EPERM;
+ }
- return status;
+ break;
+ case EWRK3_GET_CMR: /* Get the CMR Register contents */
+ tmp.addr[0] = inb(EWRK3_CMR);
+ ioc->len = 1;
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ break;
+ case EWRK3_SET_TX_CUT_THRU: /* Set TX cut through mode */
+ if (suser()) {
+ lp->txc = 1;
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case EWRK3_CLR_TX_CUT_THRU: /* Clear TX cut through mode */
+ if (suser()) {
+ lp->txc = 0;
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ default:
+ status = -EOPNOTSUPP;
+ }
+
+ return status;
}
#ifdef MODULE
-static char devicename[9] = { 0, };
-static struct device thisEthwrk = {
- devicename, /* device name is inserted by /linux/drivers/net/net_init.c */
- 0, 0, 0, 0,
- 0x300, 5, /* I/O address, IRQ */
- 0, 0, 0, NULL, ewrk3_probe };
+static char devicename[9] =
+{0,};
+static struct device thisEthwrk =
+{
+ devicename, /* device name is inserted by /linux/drivers/net/net_init.c */
+ 0, 0, 0, 0,
+ 0x300, 5, /* I/O address, IRQ */
+ 0, 0, 0, NULL, ewrk3_probe};
-static int io=0x300; /* <--- EDIT THESE LINES FOR YOUR CONFIGURATION */
-static int irq=5; /* or use the insmod io= irq= options */
+static int io = 0x300; /* <--- EDIT THESE LINES FOR YOUR CONFIGURATION */
+static int irq = 5; /* or use the insmod io= irq= options */
MODULE_PARM(io, "i");
MODULE_PARM(irq, "i");
-int
-init_module(void)
+int init_module(void)
{
- thisEthwrk.base_addr=io;
- thisEthwrk.irq=irq;
- if (register_netdev(&thisEthwrk) != 0)
- return -EIO;
- return 0;
+ thisEthwrk.base_addr = io;
+ thisEthwrk.irq = irq;
+ if (register_netdev(&thisEthwrk) != 0)
+ return -EIO;
+ return 0;
}
-void
-cleanup_module(void)
+void cleanup_module(void)
{
- if (thisEthwrk.priv) {
- kfree(thisEthwrk.priv);
- thisEthwrk.priv = NULL;
- }
- thisEthwrk.irq = 0;
+ if (thisEthwrk.priv) {
+ kfree(thisEthwrk.priv);
+ thisEthwrk.priv = NULL;
+ }
+ thisEthwrk.irq = 0;
- unregister_netdev(&thisEthwrk);
- release_region(thisEthwrk.base_addr, EWRK3_TOTAL_SIZE);
+ unregister_netdev(&thisEthwrk);
+ release_region(thisEthwrk.base_addr, EWRK3_TOTAL_SIZE);
}
-#endif /* MODULE */
-
+#endif /* MODULE */
+
/*
* Local variables:
* compile-command: "gcc -D__KERNEL__ -I/linux/include -Wall -Wstrict-prototypes -fomit-frame-pointer -fno-strength-reduce -malign-loops=2 -malign-jumps=2 -malign-functions=2 -O2 -m486 -c ewrk3.c"
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen, slshen@lbl.gov