patch-2.1.67 linux/drivers/net/depca.c
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- Lines: 3484
- Date:
Sat Nov 29 10:33:19 1997
- Orig file:
v2.1.66/linux/drivers/net/depca.c
- Orig date:
Mon Nov 3 13:04:26 1997
diff -u --recursive --new-file v2.1.66/linux/drivers/net/depca.c linux/drivers/net/depca.c
@@ -1,210 +1,210 @@
/* depca.c: A DIGITAL DEPCA & EtherWORKS ethernet driver for linux.
- Written 1994, 1995 by David C. Davies.
+ Written 1994, 1995 by David C. Davies.
- Copyright 1994 David C. Davies
- and
- United States Government
- (as represented by the Director, National Security Agency).
-
- Copyright 1995 Digital Equipment Corporation.
-
-
- 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 DEPCA and EtherWORKS ethernet cards:
-
- DEPCA (the original)
- DE100
- DE101
- DE200 Turbo
- DE201 Turbo
- DE202 Turbo (TP BNC)
- DE210
- DE422 (EISA)
-
- The driver has been tested on DE100, DE200 and DE202 cards in a
- relatively busy network. The DE422 has been tested a little.
-
- This driver will NOT work for the DE203, DE204 and DE205 series of
- cards, since they have a new custom ASIC in place of the AMD LANCE
- chip. See the 'ewrk3.c' driver in the Linux source tree for running
- those cards.
-
- I have benchmarked the driver with a DE100 at 595kB/s to (542kB/s from)
- a DECstation 5000/200.
-
- The author may be reached at davies@maniac.ultranet.com
-
- =========================================================================
-
- The driver was originally based on the 'lance.c' driver from Donald
- Becker which is included with the standard driver distribution for
- linux. V0.4 is a complete re-write with only the kernel interface
- remaining from the original code.
-
- 1) Lance.c code in /linux/drivers/net/
- 2) "Ethernet/IEEE 802.3 Family. 1992 World Network Data Book/Handbook",
- AMD, 1992 [(800) 222-9323].
- 3) "Am79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE)",
- AMD, Pub. #17881, May 1993.
- 4) "Am79C960 PCnet-ISA(tm), Single-Chip Ethernet Controller for ISA",
- AMD, Pub. #16907, May 1992
- 5) "DEC EtherWORKS LC Ethernet Controller Owners Manual",
- Digital Equipment corporation, 1990, Pub. #EK-DE100-OM.003
- 6) "DEC EtherWORKS Turbo Ethernet Controller Owners Manual",
- Digital Equipment corporation, 1990, Pub. #EK-DE200-OM.003
- 7) "DEPCA Hardware Reference Manual", Pub. #EK-DEPCA-PR
- Digital Equipment Corporation, 1989
- 8) "DEC EtherWORKS Turbo_(TP BNC) Ethernet Controller Owners Manual",
- Digital Equipment corporation, 1991, Pub. #EK-DE202-OM.001
-
-
- Peter Bauer's depca.c (V0.5) was referred to when debugging V0.1 of this
- driver.
-
- The original DEPCA card requires that the ethernet ROM address counter
- be enabled to count and has an 8 bit NICSR. The ROM counter enabling is
- only done when a 0x08 is read as the first address octet (to minimise
- the chances of writing over some other hardware's I/O register). The
- NICSR accesses have been changed to byte accesses for all the cards
- supported by this driver, since there is only one useful bit in the MSB
- (remote boot timeout) and it is not used. Also, there is a maximum of
- only 48kB network RAM for this card. My thanks to Torbjorn Lindh for
- help debugging all this (and holding my feet to the fire until I got it
- right).
-
- The DE200 series boards have on-board 64kB RAM for use as a shared
- memory network buffer. Only the DE100 cards make use of a 2kB buffer
- mode which has not been implemented in this driver (only the 32kB and
- 64kB modes are supported [16kB/48kB for the original DEPCA]).
-
- At the most only 2 DEPCA cards can be supported on the ISA bus because
- there is only provision for two I/O base addresses on each card (0x300
- and 0x200). The I/O address is detected by searching for a byte sequence
- in the Ethernet station address PROM at the expected I/O address for the
- Ethernet PROM. The shared memory base address is 'autoprobed' by
- looking for the self test PROM and detecting the card name. When a
- second DEPCA is detected, information is placed in the base_addr
- variable of the next device structure (which is created if necessary),
- thus enabling ethif_probe initialization for the device. More than 2
- EISA cards can be supported, but care will be needed assigning the
- shared memory to ensure that each slot has the correct IRQ, I/O address
- and shared memory address assigned.
-
- ************************************************************************
-
- NOTE: If you are using two ISA DEPCAs, it is important that you assign
- the base memory addresses correctly. The driver autoprobes I/O 0x300
- then 0x200. The base memory address for the first device must be less
- than that of the second so that the auto probe will correctly assign the
- I/O and memory addresses on the same card. I can't think of a way to do
- this unambiguously at the moment, since there is nothing on the cards to
- tie I/O and memory information together.
-
- I am unable to test 2 cards together for now, so this code is
- unchecked. All reports, good or bad, are welcome.
-
- ************************************************************************
-
- The board IRQ setting must be at an unused IRQ which is auto-probed
- using Donald Becker's autoprobe routines. DEPCA and DE100 board IRQs are
- {2,3,4,5,7}, whereas the DE200 is at {5,9,10,11,15}. Note that IRQ2 is
- really IRQ9 in machines with 16 IRQ lines.
-
- 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 added. 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 depca.c from the /linux/drivers/net directory to your favourite
- temporary directory.
- 2) if you wish, edit the source code near line 1530 to reflect the I/O
- address and IRQ you're using (see also 5).
- 3) compile depca.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 depca configuration turned off and reboot.
- 5) insmod depca.o [irq=7] [io=0x200] [mem=0xd0000] [adapter_name=DE100]
- [Alan Cox: Changed the code to allow command line irq/io assignments]
- [Dave Davies: Changed the code to allow command line mem/name
- assignments]
- 6) run the net startup bits for your 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 depca'.
-
- To assign a base memory address for the shared memory when running as a
- loadable module, see 5 above. To include the adapter name (if you have
- no PROM but know the card name) also see 5 above. Note that this last
- option will not work with kernel built-in depca's.
-
- The shared memory assignment for a loadable module makes sense to avoid
- the 'memory autoprobe' picking the wrong shared memory (for the case of
- 2 depca's in a PC).
-
-
- TO DO:
- ------
-
-
- Revision History
- ----------------
-
- Version Date Description
-
- 0.1 25-jan-94 Initial writing.
- 0.2 27-jan-94 Added LANCE TX hardware buffer chaining.
- 0.3 1-feb-94 Added multiple DEPCA support.
- 0.31 4-feb-94 Added DE202 recognition.
- 0.32 19-feb-94 Tidy up. Improve multi-DEPCA support.
- 0.33 25-feb-94 Fix DEPCA ethernet ROM counter enable.
- Add jabber packet fix from murf@perftech.com
- and becker@super.org
- 0.34 7-mar-94 Fix DEPCA max network memory RAM & NICSR access.
- 0.35 8-mar-94 Added DE201 recognition. Tidied up.
- 0.351 30-apr-94 Added EISA support. Added DE422 recognition.
- 0.36 16-may-94 DE422 fix released.
- 0.37 22-jul-94 Added MODULE support
- 0.38 15-aug-94 Added DBR ROM switch in depca_close().
- Multi DEPCA bug fix.
- 0.38axp 15-sep-94 Special version for Alpha AXP Linux V1.0.
- 0.381 12-dec-94 Added DE101 recognition, fix multicast bug.
- 0.382 9-feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
- 0.383 22-feb-95 Fix for conflict with VESA SCSI reported by
- <stromain@alf.dec.com>
- 0.384 17-mar-95 Fix a ring full bug reported by <bkm@star.rl.ac.uk>
- 0.385 3-apr-95 Fix a recognition bug reported by
- <ryan.niemi@lastfrontier.com>
- 0.386 21-apr-95 Fix the last fix...sorry, must be galloping senility
- 0.40 25-May-95 Rewrite for portability & updated.
- ALPHA support from <jestabro@amt.tay1.dec.com>
- 0.41 26-Jun-95 Added verify_area() calls in depca_ioctl() from
- suggestion by <heiko@colossus.escape.de>
- 0.42 27-Dec-95 Add 'mem' shared memory assignment for loadable
- modules.
- Add 'adapter_name' for loadable modules when no PROM.
- Both above from a suggestion by
- <pchen@woodruffs121.residence.gatech.edu>.
- Add new multicasting code.
- 0.421 22-Apr-96 Fix alloc_device() bug <jari@markkus2.fimr.fi>
- 0.422 29-Apr-96 Fix depca_hw_init() bug <jari@markkus2.fimr.fi>
- 0.423 7-Jun-96 Fix module load bug <kmg@barco.be>
- 0.43 16-Aug-96 Update alloc_device() to conform to de4x5.c
+ Copyright 1994 David C. Davies
+ and
+ United States Government
+ (as represented by the Director, National Security Agency).
+
+ Copyright 1995 Digital Equipment Corporation.
+
+
+ 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 DEPCA and EtherWORKS ethernet cards:
+
+ DEPCA (the original)
+ DE100
+ DE101
+ DE200 Turbo
+ DE201 Turbo
+ DE202 Turbo (TP BNC)
+ DE210
+ DE422 (EISA)
+
+ The driver has been tested on DE100, DE200 and DE202 cards in a
+ relatively busy network. The DE422 has been tested a little.
+
+ This driver will NOT work for the DE203, DE204 and DE205 series of
+ cards, since they have a new custom ASIC in place of the AMD LANCE
+ chip. See the 'ewrk3.c' driver in the Linux source tree for running
+ those cards.
+
+ I have benchmarked the driver with a DE100 at 595kB/s to (542kB/s from)
+ a DECstation 5000/200.
+
+ The author may be reached at davies@maniac.ultranet.com
+
+ =========================================================================
+
+ The driver was originally based on the 'lance.c' driver from Donald
+ Becker which is included with the standard driver distribution for
+ linux. V0.4 is a complete re-write with only the kernel interface
+ remaining from the original code.
+
+ 1) Lance.c code in /linux/drivers/net/
+ 2) "Ethernet/IEEE 802.3 Family. 1992 World Network Data Book/Handbook",
+ AMD, 1992 [(800) 222-9323].
+ 3) "Am79C90 CMOS Local Area Network Controller for Ethernet (C-LANCE)",
+ AMD, Pub. #17881, May 1993.
+ 4) "Am79C960 PCnet-ISA(tm), Single-Chip Ethernet Controller for ISA",
+ AMD, Pub. #16907, May 1992
+ 5) "DEC EtherWORKS LC Ethernet Controller Owners Manual",
+ Digital Equipment corporation, 1990, Pub. #EK-DE100-OM.003
+ 6) "DEC EtherWORKS Turbo Ethernet Controller Owners Manual",
+ Digital Equipment corporation, 1990, Pub. #EK-DE200-OM.003
+ 7) "DEPCA Hardware Reference Manual", Pub. #EK-DEPCA-PR
+ Digital Equipment Corporation, 1989
+ 8) "DEC EtherWORKS Turbo_(TP BNC) Ethernet Controller Owners Manual",
+ Digital Equipment corporation, 1991, Pub. #EK-DE202-OM.001
+
+
+ Peter Bauer's depca.c (V0.5) was referred to when debugging V0.1 of this
+ driver.
+
+ The original DEPCA card requires that the ethernet ROM address counter
+ be enabled to count and has an 8 bit NICSR. The ROM counter enabling is
+ only done when a 0x08 is read as the first address octet (to minimise
+ the chances of writing over some other hardware's I/O register). The
+ NICSR accesses have been changed to byte accesses for all the cards
+ supported by this driver, since there is only one useful bit in the MSB
+ (remote boot timeout) and it is not used. Also, there is a maximum of
+ only 48kB network RAM for this card. My thanks to Torbjorn Lindh for
+ help debugging all this (and holding my feet to the fire until I got it
+ right).
+
+ The DE200 series boards have on-board 64kB RAM for use as a shared
+ memory network buffer. Only the DE100 cards make use of a 2kB buffer
+ mode which has not been implemented in this driver (only the 32kB and
+ 64kB modes are supported [16kB/48kB for the original DEPCA]).
+
+ At the most only 2 DEPCA cards can be supported on the ISA bus because
+ there is only provision for two I/O base addresses on each card (0x300
+ and 0x200). The I/O address is detected by searching for a byte sequence
+ in the Ethernet station address PROM at the expected I/O address for the
+ Ethernet PROM. The shared memory base address is 'autoprobed' by
+ looking for the self test PROM and detecting the card name. When a
+ second DEPCA is detected, information is placed in the base_addr
+ variable of the next device structure (which is created if necessary),
+ thus enabling ethif_probe initialization for the device. More than 2
+ EISA cards can be supported, but care will be needed assigning the
+ shared memory to ensure that each slot has the correct IRQ, I/O address
+ and shared memory address assigned.
+
+ ************************************************************************
+
+ NOTE: If you are using two ISA DEPCAs, it is important that you assign
+ the base memory addresses correctly. The driver autoprobes I/O 0x300
+ then 0x200. The base memory address for the first device must be less
+ than that of the second so that the auto probe will correctly assign the
+ I/O and memory addresses on the same card. I can't think of a way to do
+ this unambiguously at the moment, since there is nothing on the cards to
+ tie I/O and memory information together.
+
+ I am unable to test 2 cards together for now, so this code is
+ unchecked. All reports, good or bad, are welcome.
+
+ ************************************************************************
+
+ The board IRQ setting must be at an unused IRQ which is auto-probed
+ using Donald Becker's autoprobe routines. DEPCA and DE100 board IRQs are
+ {2,3,4,5,7}, whereas the DE200 is at {5,9,10,11,15}. Note that IRQ2 is
+ really IRQ9 in machines with 16 IRQ lines.
+
+ 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 added. 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 depca.c from the /linux/drivers/net directory to your favourite
+ temporary directory.
+ 2) if you wish, edit the source code near line 1530 to reflect the I/O
+ address and IRQ you're using (see also 5).
+ 3) compile depca.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 depca configuration turned off and reboot.
+ 5) insmod depca.o [irq=7] [io=0x200] [mem=0xd0000] [adapter_name=DE100]
+ [Alan Cox: Changed the code to allow command line irq/io assignments]
+ [Dave Davies: Changed the code to allow command line mem/name
+ assignments]
+ 6) run the net startup bits for your 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 depca'.
+
+ To assign a base memory address for the shared memory when running as a
+ loadable module, see 5 above. To include the adapter name (if you have
+ no PROM but know the card name) also see 5 above. Note that this last
+ option will not work with kernel built-in depca's.
+
+ The shared memory assignment for a loadable module makes sense to avoid
+ the 'memory autoprobe' picking the wrong shared memory (for the case of
+ 2 depca's in a PC).
+
+
+ TO DO:
+ ------
+
+
+ Revision History
+ ----------------
+
+ Version Date Description
+
+ 0.1 25-jan-94 Initial writing.
+ 0.2 27-jan-94 Added LANCE TX hardware buffer chaining.
+ 0.3 1-feb-94 Added multiple DEPCA support.
+ 0.31 4-feb-94 Added DE202 recognition.
+ 0.32 19-feb-94 Tidy up. Improve multi-DEPCA support.
+ 0.33 25-feb-94 Fix DEPCA ethernet ROM counter enable.
+ Add jabber packet fix from murf@perftech.com
+ and becker@super.org
+ 0.34 7-mar-94 Fix DEPCA max network memory RAM & NICSR access.
+ 0.35 8-mar-94 Added DE201 recognition. Tidied up.
+ 0.351 30-apr-94 Added EISA support. Added DE422 recognition.
+ 0.36 16-may-94 DE422 fix released.
+ 0.37 22-jul-94 Added MODULE support
+ 0.38 15-aug-94 Added DBR ROM switch in depca_close().
+ Multi DEPCA bug fix.
+ 0.38axp 15-sep-94 Special version for Alpha AXP Linux V1.0.
+ 0.381 12-dec-94 Added DE101 recognition, fix multicast bug.
+ 0.382 9-feb-95 Fix recognition bug reported by <bkm@star.rl.ac.uk>.
+ 0.383 22-feb-95 Fix for conflict with VESA SCSI reported by
+ <stromain@alf.dec.com>
+ 0.384 17-mar-95 Fix a ring full bug reported by <bkm@star.rl.ac.uk>
+ 0.385 3-apr-95 Fix a recognition bug reported by
+ <ryan.niemi@lastfrontier.com>
+ 0.386 21-apr-95 Fix the last fix...sorry, must be galloping senility
+ 0.40 25-May-95 Rewrite for portability & updated.
+ ALPHA support from <jestabro@amt.tay1.dec.com>
+ 0.41 26-Jun-95 Added verify_area() calls in depca_ioctl() from
+ suggestion by <heiko@colossus.escape.de>
+ 0.42 27-Dec-95 Add 'mem' shared memory assignment for loadable
+ modules.
+ Add 'adapter_name' for loadable modules when no PROM.
+ Both above from a suggestion by
+ <pchen@woodruffs121.residence.gatech.edu>.
+ Add new multicasting code.
+ 0.421 22-Apr-96 Fix alloc_device() bug <jari@markkus2.fimr.fi>
+ 0.422 29-Apr-96 Fix depca_hw_init() bug <jari@markkus2.fimr.fi>
+ 0.423 7-Jun-96 Fix module load bug <kmg@barco.be>
+ 0.43 16-Aug-96 Update alloc_device() to conform to de4x5.c
- =========================================================================
-*/
+ =========================================================================
+ */
static const char *version = "depca.c:v0.43 96/8/16 davies@maniac.ultranet.com\n";
@@ -242,1643 +242,1650 @@
static int depca_debug = 1;
#endif
-#define DEPCA_NDA 0xffe0 /* No Device Address */
+#define DEPCA_NDA 0xffe0 /* No Device Address */
/*
-** Ethernet PROM defines
-*/
+ ** Ethernet PROM defines
+ */
#define PROBE_LENGTH 32
#define ETH_PROM_SIG 0xAA5500FFUL
/*
-** Set the number of Tx and Rx buffers. Ensure that the memory requested
-** here is <= to the amount of shared memory set up by the board switches.
-** The number of descriptors MUST BE A POWER OF 2.
-**
-** total_memory = NUM_RX_DESC*(8+RX_BUFF_SZ) + NUM_TX_DESC*(8+TX_BUFF_SZ)
-*/
-#define NUM_RX_DESC 8 /* Number of RX descriptors */
-#define NUM_TX_DESC 8 /* Number of TX descriptors */
-#define RX_BUFF_SZ 1536 /* Buffer size for each Rx buffer */
-#define TX_BUFF_SZ 1536 /* Buffer size for each Tx buffer */
-
-#define CRC_POLYNOMIAL_BE 0x04c11db7UL /* Ethernet CRC, big endian */
-#define CRC_POLYNOMIAL_LE 0xedb88320UL /* Ethernet CRC, little endian */
-
-/*
-** EISA bus defines
-*/
-#define DEPCA_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
+ ** Set the number of Tx and Rx buffers. Ensure that the memory requested
+ ** here is <= to the amount of shared memory set up by the board switches.
+ ** The number of descriptors MUST BE A POWER OF 2.
+ **
+ ** total_memory = NUM_RX_DESC*(8+RX_BUFF_SZ) + NUM_TX_DESC*(8+TX_BUFF_SZ)
+ */
+#define NUM_RX_DESC 8 /* Number of RX descriptors */
+#define NUM_TX_DESC 8 /* Number of TX descriptors */
+#define RX_BUFF_SZ 1536 /* Buffer size for each Rx buffer */
+#define TX_BUFF_SZ 1536 /* Buffer size for each Tx buffer */
+
+#define CRC_POLYNOMIAL_BE 0x04c11db7UL /* Ethernet CRC, big endian */
+#define CRC_POLYNOMIAL_LE 0xedb88320UL /* Ethernet CRC, little endian */
+
+/*
+ ** EISA bus defines
+ */
+#define DEPCA_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
#define MAX_EISA_SLOTS 16
#define EISA_SLOT_INC 0x1000
/*
-** ISA Bus defines
-*/
+ ** ISA Bus defines
+ */
#define DEPCA_RAM_BASE_ADDRESSES {0xc0000,0xd0000,0xe0000,0x00000}
#define DEPCA_IO_PORTS {0x300, 0x200, 0}
#define DEPCA_TOTAL_SIZE 0x10
static short mem_chkd = 0;
/*
-** Name <-> Adapter mapping
-*/
+ ** Name <-> Adapter mapping
+ */
#define DEPCA_SIGNATURE {"DEPCA",\
"DE100","DE101",\
"DE200","DE201","DE202",\
"DE210",\
"DE422",\
""}
-static enum {DEPCA, de100, de101, de200, de201, de202, de210, de422, unknown} adapter;
+static enum {
+ DEPCA, de100, de101, de200, de201, de202, de210, de422, unknown
+} adapter;
/*
-** Miscellaneous info...
-*/
+ ** Miscellaneous info...
+ */
#define DEPCA_STRLEN 16
#define MAX_NUM_DEPCAS 2
/*
-** Memory Alignment. Each descriptor is 4 longwords long. To force a
-** particular alignment on the TX descriptor, adjust DESC_SKIP_LEN and
-** DESC_ALIGN. ALIGN aligns the start address of the private memory area
-** and hence the RX descriptor ring's first entry.
-*/
-#define ALIGN4 ((u_long)4 - 1) /* 1 longword align */
-#define ALIGN8 ((u_long)8 - 1) /* 2 longword (quadword) align */
-#define ALIGN ALIGN8 /* Keep the LANCE happy... */
+ ** Memory Alignment. Each descriptor is 4 longwords long. To force a
+ ** particular alignment on the TX descriptor, adjust DESC_SKIP_LEN and
+ ** DESC_ALIGN. ALIGN aligns the start address of the private memory area
+ ** and hence the RX descriptor ring's first entry.
+ */
+#define ALIGN4 ((u_long)4 - 1) /* 1 longword align */
+#define ALIGN8 ((u_long)8 - 1) /* 2 longword (quadword) align */
+#define ALIGN ALIGN8 /* Keep the LANCE happy... */
/*
-** The DEPCA Rx and Tx ring descriptors.
-*/
+ ** The DEPCA Rx and Tx ring descriptors.
+ */
struct depca_rx_desc {
- volatile s32 base;
- s16 buf_length; /* This length is negative 2's complement! */
- s16 msg_length; /* This length is "normal". */
+ volatile s32 base;
+ s16 buf_length; /* This length is negative 2's complement! */
+ s16 msg_length; /* This length is "normal". */
};
struct depca_tx_desc {
- volatile s32 base;
- s16 length; /* This length is negative 2's complement! */
- s16 misc; /* Errors and TDR info */
+ volatile s32 base;
+ s16 length; /* This length is negative 2's complement! */
+ s16 misc; /* Errors and TDR info */
};
-#define LA_MASK 0x0000ffff /* LANCE address mask for mapping network RAM
+#define LA_MASK 0x0000ffff /* LANCE address mask for mapping network RAM
to LANCE memory address space */
/*
-** The Lance initialization block, described in databook, in common memory.
-*/
+ ** The Lance initialization block, described in databook, in common memory.
+ */
struct depca_init {
- u16 mode; /* Mode register */
- u8 phys_addr[ETH_ALEN]; /* Physical ethernet address */
- u8 mcast_table[8]; /* Multicast Hash Table. */
- u32 rx_ring; /* Rx ring base pointer & ring length */
- u32 tx_ring; /* Tx ring base pointer & ring length */
+ u16 mode; /* Mode register */
+ u8 phys_addr[ETH_ALEN]; /* Physical ethernet address */
+ u8 mcast_table[8]; /* Multicast Hash Table. */
+ u32 rx_ring; /* Rx ring base pointer & ring length */
+ u32 tx_ring; /* Tx ring base pointer & ring length */
};
#define DEPCA_PKT_STAT_SZ 16
-#define DEPCA_PKT_BIN_SZ 128 /* Should be >=100 unless you
- increase DEPCA_PKT_STAT_SZ */
+#define DEPCA_PKT_BIN_SZ 128 /* Should be >=100 unless you
+ increase DEPCA_PKT_STAT_SZ */
struct depca_private {
- char devname[DEPCA_STRLEN]; /* Device Product String */
- char adapter_name[DEPCA_STRLEN];/* /proc/ioports string */
- char adapter; /* Adapter type */
- struct depca_rx_desc *rx_ring; /* Pointer to start of RX descriptor ring */
- struct depca_tx_desc *tx_ring; /* Pointer to start of TX descriptor ring */
- struct depca_init init_block;/* Shadow Initialization block */
- char *rx_memcpy[NUM_RX_DESC]; /* CPU virt address of sh'd memory buffs */
- char *tx_memcpy[NUM_TX_DESC]; /* CPU virt address of sh'd memory buffs */
- u_long bus_offset; /* (E)ISA bus address offset vs LANCE */
- u_long sh_mem; /* Physical start addr of shared mem area */
- u_long dma_buffs; /* LANCE Rx and Tx buffers start address. */
- int rx_new, tx_new; /* The next free ring entry */
- int rx_old, tx_old; /* The ring entries to be free()ed. */
- struct net_device_stats stats;
- struct { /* Private stats counters */
- u32 bins[DEPCA_PKT_STAT_SZ];
- u32 unicast;
- u32 multicast;
- u32 broadcast;
- u32 excessive_collisions;
- u32 tx_underruns;
- u32 excessive_underruns;
- } pktStats;
- int txRingMask; /* TX ring mask */
- int rxRingMask; /* RX ring mask */
- s32 rx_rlen; /* log2(rxRingMask+1) for the descriptors */
- s32 tx_rlen; /* log2(txRingMask+1) for the descriptors */
+ char devname[DEPCA_STRLEN]; /* Device Product String */
+ char adapter_name[DEPCA_STRLEN]; /* /proc/ioports string */
+ char adapter; /* Adapter type */
+ struct depca_rx_desc *rx_ring; /* Pointer to start of RX descriptor ring */
+ struct depca_tx_desc *tx_ring; /* Pointer to start of TX descriptor ring */
+ struct depca_init init_block; /* Shadow Initialization block */
+ char *rx_memcpy[NUM_RX_DESC]; /* CPU virt address of sh'd memory buffs */
+ char *tx_memcpy[NUM_TX_DESC]; /* CPU virt address of sh'd memory buffs */
+ u_long bus_offset; /* (E)ISA bus address offset vs LANCE */
+ u_long sh_mem; /* Physical start addr of shared mem area */
+ u_long dma_buffs; /* LANCE Rx and Tx buffers start address. */
+ int rx_new, tx_new; /* The next free ring entry */
+ int rx_old, tx_old; /* The ring entries to be free()ed. */
+ struct net_device_stats stats;
+ struct { /* Private stats counters */
+ u32 bins[DEPCA_PKT_STAT_SZ];
+ u32 unicast;
+ u32 multicast;
+ u32 broadcast;
+ u32 excessive_collisions;
+ u32 tx_underruns;
+ u32 excessive_underruns;
+ } pktStats;
+ int txRingMask; /* TX ring mask */
+ int rxRingMask; /* RX ring mask */
+ s32 rx_rlen; /* log2(rxRingMask+1) for the descriptors */
+ s32 tx_rlen; /* log2(txRingMask+1) for the descriptors */
};
/*
-** The transmit ring full condition is described by the tx_old and tx_new
-** pointers by:
-** tx_old = tx_new Empty ring
-** tx_old = tx_new+1 Full ring
-** tx_old+txRingMask = tx_new Full ring (wrapped condition)
-*/
+ ** The transmit ring full condition is described by the tx_old and tx_new
+ ** pointers by:
+ ** tx_old = tx_new Empty ring
+ ** tx_old = tx_new+1 Full ring
+ ** tx_old+txRingMask = tx_new Full ring (wrapped condition)
+ */
#define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\
lp->tx_old+lp->txRingMask-lp->tx_new:\
lp->tx_old -lp->tx_new-1)
/*
-** Public Functions
-*/
-static int depca_open(struct device *dev);
-static int depca_start_xmit(struct sk_buff *skb, struct device *dev);
-static void depca_interrupt(int irq, void *dev_id, struct pt_regs * regs);
-static int depca_close(struct device *dev);
-static int depca_ioctl(struct device *dev, struct ifreq *rq, int cmd);
+ ** Public Functions
+ */
+static int depca_open(struct device *dev);
+static int depca_start_xmit(struct sk_buff *skb, struct device *dev);
+static void depca_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static int depca_close(struct device *dev);
+static int depca_ioctl(struct device *dev, struct ifreq *rq, int cmd);
static struct net_device_stats *depca_get_stats(struct device *dev);
-static void set_multicast_list(struct device *dev);
+static void set_multicast_list(struct device *dev);
/*
-** Private functions
-*/
-static int depca_hw_init(struct device *dev, u_long ioaddr);
-static void depca_init_ring(struct device *dev);
-static int depca_rx(struct device *dev);
-static int depca_tx(struct device *dev);
-
-static void LoadCSRs(struct device *dev);
-static int InitRestartDepca(struct device *dev);
-static void DepcaSignature(char *name, u_long paddr);
-static int DevicePresent(u_long ioaddr);
-static int get_hw_addr(struct device *dev);
-static int EISA_signature(char *name, s32 eisa_id);
-static void SetMulticastFilter(struct device *dev);
-static void isa_probe(struct device *dev, u_long iobase);
-static void eisa_probe(struct device *dev, u_long iobase);
+ ** Private functions
+ */
+static int depca_hw_init(struct device *dev, u_long ioaddr);
+static void depca_init_ring(struct device *dev);
+static int depca_rx(struct device *dev);
+static int depca_tx(struct device *dev);
+
+static void LoadCSRs(struct device *dev);
+static int InitRestartDepca(struct device *dev);
+static void DepcaSignature(char *name, u_long paddr);
+static int DevicePresent(u_long ioaddr);
+static int get_hw_addr(struct device *dev);
+static int EISA_signature(char *name, s32 eisa_id);
+static void SetMulticastFilter(struct device *dev);
+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 depca_dev_index(char *s);
-static struct device *insert_device(struct device *dev, u_long iobase, int (*init)(struct device *));
-static int load_packet(struct device *dev, struct sk_buff *skb);
-static void depca_dbg_open(struct device *dev);
+static int depca_dev_index(char *s);
+static struct device *insert_device(struct device *dev, u_long iobase, int (*init) (struct device *));
+static int load_packet(struct device *dev, struct sk_buff *skb);
+static void depca_dbg_open(struct device *dev);
#ifdef MODULE
-int init_module(void);
-void cleanup_module(void);
-static int autoprobed = 1, loading_module = 1;
-# else
-static u_char de1xx_irq[] __initdata = {2,3,4,5,7,9,0};
-static u_char de2xx_irq[] __initdata = {5,9,10,11,15,0};
-static u_char de422_irq[] __initdata = {5,9,10,11,0};
+int init_module(void);
+void cleanup_module(void);
+static int autoprobed = 1, loading_module = 1;
+#else
+static u_char de1xx_irq[] __initdata =
+{2, 3, 4, 5, 7, 9, 0};
+static u_char de2xx_irq[] __initdata =
+{5, 9, 10, 11, 15, 0};
+static u_char de422_irq[] __initdata =
+{5, 9, 10, 11, 0};
static u_char *depca_irq;
-static int autoprobed = 0, loading_module = 0;
-#endif /* MODULE */
+static int autoprobed = 0, loading_module = 0;
+#endif /* MODULE */
-static char name[DEPCA_STRLEN];
-static int num_depcas = 0, num_eth = 0;
-static int mem=0; /* For loadable module assignment
- use insmod mem=0x????? .... */
-static char *adapter_name = '\0'; /* If no PROM when loadable module
- use insmod adapter_name=DE??? ...
- */
+static char name[DEPCA_STRLEN];
+static int num_depcas = 0, num_eth = 0;
+static int mem = 0; /* For loadable module assignment
+ use insmod mem=0x????? .... */
+static char *adapter_name = '\0'; /* If no PROM when loadable module
+ use insmod adapter_name=DE??? ...
+ */
/*
-** Miscellaneous defines...
-*/
+ ** Miscellaneous defines...
+ */
#define STOP_DEPCA \
outw(CSR0, DEPCA_ADDR);\
outw(STOP, DEPCA_DATA)
-
+
__initfunc(int depca_probe(struct device *dev))
{
- int tmp = num_depcas, status = -ENODEV;
- u_long iobase = dev->base_addr;
+ int tmp = num_depcas, 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 {
- isa_probe(dev, iobase);
- eisa_probe(dev, iobase);
-
- if ((tmp == num_depcas) && (iobase != 0) && loading_module) {
- printk("%s: depca_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 {
+ isa_probe(dev, iobase);
+ eisa_probe(dev, iobase);
- return status;
+ if ((tmp == num_depcas) && (iobase != 0) && loading_module) {
+ printk("%s: depca_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;
}
__initfunc(static int
-depca_hw_init(struct device *dev, u_long ioaddr))
+ depca_hw_init(struct device *dev, u_long ioaddr))
{
- struct depca_private *lp;
- int i, j, offset, netRAM, mem_len, status=0;
- s16 nicsr;
- u_long mem_start=0, mem_base[] = DEPCA_RAM_BASE_ADDRESSES;
-
- STOP_DEPCA;
-
- nicsr = inb(DEPCA_NICSR);
- nicsr = ((nicsr & ~SHE & ~RBE & ~IEN) | IM);
- outb(nicsr, DEPCA_NICSR);
-
- if (inw(DEPCA_DATA) == STOP) {
- do {
- strcpy(name, (adapter_name ? adapter_name : ""));
- mem_start = (mem ? mem & 0xf0000 : mem_base[mem_chkd++]);
- DepcaSignature(name, mem_start);
- } while (!mem && mem_base[mem_chkd] && (adapter == unknown));
-
- if ((adapter != unknown) && mem_start) { /* found a DEPCA device */
- dev->base_addr = ioaddr;
-
- if ((ioaddr&0x0fff)==DEPCA_EISA_IO_PORTS) {/* EISA slot address */
- printk("%s: %s at 0x%04lx (EISA slot %d)",
- dev->name, name, ioaddr, (int)((ioaddr>>12)&0x0f));
- } else { /* ISA port address */
- printk("%s: %s at 0x%04lx", dev->name, name, ioaddr);
- }
-
- printk(", h/w address ");
- status = get_hw_addr(dev);
- for (i=0; i<ETH_ALEN - 1; i++) { /* get the ethernet address */
- printk("%2.2x:", dev->dev_addr[i]);
- }
- printk("%2.2x", dev->dev_addr[i]);
-
- if (status == 0) {
- /* Set up the maximum amount of network RAM(kB) */
- netRAM = ((adapter != DEPCA) ? 64 : 48);
- if ((nicsr & _128KB) && (adapter == de422)) netRAM = 128;
- offset = 0x0000;
-
- /* Shared Memory Base Address */
- if (nicsr & BUF) {
- offset = 0x8000; /* 32kbyte RAM offset*/
- nicsr &= ~BS; /* DEPCA RAM in top 32k */
- netRAM -= 32;
- }
- mem_start += offset; /* (E)ISA start address */
- if ((mem_len = (NUM_RX_DESC*(sizeof(struct depca_rx_desc)+RX_BUFF_SZ) +
- NUM_TX_DESC*(sizeof(struct depca_tx_desc)+TX_BUFF_SZ) +
- sizeof(struct depca_init))) <=
- (netRAM<<10)) {
- printk(",\n has %dkB RAM at 0x%.5lx", netRAM, mem_start);
-
- /* Enable the shadow RAM. */
- if (adapter != DEPCA) {
- nicsr |= SHE;
- outb(nicsr, DEPCA_NICSR);
- }
-
- /* Define the device private memory */
- dev->priv = (void *) kmalloc(sizeof(struct depca_private), GFP_KERNEL);
- if (dev->priv == NULL)
- return -ENOMEM;
- lp = (struct depca_private *)dev->priv;
- memset((char *)dev->priv, 0, sizeof(struct depca_private));
- lp->adapter = adapter;
- sprintf(lp->adapter_name,"%s (%s)", name, dev->name);
- request_region(ioaddr, DEPCA_TOTAL_SIZE, lp->adapter_name);
-
- /* Initialisation Block */
- lp->sh_mem = mem_start;
- mem_start += sizeof(struct depca_init);
-
- /* Tx & Rx descriptors (aligned to a quadword boundary) */
- mem_start = (mem_start + ALIGN) & ~ALIGN;
- lp->rx_ring = (struct depca_rx_desc *)mem_start;
-
- mem_start += (sizeof(struct depca_rx_desc) * NUM_RX_DESC);
- lp->tx_ring = (struct depca_tx_desc *)mem_start;
-
- mem_start += (sizeof(struct depca_tx_desc) * NUM_TX_DESC);
- lp->bus_offset = mem_start & 0x00ff0000;
- mem_start &= LA_MASK; /* LANCE re-mapped start address */
-
- lp->dma_buffs = mem_start;
-
- /* Finish initialising the ring information. */
- lp->rxRingMask = NUM_RX_DESC - 1;
- lp->txRingMask = NUM_TX_DESC - 1;
-
- /* Calculate Tx/Rx RLEN size for the descriptors. */
- for (i=0, j = lp->rxRingMask; j>0; i++) {
- j >>= 1;
- }
- lp->rx_rlen = (s32)(i << 29);
- for (i=0, j = lp->txRingMask; j>0; i++) {
- j >>= 1;
- }
- lp->tx_rlen = (s32)(i << 29);
-
- /* Load the initialisation block */
- depca_init_ring(dev);
-
- /* Initialise the control and status registers */
- LoadCSRs(dev);
-
- /* Enable DEPCA board interrupts for autoprobing */
- nicsr = ((nicsr & ~IM)|IEN);
- outb(nicsr, DEPCA_NICSR);
-
- /* 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) {
+ struct depca_private *lp;
+ int i, j, offset, netRAM, mem_len, status = 0;
+ s16 nicsr;
+ u_long mem_start = 0, mem_base[] = DEPCA_RAM_BASE_ADDRESSES;
+
+ STOP_DEPCA;
+
+ nicsr = inb(DEPCA_NICSR);
+ nicsr = ((nicsr & ~SHE & ~RBE & ~IEN) | IM);
+ outb(nicsr, DEPCA_NICSR);
+
+ if (inw(DEPCA_DATA) == STOP) {
+ do {
+ strcpy(name, (adapter_name ? adapter_name : ""));
+ mem_start = (mem ? mem & 0xf0000 : mem_base[mem_chkd++]);
+ DepcaSignature(name, mem_start);
+ } while (!mem && mem_base[mem_chkd] && (adapter == unknown));
+
+ if ((adapter != unknown) && mem_start) { /* found a DEPCA device */
+ dev->base_addr = ioaddr;
+
+ if ((ioaddr & 0x0fff) == DEPCA_EISA_IO_PORTS) { /* EISA slot address */
+ printk("%s: %s at 0x%04lx (EISA slot %d)",
+ dev->name, name, ioaddr, (int) ((ioaddr >> 12) & 0x0f));
+ } else { /* ISA port address */
+ printk("%s: %s at 0x%04lx", dev->name, name, ioaddr);
+ }
+
+ printk(", h/w address ");
+ status = get_hw_addr(dev);
+ for (i = 0; i < ETH_ALEN - 1; i++) { /* get the ethernet address */
+ printk("%2.2x:", dev->dev_addr[i]);
+ }
+ printk("%2.2x", dev->dev_addr[i]);
+
+ if (status == 0) {
+ /* Set up the maximum amount of network RAM(kB) */
+ netRAM = ((adapter != DEPCA) ? 64 : 48);
+ if ((nicsr & _128KB) && (adapter == de422))
+ netRAM = 128;
+ offset = 0x0000;
+
+ /* Shared Memory Base Address */
+ if (nicsr & BUF) {
+ offset = 0x8000; /* 32kbyte RAM offset */
+ nicsr &= ~BS; /* DEPCA RAM in top 32k */
+ netRAM -= 32;
+ }
+ mem_start += offset; /* (E)ISA start address */
+ if ((mem_len = (NUM_RX_DESC * (sizeof(struct depca_rx_desc) + RX_BUFF_SZ) +
+ NUM_TX_DESC * (sizeof(struct depca_tx_desc) + TX_BUFF_SZ) +
+ sizeof(struct depca_init))) <=
+ (netRAM << 10)) {
+ printk(",\n has %dkB RAM at 0x%.5lx", netRAM, mem_start);
+
+ /* Enable the shadow RAM. */
+ if (adapter != DEPCA) {
+ nicsr |= SHE;
+ outb(nicsr, DEPCA_NICSR);
+ }
+ /* Define the device private memory */
+ dev->priv = (void *) kmalloc(sizeof(struct depca_private), GFP_KERNEL);
+ if (dev->priv == NULL)
+ return -ENOMEM;
+ lp = (struct depca_private *) dev->priv;
+ memset((char *) dev->priv, 0, sizeof(struct depca_private));
+ lp->adapter = adapter;
+ sprintf(lp->adapter_name, "%s (%s)", name, dev->name);
+ request_region(ioaddr, DEPCA_TOTAL_SIZE, lp->adapter_name);
+
+ /* Initialisation Block */
+ lp->sh_mem = mem_start;
+ mem_start += sizeof(struct depca_init);
+
+ /* Tx & Rx descriptors (aligned to a quadword boundary) */
+ mem_start = (mem_start + ALIGN) & ~ALIGN;
+ lp->rx_ring = (struct depca_rx_desc *) mem_start;
+
+ mem_start += (sizeof(struct depca_rx_desc) * NUM_RX_DESC);
+ lp->tx_ring = (struct depca_tx_desc *) mem_start;
+
+ mem_start += (sizeof(struct depca_tx_desc) * NUM_TX_DESC);
+ lp->bus_offset = mem_start & 0x00ff0000;
+ mem_start &= LA_MASK; /* LANCE re-mapped start address */
+
+ lp->dma_buffs = mem_start;
+
+ /* Finish initialising the ring information. */
+ lp->rxRingMask = NUM_RX_DESC - 1;
+ lp->txRingMask = NUM_TX_DESC - 1;
+
+ /* Calculate Tx/Rx RLEN size for the descriptors. */
+ for (i = 0, j = lp->rxRingMask; j > 0; i++) {
+ j >>= 1;
+ }
+ lp->rx_rlen = (s32) (i << 29);
+ for (i = 0, j = lp->txRingMask; j > 0; i++) {
+ j >>= 1;
+ }
+ lp->tx_rlen = (s32) (i << 29);
+
+ /* Load the initialisation block */
+ depca_init_ring(dev);
+
+ /* Initialise the control and status registers */
+ LoadCSRs(dev);
+
+ /* Enable DEPCA board interrupts for autoprobing */
+ nicsr = ((nicsr & ~IM) | IEN);
+ outb(nicsr, DEPCA_NICSR);
+
+ /* 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
- unsigned char irqnum;
- autoirq_setup(0);
+ unsigned char irqnum;
+ autoirq_setup(0);
- /* Assign the correct irq list */
- switch (lp->adapter) {
- case DEPCA:
- case de100:
- case de101:
- depca_irq = de1xx_irq;
- break;
- case de200:
- case de201:
- case de202:
- case de210:
- depca_irq = de2xx_irq;
- break;
- case de422:
- depca_irq = de422_irq;
- break;
- }
-
- /* Trigger an initialization just for the interrupt. */
- outw(INEA | INIT, DEPCA_DATA);
-
- irqnum = autoirq_report(1);
- if (!irqnum) {
- printk(" and failed to detect IRQ line.\n");
- status = -ENXIO;
- } else {
- for (dev->irq=0,i=0; (depca_irq[i]) && (!dev->irq); i++) {
- if (irqnum == depca_irq[i]) {
- dev->irq = irqnum;
- printk(" and uses IRQ%d.\n", dev->irq);
+ /* Assign the correct irq list */
+ switch (lp->adapter) {
+ case DEPCA:
+ case de100:
+ case de101:
+ depca_irq = de1xx_irq;
+ break;
+ case de200:
+ case de201:
+ case de202:
+ case de210:
+ depca_irq = de2xx_irq;
+ break;
+ case de422:
+ depca_irq = de422_irq;
+ break;
+ }
+
+ /* Trigger an initialization just for the interrupt. */
+ outw(INEA | INIT, DEPCA_DATA);
+
+ irqnum = autoirq_report(1);
+ if (!irqnum) {
+ printk(" and failed to detect IRQ line.\n");
+ status = -ENXIO;
+ } else {
+ for (dev->irq = 0, i = 0; (depca_irq[i]) && (!dev->irq); i++) {
+ if (irqnum == depca_irq[i]) {
+ dev->irq = irqnum;
+ printk(" and uses IRQ%d.\n", dev->irq);
+ }
+ }
+
+ if (!dev->irq) {
+ printk(" but incorrect IRQ line detected.\n");
+ status = -ENXIO;
+ }
+ }
+#endif /* MODULE */
+ } else {
+ printk(" and assigned IRQ%d.\n", dev->irq);
+ }
+ if (status)
+ release_region(ioaddr, DEPCA_TOTAL_SIZE);
+ } else {
+ printk(",\n requests %dkB RAM: only %dkB is available!\n",
+ (mem_len >> 10), netRAM);
+ status = -ENXIO;
+ }
+ } else {
+ printk(" which has an Ethernet PROM CRC error.\n");
+ status = -ENXIO;
+ }
+ } else {
+ status = -ENXIO;
+ }
+ if (!status) {
+ if (depca_debug > 1) {
+ printk(version);
+ }
+ /* The DEPCA-specific entries in the device structure. */
+ dev->open = &depca_open;
+ dev->hard_start_xmit = &depca_start_xmit;
+ dev->stop = &depca_close;
+ dev->get_stats = &depca_get_stats;
+ dev->set_multicast_list = &set_multicast_list;
+ dev->do_ioctl = &depca_ioctl;
+
+ dev->mem_start = 0;
+
+ /* Fill in the generic field of the device structure. */
+ ether_setup(dev);
+ } else { /* Incorrectly initialised hardware */
+ if (dev->priv) {
+ kfree_s(dev->priv, sizeof(struct depca_private));
+ dev->priv = NULL;
+ }
}
- }
-
- if (!dev->irq) {
- printk(" but incorrect IRQ line detected.\n");
- status = -ENXIO;
- }
- }
-#endif /* MODULE */
- } else {
- printk(" and assigned IRQ%d.\n", dev->irq);
- }
- if (status) release_region(ioaddr, DEPCA_TOTAL_SIZE);
} else {
- printk(",\n requests %dkB RAM: only %dkB is available!\n",
- (mem_len>>10), netRAM);
- status = -ENXIO;
- }
- } else {
- printk(" which has an Ethernet PROM CRC error.\n");
- status = -ENXIO;
- }
- } else {
- status = -ENXIO;
- }
- if (!status) {
- if (depca_debug > 1) {
- printk(version);
- }
-
- /* The DEPCA-specific entries in the device structure. */
- dev->open = &depca_open;
- dev->hard_start_xmit = &depca_start_xmit;
- dev->stop = &depca_close;
- dev->get_stats = &depca_get_stats;
- dev->set_multicast_list = &set_multicast_list;
- dev->do_ioctl = &depca_ioctl;
-
- dev->mem_start = 0;
-
- /* Fill in the generic field of the device structure. */
- ether_setup(dev);
- } else { /* Incorrectly initialised hardware */
- if (dev->priv) {
- kfree_s(dev->priv, sizeof(struct depca_private));
- dev->priv = NULL;
- }
- }
- } else {
- status = -ENXIO;
- }
+ status = -ENXIO;
+ }
- return status;
+ return status;
}
-
-static int
-depca_open(struct device *dev)
+
+static int depca_open(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
- s16 nicsr;
- int status = 0;
-
- STOP_DEPCA;
- nicsr = inb(DEPCA_NICSR);
-
- /* Make sure the shadow RAM is enabled */
- if (adapter != DEPCA) {
- nicsr |= SHE;
- outb(nicsr, DEPCA_NICSR);
- }
-
- /* Re-initialize the DEPCA... */
- depca_init_ring(dev);
- LoadCSRs(dev);
-
- depca_dbg_open(dev);
-
- if (request_irq(dev->irq, &depca_interrupt, 0, lp->adapter_name, dev)) {
- printk("depca_open(): Requested IRQ%d is busy\n",dev->irq);
- status = -EAGAIN;
- } else {
-
- /* Enable DEPCA board interrupts and turn off LED */
- nicsr = ((nicsr & ~IM & ~LED)|IEN);
- outb(nicsr, DEPCA_NICSR);
- outw(CSR0,DEPCA_ADDR);
-
- dev->tbusy = 0;
- dev->interrupt = 0;
- dev->start = 1;
-
- status = InitRestartDepca(dev);
-
- if (depca_debug > 1){
- printk("CSR0: 0x%4.4x\n",inw(DEPCA_DATA));
- printk("nicsr: 0x%02x\n",inb(DEPCA_NICSR));
- }
- }
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
+ s16 nicsr;
+ int status = 0;
+
+ STOP_DEPCA;
+ nicsr = inb(DEPCA_NICSR);
+
+ /* Make sure the shadow RAM is enabled */
+ if (adapter != DEPCA) {
+ nicsr |= SHE;
+ outb(nicsr, DEPCA_NICSR);
+ }
+ /* Re-initialize the DEPCA... */
+ depca_init_ring(dev);
+ LoadCSRs(dev);
+
+ depca_dbg_open(dev);
+
+ if (request_irq(dev->irq, &depca_interrupt, 0, lp->adapter_name, dev)) {
+ printk("depca_open(): Requested IRQ%d is busy\n", dev->irq);
+ status = -EAGAIN;
+ } else {
- MOD_INC_USE_COUNT;
+ /* Enable DEPCA board interrupts and turn off LED */
+ nicsr = ((nicsr & ~IM & ~LED) | IEN);
+ outb(nicsr, DEPCA_NICSR);
+ outw(CSR0, DEPCA_ADDR);
+
+ dev->tbusy = 0;
+ dev->interrupt = 0;
+ dev->start = 1;
+
+ status = InitRestartDepca(dev);
+
+ if (depca_debug > 1) {
+ printk("CSR0: 0x%4.4x\n", inw(DEPCA_DATA));
+ printk("nicsr: 0x%02x\n", inb(DEPCA_NICSR));
+ }
+ }
+
+ MOD_INC_USE_COUNT;
- return status;
+ return status;
}
/* Initialize the lance Rx and Tx descriptor rings. */
-static void
-depca_init_ring(struct device *dev)
+static void depca_init_ring(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_int i;
- u_long p;
-
- /* Lock out other processes whilst setting up the hardware */
- set_bit(0, (void *)&dev->tbusy);
-
- lp->rx_new = lp->tx_new = 0;
- lp->rx_old = lp->tx_old = 0;
-
- /* Initialize the base addresses and length of each buffer in the ring */
- for (i = 0; i <= lp->rxRingMask; i++) {
- writel((p=lp->dma_buffs+i*RX_BUFF_SZ) | R_OWN, &lp->rx_ring[i].base);
- writew(-RX_BUFF_SZ, &lp->rx_ring[i].buf_length);
- lp->rx_memcpy[i]=(char *)(p+lp->bus_offset);
- }
- for (i = 0; i <= lp->txRingMask; i++) {
- writel((p=lp->dma_buffs+(i+lp->txRingMask+1)*TX_BUFF_SZ) & 0x00ffffff,
- &lp->tx_ring[i].base);
- lp->tx_memcpy[i]=(char *)(p+lp->bus_offset);
- }
-
- /* Set up the initialization block */
- lp->init_block.rx_ring = ((u32)((u_long)lp->rx_ring)&LA_MASK) | lp->rx_rlen;
- lp->init_block.tx_ring = ((u32)((u_long)lp->tx_ring)&LA_MASK) | lp->tx_rlen;
-
- SetMulticastFilter(dev);
-
- for (i = 0; i < ETH_ALEN; i++) {
- lp->init_block.phys_addr[i] = dev->dev_addr[i];
- }
-
- lp->init_block.mode = 0x0000; /* Enable the Tx and Rx */
-
- return;
-}
-
-/*
-** Writes a socket buffer to TX descriptor ring and starts transmission
-*/
-static int
-depca_start_xmit(struct sk_buff *skb, struct device *dev)
-{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
- int status = 0;
-
- /* Transmitter timeout, serious problems. */
- if (dev->tbusy) {
- int tickssofar = jiffies - dev->trans_start;
- if (tickssofar < 1*HZ) {
- status = -1;
- } else {
- printk("%s: transmit timed out, status %04x, resetting.\n",
- dev->name, inw(DEPCA_DATA));
-
- STOP_DEPCA;
- depca_init_ring(dev);
- LoadCSRs(dev);
- dev->interrupt = UNMASK_INTERRUPTS;
- dev->start = 1;
- dev->tbusy=0;
- dev->trans_start = jiffies;
- InitRestartDepca(dev);
- }
- return status;
- } else if (skb == NULL) {
- dev_tint(dev);
- } else if (skb->len > 0) {
- /* Enforce 1 process per h/w access */
- if (test_and_set_bit(0, (void*)&dev->tbusy) != 0) {
- printk("%s: Transmitter access conflict.\n", dev->name);
- status = -1;
- } else {
- if (TX_BUFFS_AVAIL) { /* Fill in a Tx ring entry */
- status = load_packet(dev, skb);
-
- if (!status) {
- /* Trigger an immediate send demand. */
- outw(CSR0, DEPCA_ADDR);
- outw(INEA | TDMD, DEPCA_DATA);
-
- dev->trans_start = jiffies;
- dev_kfree_skb(skb, FREE_WRITE);
- }
- if (TX_BUFFS_AVAIL) {
- dev->tbusy=0;
- }
- } else {
- status = -1;
- }
- }
- }
-
- return status;
-}
-
-/*
-** The DEPCA interrupt handler.
-*/
-static void
-depca_interrupt(int irq, void *dev_id, struct pt_regs * regs)
-{
- struct device *dev =dev_id;
- struct depca_private *lp;
- s16 csr0, nicsr;
- u_long ioaddr;
-
- if (dev == NULL) {
- printk ("depca_interrupt(): irq %d for unknown device.\n", irq);
- } else {
- lp = (struct depca_private *)dev->priv;
- ioaddr = dev->base_addr;
-
- if (dev->interrupt)
- printk("%s: Re-entering the interrupt handler.\n", dev->name);
-
- dev->interrupt = MASK_INTERRUPTS;
-
- /* mask the DEPCA board interrupts and turn on the LED */
- nicsr = inb(DEPCA_NICSR);
- nicsr |= (IM|LED);
- outb(nicsr, DEPCA_NICSR);
-
- outw(CSR0, DEPCA_ADDR);
- csr0 = inw(DEPCA_DATA);
-
- /* Acknowledge all of the current interrupt sources ASAP. */
- outw(csr0 & INTE, DEPCA_DATA);
-
- if (csr0 & RINT) /* Rx interrupt (packet arrived) */
- depca_rx(dev);
-
- if (csr0 & TINT) /* Tx interrupt (packet sent) */
- depca_tx(dev);
-
- if ((TX_BUFFS_AVAIL >= 0) && dev->tbusy) { /* any resources available? */
- dev->tbusy = 0; /* clear TX busy flag */
- mark_bh(NET_BH);
- }
-
- /* Unmask the DEPCA board interrupts and turn off the LED */
- nicsr = (nicsr & ~IM & ~LED);
- outb(nicsr, DEPCA_NICSR);
-
- dev->interrupt = UNMASK_INTERRUPTS;
- }
-
- return;
-}
-
-static int
-depca_rx(struct device *dev)
-{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- int i, entry;
- s32 status;
-
- for (entry=lp->rx_new;
- !(readl(&lp->rx_ring[entry].base) & R_OWN);
- entry=lp->rx_new){
- status = readl(&lp->rx_ring[entry].base) >> 16 ;
- if (status & R_STP) { /* Remember start of frame */
- lp->rx_old = entry;
- }
- if (status & R_ENP) { /* Valid frame status */
- if (status & R_ERR) { /* There was an error. */
- lp->stats.rx_errors++; /* Update the error stats. */
- if (status & R_FRAM) lp->stats.rx_frame_errors++;
- if (status & R_OFLO) lp->stats.rx_over_errors++;
- if (status & R_CRC) lp->stats.rx_crc_errors++;
- if (status & R_BUFF) lp->stats.rx_fifo_errors++;
- } else {
- short len, pkt_len = readw(&lp->rx_ring[entry].msg_length);
- struct sk_buff *skb;
-
- skb = dev_alloc_skb(pkt_len+2);
- if (skb != NULL) {
- unsigned char *buf;
- skb_reserve(skb,2); /* 16 byte align the IP header */
- buf = skb_put(skb,pkt_len);
- skb->dev = dev;
- if (entry < lp->rx_old) { /* Wrapped buffer */
- len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ;
- memcpy_fromio(buf, lp->rx_memcpy[lp->rx_old], len);
- memcpy_fromio(buf + len, lp->rx_memcpy[0], pkt_len-len);
- } else { /* Linear buffer */
- memcpy_fromio(buf, lp->rx_memcpy[lp->rx_old], 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<DEPCA_PKT_STAT_SZ-1; i++) {
- if (pkt_len < (i*DEPCA_PKT_BIN_SZ)) {
- lp->pktStats.bins[i]++;
- i = DEPCA_PKT_STAT_SZ;
- }
- }
- if (buf[0] & 0x01) { /* Multicast/Broadcast */
- if ((*(s16 *)&buf[0] == -1) &&
- (*(s16 *)&buf[2] == -1) &&
- (*(s16 *)&buf[4] == -1)) {
- lp->pktStats.broadcast++;
- } else {
- lp->pktStats.multicast++;
- }
- } else if ((*(s16 *)&buf[0] == *(s16 *)&dev->dev_addr[0]) &&
- (*(s16 *)&buf[2] == *(s16 *)&dev->dev_addr[2]) &&
- (*(s16 *)&buf[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((char *)&lp->pktStats, 0, sizeof(lp->pktStats));
- }
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_int i;
+ u_long p;
+
+ /* Lock out other processes whilst setting up the hardware */
+ set_bit(0, (void *) &dev->tbusy);
+
+ lp->rx_new = lp->tx_new = 0;
+ lp->rx_old = lp->tx_old = 0;
+
+ /* Initialize the base addresses and length of each buffer in the ring */
+ for (i = 0; i <= lp->rxRingMask; i++) {
+ writel((p = lp->dma_buffs + i * RX_BUFF_SZ) | R_OWN, &lp->rx_ring[i].base);
+ writew(-RX_BUFF_SZ, &lp->rx_ring[i].buf_length);
+ lp->rx_memcpy[i] = (char *) (p + lp->bus_offset);
+ }
+ for (i = 0; i <= lp->txRingMask; i++) {
+ writel((p = lp->dma_buffs + (i + lp->txRingMask + 1) * TX_BUFF_SZ) & 0x00ffffff,
+ &lp->tx_ring[i].base);
+ lp->tx_memcpy[i] = (char *) (p + lp->bus_offset);
+ }
+
+ /* Set up the initialization block */
+ lp->init_block.rx_ring = ((u32) ((u_long) lp->rx_ring) & LA_MASK) | lp->rx_rlen;
+ lp->init_block.tx_ring = ((u32) ((u_long) lp->tx_ring) & LA_MASK) | lp->tx_rlen;
+
+ SetMulticastFilter(dev);
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ lp->init_block.phys_addr[i] = dev->dev_addr[i];
+ }
+
+ lp->init_block.mode = 0x0000; /* Enable the Tx and Rx */
+
+ return;
+}
+
+/*
+ ** Writes a socket buffer to TX descriptor ring and starts transmission
+ */
+static int depca_start_xmit(struct sk_buff *skb, struct device *dev)
+{
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
+ int status = 0;
+
+ /* Transmitter timeout, serious problems. */
+ if (dev->tbusy) {
+ int tickssofar = jiffies - dev->trans_start;
+ if (tickssofar < 1 * HZ) {
+ status = -1;
+ } else {
+ printk("%s: transmit timed out, status %04x, resetting.\n",
+ dev->name, inw(DEPCA_DATA));
+
+ STOP_DEPCA;
+ depca_init_ring(dev);
+ LoadCSRs(dev);
+ dev->interrupt = UNMASK_INTERRUPTS;
+ dev->start = 1;
+ dev->tbusy = 0;
+ dev->trans_start = jiffies;
+ InitRestartDepca(dev);
+ }
+ return status;
+ }
+ else if (skb->len > 0)
+ {
+ /* Enforce 1 process per h/w access */
+ if (test_and_set_bit(0, (void *) &dev->tbusy) != 0) {
+ printk("%s: Transmitter access conflict.\n", dev->name);
+ status = -1;
+ } else {
+ if (TX_BUFFS_AVAIL) { /* Fill in a Tx ring entry */
+ status = load_packet(dev, skb);
+
+ if (!status) {
+ /* Trigger an immediate send demand. */
+ outw(CSR0, DEPCA_ADDR);
+ outw(INEA | TDMD, DEPCA_DATA);
+
+ dev->trans_start = jiffies;
+ dev_kfree_skb(skb, FREE_WRITE);
+ }
+ if (TX_BUFFS_AVAIL) {
+ dev->tbusy = 0;
+ }
+ } else {
+ status = -1;
+ }
+ }
+ }
+ return status;
+}
+
+/*
+ ** The DEPCA interrupt handler.
+ */
+static void depca_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ struct device *dev = dev_id;
+ struct depca_private *lp;
+ s16 csr0, nicsr;
+ u_long ioaddr;
+
+ if (dev == NULL) {
+ printk("depca_interrupt(): irq %d for unknown device.\n", irq);
} else {
- printk("%s: Memory squeeze, deferring packet.\n", dev->name);
- lp->stats.rx_dropped++; /* Really, deferred. */
- break;
- }
- }
- /* Change buffer ownership for this last frame, back to the adapter */
- for (; lp->rx_old!=entry; lp->rx_old=(++lp->rx_old)&lp->rxRingMask) {
- writel(readl(&lp->rx_ring[lp->rx_old].base) | R_OWN,
- &lp->rx_ring[lp->rx_old].base);
- }
- writel(readl(&lp->rx_ring[entry].base) | R_OWN, &lp->rx_ring[entry].base);
- }
-
- /*
- ** Update entry information
- */
- lp->rx_new = (++lp->rx_new) & lp->rxRingMask;
- }
-
- return 0;
+ lp = (struct depca_private *) dev->priv;
+ ioaddr = dev->base_addr;
+
+ if (dev->interrupt)
+ printk("%s: Re-entering the interrupt handler.\n", dev->name);
+
+ dev->interrupt = MASK_INTERRUPTS;
+
+ /* mask the DEPCA board interrupts and turn on the LED */
+ nicsr = inb(DEPCA_NICSR);
+ nicsr |= (IM | LED);
+ outb(nicsr, DEPCA_NICSR);
+
+ outw(CSR0, DEPCA_ADDR);
+ csr0 = inw(DEPCA_DATA);
+
+ /* Acknowledge all of the current interrupt sources ASAP. */
+ outw(csr0 & INTE, DEPCA_DATA);
+
+ if (csr0 & RINT) /* Rx interrupt (packet arrived) */
+ depca_rx(dev);
+
+ if (csr0 & TINT) /* Tx interrupt (packet sent) */
+ depca_tx(dev);
+
+ if ((TX_BUFFS_AVAIL >= 0) && dev->tbusy) { /* any resources available? */
+ dev->tbusy = 0; /* clear TX busy flag */
+ mark_bh(NET_BH);
+ }
+ /* Unmask the DEPCA board interrupts and turn off the LED */
+ nicsr = (nicsr & ~IM & ~LED);
+ outb(nicsr, DEPCA_NICSR);
+
+ dev->interrupt = UNMASK_INTERRUPTS;
+ }
+
+ return;
+}
+
+static int depca_rx(struct device *dev)
+{
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ int i, entry;
+ s32 status;
+
+ for (entry = lp->rx_new;
+ !(readl(&lp->rx_ring[entry].base) & R_OWN);
+ entry = lp->rx_new) {
+ status = readl(&lp->rx_ring[entry].base) >> 16;
+ if (status & R_STP) { /* Remember start of frame */
+ lp->rx_old = entry;
+ }
+ if (status & R_ENP) { /* Valid frame status */
+ if (status & R_ERR) { /* There was an error. */
+ lp->stats.rx_errors++; /* Update the error stats. */
+ if (status & R_FRAM)
+ lp->stats.rx_frame_errors++;
+ if (status & R_OFLO)
+ lp->stats.rx_over_errors++;
+ if (status & R_CRC)
+ lp->stats.rx_crc_errors++;
+ if (status & R_BUFF)
+ lp->stats.rx_fifo_errors++;
+ } else {
+ short len, pkt_len = readw(&lp->rx_ring[entry].msg_length);
+ struct sk_buff *skb;
+
+ skb = dev_alloc_skb(pkt_len + 2);
+ if (skb != NULL) {
+ unsigned char *buf;
+ skb_reserve(skb, 2); /* 16 byte align the IP header */
+ buf = skb_put(skb, pkt_len);
+ skb->dev = dev;
+ if (entry < lp->rx_old) { /* Wrapped buffer */
+ len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ;
+ memcpy_fromio(buf, lp->rx_memcpy[lp->rx_old], len);
+ memcpy_fromio(buf + len, lp->rx_memcpy[0], pkt_len - len);
+ } else { /* Linear buffer */
+ memcpy_fromio(buf, lp->rx_memcpy[lp->rx_old], 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 < DEPCA_PKT_STAT_SZ - 1; i++) {
+ if (pkt_len < (i * DEPCA_PKT_BIN_SZ)) {
+ lp->pktStats.bins[i]++;
+ i = DEPCA_PKT_STAT_SZ;
+ }
+ }
+ if (buf[0] & 0x01) { /* Multicast/Broadcast */
+ if ((*(s16 *) & buf[0] == -1) &&
+ (*(s16 *) & buf[2] == -1) &&
+ (*(s16 *) & buf[4] == -1)) {
+ lp->pktStats.broadcast++;
+ } else {
+ lp->pktStats.multicast++;
+ }
+ } else if ((*(s16 *) & buf[0] == *(s16 *) & dev->dev_addr[0]) &&
+ (*(s16 *) & buf[2] == *(s16 *) & dev->dev_addr[2]) &&
+ (*(s16 *) & buf[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((char *) &lp->pktStats, 0, sizeof(lp->pktStats));
+ }
+ } else {
+ printk("%s: Memory squeeze, deferring packet.\n", dev->name);
+ lp->stats.rx_dropped++; /* Really, deferred. */
+ break;
+ }
+ }
+ /* Change buffer ownership for this last frame, back to the adapter */
+ for (; lp->rx_old != entry; lp->rx_old = (++lp->rx_old) & lp->rxRingMask) {
+ writel(readl(&lp->rx_ring[lp->rx_old].base) | R_OWN,
+ &lp->rx_ring[lp->rx_old].base);
+ }
+ writel(readl(&lp->rx_ring[entry].base) | R_OWN, &lp->rx_ring[entry].base);
+ }
+ /*
+ ** Update entry information
+ */
+ lp->rx_new = (++lp->rx_new) & lp->rxRingMask;
+ }
+
+ return 0;
}
/*
-** Buffer sent - check for buffer errors.
-*/
-static int
-depca_tx(struct device *dev)
-{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- int entry;
- s32 status;
- u_long ioaddr = dev->base_addr;
-
- for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) {
- status = readl(&lp->tx_ring[entry].base) >> 16 ;
-
- if (status < 0) { /* Packet not yet sent! */
- break;
- } else if (status & T_ERR) { /* An error occurred. */
- status = readl(&lp->tx_ring[entry].misc);
- lp->stats.tx_errors++;
- if (status & TMD3_RTRY) lp->stats.tx_aborted_errors++;
- if (status & TMD3_LCAR) lp->stats.tx_carrier_errors++;
- if (status & TMD3_LCOL) lp->stats.tx_window_errors++;
- if (status & TMD3_UFLO) lp->stats.tx_fifo_errors++;
- if (status & (TMD3_BUFF | TMD3_UFLO)) {
- /* Trigger an immediate send demand. */
+ ** Buffer sent - check for buffer errors.
+ */
+static int depca_tx(struct device *dev)
+{
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ int entry;
+ s32 status;
+ u_long ioaddr = dev->base_addr;
+
+ for (entry = lp->tx_old; entry != lp->tx_new; entry = lp->tx_old) {
+ status = readl(&lp->tx_ring[entry].base) >> 16;
+
+ if (status < 0) { /* Packet not yet sent! */
+ break;
+ } else if (status & T_ERR) { /* An error occurred. */
+ status = readl(&lp->tx_ring[entry].misc);
+ lp->stats.tx_errors++;
+ if (status & TMD3_RTRY)
+ lp->stats.tx_aborted_errors++;
+ if (status & TMD3_LCAR)
+ lp->stats.tx_carrier_errors++;
+ if (status & TMD3_LCOL)
+ lp->stats.tx_window_errors++;
+ if (status & TMD3_UFLO)
+ lp->stats.tx_fifo_errors++;
+ if (status & (TMD3_BUFF | TMD3_UFLO)) {
+ /* Trigger an immediate send demand. */
+ outw(CSR0, DEPCA_ADDR);
+ outw(INEA | TDMD, DEPCA_DATA);
+ }
+ } else if (status & (T_MORE | T_ONE)) {
+ lp->stats.collisions++;
+ } else {
+ lp->stats.tx_packets++;
+ }
+
+ /* Update all the pointers */
+ lp->tx_old = (++lp->tx_old) & lp->txRingMask;
+ }
+
+ return 0;
+}
+
+static int depca_close(struct device *dev)
+{
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ s16 nicsr;
+ u_long ioaddr = dev->base_addr;
+
+ dev->start = 0;
+ dev->tbusy = 1;
+
outw(CSR0, DEPCA_ADDR);
- outw(INEA | TDMD, DEPCA_DATA);
- }
- } else if (status & (T_MORE | T_ONE)) {
- lp->stats.collisions++;
- } else {
- lp->stats.tx_packets++;
- }
-
- /* Update all the pointers */
- lp->tx_old = (++lp->tx_old) & lp->txRingMask;
- }
-
- return 0;
-}
-
-static int
-depca_close(struct device *dev)
-{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- s16 nicsr;
- u_long ioaddr = dev->base_addr;
-
- dev->start = 0;
- dev->tbusy = 1;
-
- outw(CSR0, DEPCA_ADDR);
-
- if (depca_debug > 1) {
- printk("%s: Shutting down ethercard, status was %2.2x.\n",
- dev->name, inw(DEPCA_DATA));
- }
-
- /*
- ** We stop the DEPCA here -- it occasionally polls
- ** memory if we don't.
- */
- outw(STOP, DEPCA_DATA);
-
- /*
- ** Give back the ROM in case the user wants to go to DOS
- */
- if (lp->adapter != DEPCA) {
- nicsr = inb(DEPCA_NICSR);
- nicsr &= ~SHE;
- outb(nicsr, DEPCA_NICSR);
- }
-
- /*
- ** Free the associated irq
- */
- free_irq(dev->irq, dev);
- MOD_DEC_USE_COUNT;
+ if (depca_debug > 1) {
+ printk("%s: Shutting down ethercard, status was %2.2x.\n",
+ dev->name, inw(DEPCA_DATA));
+ }
+ /*
+ ** We stop the DEPCA here -- it occasionally polls
+ ** memory if we don't.
+ */
+ outw(STOP, DEPCA_DATA);
+
+ /*
+ ** Give back the ROM in case the user wants to go to DOS
+ */
+ if (lp->adapter != DEPCA) {
+ nicsr = inb(DEPCA_NICSR);
+ nicsr &= ~SHE;
+ outb(nicsr, DEPCA_NICSR);
+ }
+ /*
+ ** Free the associated irq
+ */
+ free_irq(dev->irq, dev);
+
+ MOD_DEC_USE_COUNT;
- return 0;
+ return 0;
}
static void LoadCSRs(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
- outw(CSR1, DEPCA_ADDR); /* initialisation block address LSW */
- outw((u16)(lp->sh_mem & LA_MASK), DEPCA_DATA);
- outw(CSR2, DEPCA_ADDR); /* initialisation block address MSW */
- outw((u16)((lp->sh_mem & LA_MASK) >> 16), DEPCA_DATA);
- outw(CSR3, DEPCA_ADDR); /* ALE control */
- outw(ACON, DEPCA_DATA);
+ outw(CSR1, DEPCA_ADDR); /* initialisation block address LSW */
+ outw((u16) (lp->sh_mem & LA_MASK), DEPCA_DATA);
+ outw(CSR2, DEPCA_ADDR); /* initialisation block address MSW */
+ outw((u16) ((lp->sh_mem & LA_MASK) >> 16), DEPCA_DATA);
+ outw(CSR3, DEPCA_ADDR); /* ALE control */
+ outw(ACON, DEPCA_DATA);
- outw(CSR0, DEPCA_ADDR); /* Point back to CSR0 */
+ outw(CSR0, DEPCA_ADDR); /* Point back to CSR0 */
- return;
+ return;
}
static int InitRestartDepca(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
- int i, status=0;
-
- /* Copy the shadow init_block to shared memory */
- memcpy_toio((char *)lp->sh_mem, &lp->init_block, sizeof(struct depca_init));
-
- outw(CSR0, DEPCA_ADDR); /* point back to CSR0 */
- outw(INIT, DEPCA_DATA); /* initialize DEPCA */
-
- /* wait for lance to complete initialisation */
- for (i=0;(i<100) && !(inw(DEPCA_DATA) & IDON); i++);
-
- if (i!=100) {
- /* clear IDON by writing a "1", enable interrupts and start lance */
- outw(IDON | INEA | STRT, DEPCA_DATA);
- if (depca_debug > 2) {
- printk("%s: DEPCA open after %d ticks, init block 0x%08lx csr0 %4.4x.\n",
- dev->name, i, lp->sh_mem, inw(DEPCA_DATA));
- }
- } else {
- printk("%s: DEPCA unopen after %d ticks, init block 0x%08lx csr0 %4.4x.\n",
- dev->name, i, lp->sh_mem, inw(DEPCA_DATA));
- status = -1;
- }
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
+ int i, status = 0;
+
+ /* Copy the shadow init_block to shared memory */
+ memcpy_toio((char *) lp->sh_mem, &lp->init_block, sizeof(struct depca_init));
+
+ outw(CSR0, DEPCA_ADDR); /* point back to CSR0 */
+ outw(INIT, DEPCA_DATA); /* initialize DEPCA */
+
+ /* wait for lance to complete initialisation */
+ for (i = 0; (i < 100) && !(inw(DEPCA_DATA) & IDON); i++);
+
+ if (i != 100) {
+ /* clear IDON by writing a "1", enable interrupts and start lance */
+ outw(IDON | INEA | STRT, DEPCA_DATA);
+ if (depca_debug > 2) {
+ printk("%s: DEPCA open after %d ticks, init block 0x%08lx csr0 %4.4x.\n",
+ dev->name, i, lp->sh_mem, inw(DEPCA_DATA));
+ }
+ } else {
+ printk("%s: DEPCA unopen after %d ticks, init block 0x%08lx csr0 %4.4x.\n",
+ dev->name, i, lp->sh_mem, inw(DEPCA_DATA));
+ status = -1;
+ }
- return status;
+ return status;
}
static struct net_device_stats *
-depca_get_stats(struct device *dev)
+ depca_get_stats(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
+ struct depca_private *lp = (struct depca_private *) dev->priv;
- /* Null body since there is no framing error counter */
+ /* Null body since there is no framing error counter */
- return &lp->stats;
+ return &lp->stats;
}
/*
-** Set or clear the multicast filter for this adaptor.
-*/
-static void
-set_multicast_list(struct device *dev)
+ ** Set or clear the multicast filter for this adaptor.
+ */
+static void set_multicast_list(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
- while(dev->tbusy); /* Stop ring access */
- set_bit(0, (void*)&dev->tbusy);
- while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
+ while (dev->tbusy); /* Stop ring access */
+ set_bit(0, (void *) &dev->tbusy);
+ while (lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
- STOP_DEPCA; /* Temporarily stop the depca. */
- depca_init_ring(dev); /* Initialize the descriptor rings */
+ STOP_DEPCA; /* Temporarily stop the depca. */
+ depca_init_ring(dev); /* Initialize the descriptor rings */
- if (dev->flags & IFF_PROMISC) { /* Set promiscuous mode */
- lp->init_block.mode |= PROM;
- } else {
- SetMulticastFilter(dev);
- lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */
- }
+ if (dev->flags & IFF_PROMISC) { /* Set promiscuous mode */
+ lp->init_block.mode |= PROM;
+ } else {
+ SetMulticastFilter(dev);
+ lp->init_block.mode &= ~PROM; /* Unset promiscuous mode */
+ }
- LoadCSRs(dev); /* Reload CSR3 */
- InitRestartDepca(dev); /* Resume normal operation. */
- dev->tbusy = 0; /* Unlock the TX ring */
+ LoadCSRs(dev); /* Reload CSR3 */
+ InitRestartDepca(dev); /* Resume normal operation. */
+ dev->tbusy = 0; /* Unlock the TX ring */
}
/*
-** Calculate the hash code and update the logical address filter
-** from a list of ethernet multicast addresses.
-** Big endian crc one liner is mine, all mine, ha ha ha ha!
-** LANCE calculates its hash codes big endian.
-*/
+ ** Calculate the hash code and update the logical address filter
+ ** from a list of ethernet multicast addresses.
+ ** Big endian crc one liner is mine, all mine, ha ha ha ha!
+ ** LANCE calculates its hash codes big endian.
+ */
static void SetMulticastFilter(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- struct dev_mc_list *dmi=dev->mc_list;
- char *addrs;
- int i, j, bit, byte;
- u16 hashcode;
- s32 crc, poly = CRC_POLYNOMIAL_BE;
-
- if (dev->flags & IFF_ALLMULTI) { /* Set all multicast bits */
- for (i=0; i<(HASH_TABLE_LEN>>3); i++) {
- lp->init_block.mcast_table[i] = (char)0xff;
- }
- } else {
- for (i=0; i<(HASH_TABLE_LEN>>3); i++){ /* Clear the multicast table */
- lp->init_block.mcast_table[i]=0;
- }
- /* Add multicast addresses */
- 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<0?1:0) ^ bit) & 0x01) ? poly : 0);
- }
- }
- hashcode = (crc & 1); /* hashcode is 6 LSb of CRC ... */
- for (j=0;j<5;j++) { /* ... in reverse order. */
- hashcode = (hashcode << 1) | ((crc>>=1) & 1);
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ struct dev_mc_list *dmi = dev->mc_list;
+ char *addrs;
+ int i, j, bit, byte;
+ u16 hashcode;
+ s32 crc, poly = CRC_POLYNOMIAL_BE;
+
+ if (dev->flags & IFF_ALLMULTI) { /* Set all multicast bits */
+ for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) {
+ lp->init_block.mcast_table[i] = (char) 0xff;
+ }
+ } else {
+ for (i = 0; i < (HASH_TABLE_LEN >> 3); i++) { /* Clear the multicast table */
+ lp->init_block.mcast_table[i] = 0;
+ }
+ /* Add multicast addresses */
+ 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 < 0 ? 1 : 0) ^ bit) & 0x01) ? poly : 0);
+ }
+ }
+ hashcode = (crc & 1); /* hashcode is 6 LSb of CRC ... */
+ for (j = 0; j < 5; j++) { /* ... in reverse order. */
+ hashcode = (hashcode << 1) | ((crc >>= 1) & 1);
+ }
+
+
+ byte = hashcode >> 3; /* bit[3-5] -> byte in filter */
+ bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */
+ lp->init_block.mcast_table[byte] |= bit;
+ }
+ }
}
-
- byte = hashcode >> 3; /* bit[3-5] -> byte in filter */
- bit = 1 << (hashcode & 0x07); /* bit[0-2] -> bit in byte */
- lp->init_block.mcast_table[byte] |= bit;
- }
- }
- }
-
- 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_depcas, maxSlots;
- s32 ports[] = DEPCA_IO_PORTS;
+ int i = num_depcas, maxSlots;
+ s32 ports[] = DEPCA_IO_PORTS;
+
+ if (!ioaddr && autoprobed)
+ return; /* Been here before ! */
+ if (ioaddr > 0x400)
+ return; /* EISA Address */
+ if (i >= MAX_NUM_DEPCAS)
+ return; /* Too many ISA adapters */
+
+ if (ioaddr == 0) { /* Autoprobing */
+ maxSlots = MAX_NUM_DEPCAS;
+ } else { /* Probe a specific location */
+ ports[i] = ioaddr;
+ maxSlots = i + 1;
+ }
+
+ for (; (i < maxSlots) && (dev != NULL) && ports[i]; i++) {
+ if (DevicePresent(ports[i]) == 0) {
+ if (check_region(ports[i], DEPCA_TOTAL_SIZE) == 0) {
+ if ((dev = alloc_device(dev, ports[i])) != NULL) {
+ if (depca_hw_init(dev, ports[i]) == 0) {
+ num_depcas++;
+ }
+ num_eth++;
+ }
+ } else if (autoprobed) {
+ printk("%s: region already allocated at 0x%04x.\n", dev->name, ports[i]);
+ }
+ }
+ }
- if (!ioaddr && autoprobed) return ; /* Been here before ! */
- if (ioaddr > 0x400) return; /* EISA Address */
- if (i >= MAX_NUM_DEPCAS) return; /* Too many ISA adapters */
-
- if (ioaddr == 0) { /* Autoprobing */
- maxSlots = MAX_NUM_DEPCAS;
- } else { /* Probe a specific location */
- ports[i] = ioaddr;
- maxSlots = i + 1;
- }
-
- for (; (i<maxSlots) && (dev!=NULL) && ports[i]; i++) {
- if (DevicePresent(ports[i]) == 0) {
- if (check_region(ports[i], DEPCA_TOTAL_SIZE) == 0) {
- if ((dev = alloc_device(dev, ports[i])) != NULL) {
- if (depca_hw_init(dev, ports[i]) == 0) {
- num_depcas++;
- }
- num_eth++;
- }
- } else if (autoprobed) {
- printk("%s: region already allocated at 0x%04x.\n", dev->name,ports[i]);
- }
- }
- }
-
- return;
+ return;
}
/*
-** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually
-** the motherboard. Upto 15 EISA devices are supported.
-*/
+ ** EISA bus I/O device probe. Probe from slot 1 since slot 0 is usually
+ ** the motherboard. Upto 15 EISA devices are supported.
+ */
__initfunc(static void eisa_probe(struct device *dev, u_long ioaddr))
{
- int i, maxSlots;
- u_long iobase;
- char name[DEPCA_STRLEN];
-
- if (!ioaddr && autoprobed) return ; /* Been here before ! */
- if ((ioaddr < 0x400) && (ioaddr > 0)) return; /* ISA Address */
-
- 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;
- }
- if ((iobase & 0x0fff) == 0) iobase += DEPCA_EISA_IO_PORTS;
-
- for (; (i<maxSlots) && (dev!=NULL); i++, iobase+=EISA_SLOT_INC) {
- if (EISA_signature(name, EISA_ID)) {
- if (DevicePresent(iobase) == 0) {
- if (check_region(iobase, DEPCA_TOTAL_SIZE) == 0) {
- if ((dev = alloc_device(dev, iobase)) != NULL) {
- if (depca_hw_init(dev, iobase) == 0) {
- num_depcas++;
- }
- 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[DEPCA_STRLEN];
+
+ if (!ioaddr && autoprobed)
+ return; /* Been here before ! */
+ if ((ioaddr < 0x400) && (ioaddr > 0))
+ return; /* ISA Address */
+
+ 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;
+ }
+ if ((iobase & 0x0fff) == 0)
+ iobase += DEPCA_EISA_IO_PORTS;
+
+ for (; (i < maxSlots) && (dev != NULL); i++, iobase += EISA_SLOT_INC) {
+ if (EISA_signature(name, EISA_ID)) {
+ if (DevicePresent(iobase) == 0) {
+ if (check_region(iobase, DEPCA_TOTAL_SIZE) == 0) {
+ if ((dev = alloc_device(dev, iobase)) != NULL) {
+ if (depca_hw_init(dev, iobase) == 0) {
+ num_depcas++;
+ }
+ 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 = depca_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 == DEPCA_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 = depca_dev_index(dev->name);
- new_dev = 0;
- }
+ if (loading_module)
+ return dev;
- if (((dev->next == NULL) &&
- ((dev->base_addr != DEPCA_NDA) && (dev->base_addr != 0)) && !fixed) ||
- new_dev) {
- num_eth++; /* New device */
- dev = insert_device(dev, iobase, depca_probe);
- }
-
- return dev;
+ while (1) {
+ if (((dev->base_addr == DEPCA_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 = depca_dev_index(dev->name);
+ new_dev = 0;
+ }
+ if (((dev->next == NULL) &&
+ ((dev->base_addr != DEPCA_NDA) && (dev->base_addr != 0)) && !fixed) ||
+ new_dev) {
+ num_eth++; /* New device */
+ dev = insert_device(dev, iobase, depca_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
-depca_dev_index(char *s))
+ depca_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;
}
/*
-** Look for a particular board name in the on-board Remote Diagnostics
-** and Boot (readb) ROM. This will also give us a clue to the network RAM
-** base address.
-*/
+ ** Look for a particular board name in the on-board Remote Diagnostics
+ ** and Boot (readb) ROM. This will also give us a clue to the network RAM
+ ** base address.
+ */
__initfunc(static void DepcaSignature(char *name, u_long paddr))
{
- u_int i,j,k;
- const char *signatures[] = DEPCA_SIGNATURE;
- char tmpstr[16];
-
- /* Copy the first 16 bytes of ROM */
- for (i=0;i<16;i++) {
- tmpstr[i] = readb(paddr+0xc000+i);
- }
-
- /* Check if PROM contains a valid string */
- for (i=0;*signatures[i]!='\0';i++) {
- for (j=0,k=0;j<16 && k<strlen(signatures[i]);j++) {
- if (signatures[i][k] == tmpstr[j]) { /* track signature */
- k++;
- } else { /* lost signature; begin search again */
- k=0;
- }
- }
- if (k == strlen(signatures[i])) break;
- }
-
- /* Check if name string is valid, provided there's no PROM */
- if (*name && (i == unknown)) {
- for (i=0;*signatures[i]!='\0';i++) {
- if (strcmp(name,signatures[i]) == 0) break;
- }
- }
-
- /* Update search results */
- strcpy(name,signatures[i]);
- adapter = i;
-
- return;
+ u_int i, j, k;
+ const char *signatures[] = DEPCA_SIGNATURE;
+ char tmpstr[16];
+
+ /* Copy the first 16 bytes of ROM */
+ for (i = 0; i < 16; i++) {
+ tmpstr[i] = readb(paddr + 0xc000 + i);
+ }
+
+ /* Check if PROM contains a valid string */
+ for (i = 0; *signatures[i] != '\0'; i++) {
+ for (j = 0, k = 0; j < 16 && k < strlen(signatures[i]); j++) {
+ if (signatures[i][k] == tmpstr[j]) { /* track signature */
+ k++;
+ } else { /* lost signature; begin search again */
+ k = 0;
+ }
+ }
+ if (k == strlen(signatures[i]))
+ break;
+ }
+
+ /* Check if name string is valid, provided there's no PROM */
+ if (*name && (i == unknown)) {
+ for (i = 0; *signatures[i] != '\0'; i++) {
+ if (strcmp(name, signatures[i]) == 0)
+ break;
+ }
+ }
+ /* Update search results */
+ strcpy(name, signatures[i]);
+ adapter = i;
+
+ return;
}
/*
-** Look for a special sequence in the Ethernet station address PROM that
-** is common across all DEPCA products. Note that the original DEPCA needs
-** its ROM address counter to be initialized and enabled. Only enable
-** if the first address octet is a 0x08 - this minimises the chances of
-** messing around with some other hardware, but it assumes that this DEPCA
-** card initialized itself correctly.
-**
-** 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 DEPCA products. Note that the original DEPCA needs
+ ** its ROM address counter to be initialized and enabled. Only enable
+ ** if the first address octet is a 0x08 - this minimises the chances of
+ ** messing around with some other hardware, but it assumes that this DEPCA
+ ** card initialized itself correctly.
+ **
+ ** 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 ioaddr))
{
- union {
- struct {
- u32 a;
- u32 b;
- } llsig;
- char Sig[sizeof(u32) << 1];
- } dev;
- short sigLength=0;
- s8 data;
- s16 nicsr;
- int i, j, status = 0;
-
- data = inb(DEPCA_PROM); /* clear counter on DEPCA */
- data = inb(DEPCA_PROM); /* read data */
-
- if (data == 0x08) { /* Enable counter on DEPCA */
- nicsr = inb(DEPCA_NICSR);
- nicsr |= AAC;
- outb(nicsr, DEPCA_NICSR);
- }
-
- 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(DEPCA_PROM);
- if (dev.Sig[j] == data) { /* track signature */
- j++;
- } else { /* lost signature; begin search again */
- if (data == dev.Sig[0]) { /* rare case.... */
- j=1;
- } else {
- j=0;
- }
- }
- }
-
- if (j!=sigLength) {
- status = -ENODEV; /* search failed */
- }
-
- return status;
+ union {
+ struct {
+ u32 a;
+ u32 b;
+ } llsig;
+ char Sig[sizeof(u32) << 1];
+ }
+ dev;
+ short sigLength = 0;
+ s8 data;
+ s16 nicsr;
+ int i, j, status = 0;
+
+ data = inb(DEPCA_PROM); /* clear counter on DEPCA */
+ data = inb(DEPCA_PROM); /* read data */
+
+ if (data == 0x08) { /* Enable counter on DEPCA */
+ nicsr = inb(DEPCA_NICSR);
+ nicsr |= AAC;
+ outb(nicsr, DEPCA_NICSR);
+ }
+ 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(DEPCA_PROM);
+ if (dev.Sig[j] == data) { /* track signature */
+ j++;
+ } else { /* lost signature; begin search again */
+ if (data == dev.Sig[0]) { /* rare case.... */
+ j = 1;
+ } else {
+ j = 0;
+ }
+ }
+ }
+
+ if (j != sigLength) {
+ status = -ENODEV; /* search failed */
+ }
+ return status;
}
/*
-** The DE100 and DE101 PROM accesses were made non-standard for some bizarre
-** reason: access the upper half of the PROM with x=0; access the lower half
-** with x=1.
-*/
+ ** The DE100 and DE101 PROM accesses were made non-standard for some bizarre
+ ** reason: access the upper half of the PROM with x=0; access the lower half
+ ** with x=1.
+ */
__initfunc(static int get_hw_addr(struct device *dev))
{
- u_long ioaddr = dev->base_addr;
- int i, k, tmp, status = 0;
- u_short j, x, chksum;
-
- x = (((adapter == de100) || (adapter == de101)) ? 1 : 0);
-
- for (i=0,k=0,j=0;j<3;j++) {
- k <<= 1 ;
- if (k > 0xffff) k-=0xffff;
+ u_long ioaddr = dev->base_addr;
+ int i, k, tmp, status = 0;
+ u_short j, x, chksum;
+
+ x = (((adapter == de100) || (adapter == de101)) ? 1 : 0);
+
+ for (i = 0, k = 0, j = 0; j < 3; j++) {
+ k <<= 1;
+ if (k > 0xffff)
+ k -= 0xffff;
+
+ k += (u_char) (tmp = inb(DEPCA_PROM + x));
+ dev->dev_addr[i++] = (u_char) tmp;
+ k += (u_short) ((tmp = inb(DEPCA_PROM + x)) << 8);
+ dev->dev_addr[i++] = (u_char) tmp;
- k += (u_char) (tmp = inb(DEPCA_PROM + x));
- dev->dev_addr[i++] = (u_char) tmp;
- k += (u_short) ((tmp = inb(DEPCA_PROM + x)) << 8);
- dev->dev_addr[i++] = (u_char) tmp;
-
- if (k > 0xffff) k-=0xffff;
- }
- if (k == 0xffff) k=0;
+ if (k > 0xffff)
+ k -= 0xffff;
+ }
+ if (k == 0xffff)
+ k = 0;
- chksum = (u_char) inb(DEPCA_PROM + x);
- chksum |= (u_short) (inb(DEPCA_PROM + x) << 8);
- if (k != chksum) status = -1;
+ chksum = (u_char) inb(DEPCA_PROM + x);
+ chksum |= (u_short) (inb(DEPCA_PROM + x) << 8);
+ if (k != chksum)
+ status = -1;
- return status;
+ return status;
}
/*
-** Load a packet into the shared memory
-*/
+ ** Load a packet into the shared memory
+ */
static int load_packet(struct device *dev, struct sk_buff *skb)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- int i, entry, end, len, status = 0;
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ int i, entry, end, len, status = 0;
+
+ entry = lp->tx_new; /* Ring around buffer number. */
+ end = (entry + (skb->len - 1) / TX_BUFF_SZ) & lp->txRingMask;
+ if (!(readl(&lp->tx_ring[end].base) & T_OWN)) { /* Enough room? */
+ /*
+ ** Caution: the write order is important here... don't set up the
+ ** ownership rights until all the other information is in place.
+ */
+ if (end < entry) { /* wrapped buffer */
+ len = (lp->txRingMask - entry + 1) * TX_BUFF_SZ;
+ memcpy_toio(lp->tx_memcpy[entry], skb->data, len);
+ memcpy_toio(lp->tx_memcpy[0], skb->data + len, skb->len - len);
+ } else { /* linear buffer */
+ memcpy_toio(lp->tx_memcpy[entry], skb->data, skb->len);
+ }
+
+ /* set up the buffer descriptors */
+ len = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len;
+ for (i = entry; i != end; i = (++i) & lp->txRingMask) {
+ /* clean out flags */
+ writel(readl(&lp->tx_ring[i].base) & ~T_FLAGS, &lp->tx_ring[i].base);
+ writew(0x0000, &lp->tx_ring[i].misc); /* clears other error flags */
+ writew(-TX_BUFF_SZ, &lp->tx_ring[i].length); /* packet length in buffer */
+ len -= TX_BUFF_SZ;
+ }
+ /* clean out flags */
+ writel(readl(&lp->tx_ring[end].base) & ~T_FLAGS, &lp->tx_ring[end].base);
+ writew(0x0000, &lp->tx_ring[end].misc); /* clears other error flags */
+ writew(-len, &lp->tx_ring[end].length); /* packet length in last buff */
+
+ /* start of packet */
+ writel(readl(&lp->tx_ring[entry].base) | T_STP, &lp->tx_ring[entry].base);
+ /* end of packet */
+ writel(readl(&lp->tx_ring[end].base) | T_ENP, &lp->tx_ring[end].base);
+
+ for (i = end; i != entry; --i) {
+ /* ownership of packet */
+ writel(readl(&lp->tx_ring[i].base) | T_OWN, &lp->tx_ring[i].base);
+ if (i == 0)
+ i = lp->txRingMask + 1;
+ }
+ writel(readl(&lp->tx_ring[entry].base) | T_OWN, &lp->tx_ring[entry].base);
- entry = lp->tx_new; /* Ring around buffer number. */
- end = (entry + (skb->len - 1) / TX_BUFF_SZ) & lp->txRingMask;
- if (!(readl(&lp->tx_ring[end].base) & T_OWN)) {/* Enough room? */
- /*
- ** Caution: the write order is important here... don't set up the
- ** ownership rights until all the other information is in place.
- */
- if (end < entry) { /* wrapped buffer */
- len = (lp->txRingMask - entry + 1) * TX_BUFF_SZ;
- memcpy_toio(lp->tx_memcpy[entry], skb->data, len);
- memcpy_toio(lp->tx_memcpy[0], skb->data + len, skb->len - len);
- } else { /* linear buffer */
- memcpy_toio(lp->tx_memcpy[entry], skb->data, skb->len);
- }
-
- /* set up the buffer descriptors */
- len = (skb->len < ETH_ZLEN) ? ETH_ZLEN : skb->len;
- for (i = entry; i != end; i = (++i) & lp->txRingMask) {
- /* clean out flags */
- writel(readl(&lp->tx_ring[i].base) & ~T_FLAGS, &lp->tx_ring[i].base);
- writew(0x0000, &lp->tx_ring[i].misc); /* clears other error flags */
- writew(-TX_BUFF_SZ, &lp->tx_ring[i].length);/* packet length in buffer */
- len -= TX_BUFF_SZ;
- }
- /* clean out flags */
- writel(readl(&lp->tx_ring[end].base) & ~T_FLAGS, &lp->tx_ring[end].base);
- writew(0x0000, &lp->tx_ring[end].misc); /* clears other error flags */
- writew(-len, &lp->tx_ring[end].length); /* packet length in last buff */
-
- /* start of packet */
- writel(readl(&lp->tx_ring[entry].base) | T_STP, &lp->tx_ring[entry].base);
- /* end of packet */
- writel(readl(&lp->tx_ring[end].base) | T_ENP, &lp->tx_ring[end].base);
-
- for (i=end; i!=entry; --i) {
- /* ownership of packet */
- writel(readl(&lp->tx_ring[i].base) | T_OWN, &lp->tx_ring[i].base);
- if (i == 0) i=lp->txRingMask+1;
- }
- writel(readl(&lp->tx_ring[entry].base) | T_OWN, &lp->tx_ring[entry].base);
-
- lp->tx_new = (++end) & lp->txRingMask; /* update current pointers */
- } else {
- status = -1;
- }
+ lp->tx_new = (++end) & lp->txRingMask; /* update current pointers */
+ } else {
+ 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_int i;
- const char *signatures[] = DEPCA_SIGNATURE;
- char ManCode[DEPCA_STRLEN];
- union {
- s32 ID;
- char Id[4];
- } Eisa;
- int status = 0;
-
- *name = '\0';
- Eisa.ID = inl(eisa_id);
-
- 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;
- }
- }
+ u_int i;
+ const char *signatures[] = DEPCA_SIGNATURE;
+ char ManCode[DEPCA_STRLEN];
+ union {
+ s32 ID;
+ char Id[4];
+ } Eisa;
+ int status = 0;
+
+ *name = '\0';
+ Eisa.ID = inl(eisa_id);
+
+ 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 status;
}
static void depca_dbg_open(struct device *dev)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- u_long ioaddr = dev->base_addr;
- struct depca_init *p = (struct depca_init *)lp->sh_mem;
- int i;
-
- if (depca_debug > 1){
- /* Copy the shadow init_block to shared memory */
- memcpy_toio((char *)lp->sh_mem,&lp->init_block,sizeof(struct depca_init));
-
- printk("%s: depca open with irq %d\n",dev->name,dev->irq);
- printk("Descriptor head addresses:\n");
- printk("\t0x%lx 0x%lx\n",(u_long)lp->rx_ring, (u_long)lp->tx_ring);
- printk("Descriptor addresses:\nRX: ");
- for (i=0;i<lp->rxRingMask;i++){
- if (i < 3) {
- printk("0x%8.8lx ", (long) &lp->rx_ring[i].base);
- }
- }
- printk("...0x%8.8lx\n", (long) &lp->rx_ring[i].base);
- printk("TX: ");
- for (i=0;i<lp->txRingMask;i++){
- if (i < 3) {
- printk("0x%8.8lx ", (long) &lp->tx_ring[i].base);
- }
- }
- printk("...0x%8.8lx\n", (long) &lp->tx_ring[i].base);
- printk("\nDescriptor buffers:\nRX: ");
- for (i=0;i<lp->rxRingMask;i++){
- if (i < 3) {
- printk("0x%8.8x ", readl(&lp->rx_ring[i].base));
- }
- }
- printk("...0x%8.8x\n", readl(&lp->rx_ring[i].base));
- printk("TX: ");
- for (i=0;i<lp->txRingMask;i++){
- if (i < 3) {
- printk("0x%8.8x ", readl(&lp->tx_ring[i].base));
- }
- }
- printk("...0x%8.8x\n", readl(&lp->tx_ring[i].base));
- printk("Initialisation block at 0x%8.8lx\n",lp->sh_mem);
- printk("\tmode: 0x%4.4x\n",readw(&p->mode));
- printk("\tphysical address: ");
- for (i=0;i<ETH_ALEN-1;i++){
- printk("%2.2x:",(u_char)readb(&p->phys_addr[i]));
- }
- printk("%2.2x\n",(u_char)readb(&p->phys_addr[i]));
- printk("\tmulticast hash table: ");
- for (i=0;i<(HASH_TABLE_LEN >> 3)-1;i++){
- printk("%2.2x:",(u_char)readb(&p->mcast_table[i]));
- }
- printk("%2.2x\n",(u_char)readb(&p->mcast_table[i]));
- printk("\trx_ring at: 0x%8.8x\n",readl(&p->rx_ring));
- printk("\ttx_ring at: 0x%8.8x\n",readl(&p->tx_ring));
- printk("dma_buffs: 0x%8.8lx\n",lp->dma_buffs);
- printk("Ring size:\nRX: %d Log2(rxRingMask): 0x%8.8x\n",
- (int)lp->rxRingMask + 1,
- lp->rx_rlen);
- printk("TX: %d Log2(txRingMask): 0x%8.8x\n",
- (int)lp->txRingMask + 1,
- lp->tx_rlen);
- outw(CSR2,DEPCA_ADDR);
- printk("CSR2&1: 0x%4.4x",inw(DEPCA_DATA));
- outw(CSR1,DEPCA_ADDR);
- printk("%4.4x\n",inw(DEPCA_DATA));
- outw(CSR3,DEPCA_ADDR);
- printk("CSR3: 0x%4.4x\n",inw(DEPCA_DATA));
- }
-
- return;
-}
-
-/*
-** Perform IOCTL call functions here. Some are privileged operations and the
-** effective uid is checked in those cases.
-** All MCA IOCTLs will not work here and are for testing purposes only.
-*/
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ u_long ioaddr = dev->base_addr;
+ struct depca_init *p = (struct depca_init *) lp->sh_mem;
+ int i;
+
+ if (depca_debug > 1) {
+ /* Copy the shadow init_block to shared memory */
+ memcpy_toio((char *) lp->sh_mem, &lp->init_block, sizeof(struct depca_init));
+
+ printk("%s: depca open with irq %d\n", dev->name, dev->irq);
+ printk("Descriptor head addresses:\n");
+ printk("\t0x%lx 0x%lx\n", (u_long) lp->rx_ring, (u_long) lp->tx_ring);
+ printk("Descriptor addresses:\nRX: ");
+ for (i = 0; i < lp->rxRingMask; i++) {
+ if (i < 3) {
+ printk("0x%8.8lx ", (long) &lp->rx_ring[i].base);
+ }
+ }
+ printk("...0x%8.8lx\n", (long) &lp->rx_ring[i].base);
+ printk("TX: ");
+ for (i = 0; i < lp->txRingMask; i++) {
+ if (i < 3) {
+ printk("0x%8.8lx ", (long) &lp->tx_ring[i].base);
+ }
+ }
+ printk("...0x%8.8lx\n", (long) &lp->tx_ring[i].base);
+ printk("\nDescriptor buffers:\nRX: ");
+ for (i = 0; i < lp->rxRingMask; i++) {
+ if (i < 3) {
+ printk("0x%8.8x ", readl(&lp->rx_ring[i].base));
+ }
+ }
+ printk("...0x%8.8x\n", readl(&lp->rx_ring[i].base));
+ printk("TX: ");
+ for (i = 0; i < lp->txRingMask; i++) {
+ if (i < 3) {
+ printk("0x%8.8x ", readl(&lp->tx_ring[i].base));
+ }
+ }
+ printk("...0x%8.8x\n", readl(&lp->tx_ring[i].base));
+ printk("Initialisation block at 0x%8.8lx\n", lp->sh_mem);
+ printk("\tmode: 0x%4.4x\n", readw(&p->mode));
+ printk("\tphysical address: ");
+ for (i = 0; i < ETH_ALEN - 1; i++) {
+ printk("%2.2x:", (u_char) readb(&p->phys_addr[i]));
+ }
+ printk("%2.2x\n", (u_char) readb(&p->phys_addr[i]));
+ printk("\tmulticast hash table: ");
+ for (i = 0; i < (HASH_TABLE_LEN >> 3) - 1; i++) {
+ printk("%2.2x:", (u_char) readb(&p->mcast_table[i]));
+ }
+ printk("%2.2x\n", (u_char) readb(&p->mcast_table[i]));
+ printk("\trx_ring at: 0x%8.8x\n", readl(&p->rx_ring));
+ printk("\ttx_ring at: 0x%8.8x\n", readl(&p->tx_ring));
+ printk("dma_buffs: 0x%8.8lx\n", lp->dma_buffs);
+ printk("Ring size:\nRX: %d Log2(rxRingMask): 0x%8.8x\n",
+ (int) lp->rxRingMask + 1,
+ lp->rx_rlen);
+ printk("TX: %d Log2(txRingMask): 0x%8.8x\n",
+ (int) lp->txRingMask + 1,
+ lp->tx_rlen);
+ outw(CSR2, DEPCA_ADDR);
+ printk("CSR2&1: 0x%4.4x", inw(DEPCA_DATA));
+ outw(CSR1, DEPCA_ADDR);
+ printk("%4.4x\n", inw(DEPCA_DATA));
+ outw(CSR3, DEPCA_ADDR);
+ printk("CSR3: 0x%4.4x\n", inw(DEPCA_DATA));
+ }
+ return;
+}
+
+/*
+ ** Perform IOCTL call functions here. Some are privileged operations and the
+ ** effective uid is checked in those cases.
+ ** All MCA IOCTLs will not work here and are for testing purposes only.
+ */
static int depca_ioctl(struct device *dev, struct ifreq *rq, int cmd)
{
- struct depca_private *lp = (struct depca_private *)dev->priv;
- struct depca_ioctl *ioc = (struct depca_ioctl *) &rq->ifr_data;
- int i, status = 0;
- u_long ioaddr = dev->base_addr;
- union {
- u8 addr[(HASH_TABLE_LEN * ETH_ALEN)];
- u16 sval[(HASH_TABLE_LEN * ETH_ALEN) >> 1];
- u32 lval[(HASH_TABLE_LEN * ETH_ALEN) >> 2];
- } tmp;
-
- switch(ioc->cmd) {
- case DEPCA_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 DEPCA_SET_HWADDR: /* Set the hardware address */
- if (suser()) {
- if (!(status = verify_area(VERIFY_READ, (void *)ioc->data, ETH_ALEN))) {
- copy_from_user(tmp.addr,ioc->data,ETH_ALEN);
- for (i=0; i<ETH_ALEN; i++) {
- dev->dev_addr[i] = tmp.addr[i];
- }
- while(dev->tbusy); /* Stop ring access */
- set_bit(0, (void*)&dev->tbusy);
- while(lp->tx_old != lp->tx_new);/* Wait for the ring to empty */
-
- STOP_DEPCA; /* Temporarily stop the depca. */
- depca_init_ring(dev); /* Initialize the descriptor rings */
- LoadCSRs(dev); /* Reload CSR3 */
- InitRestartDepca(dev); /* Resume normal operation. */
- dev->tbusy = 0; /* Unlock the TX ring */
- }
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_SET_PROM: /* Set Promiscuous Mode */
- if (suser()) {
- while(dev->tbusy); /* Stop ring access */
- set_bit(0, (void*)&dev->tbusy);
- while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
-
- STOP_DEPCA; /* Temporarily stop the depca. */
- depca_init_ring(dev); /* Initialize the descriptor rings */
- lp->init_block.mode |= PROM; /* Set promiscuous mode */
-
- LoadCSRs(dev); /* Reload CSR3 */
- InitRestartDepca(dev); /* Resume normal operation. */
- dev->tbusy = 0; /* Unlock the TX ring */
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_CLR_PROM: /* Clear Promiscuous Mode */
- if (suser()) {
- while(dev->tbusy); /* Stop ring access */
- set_bit(0, (void*)&dev->tbusy);
- while(lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
-
- STOP_DEPCA; /* Temporarily stop the depca. */
- depca_init_ring(dev); /* Initialize the descriptor rings */
- lp->init_block.mode &= ~PROM; /* Clear promiscuous mode */
-
- LoadCSRs(dev); /* Reload CSR3 */
- InitRestartDepca(dev); /* Resume normal operation. */
- dev->tbusy = 0; /* Unlock the TX ring */
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_SAY_BOO: /* Say "Boo!" to the kernel log file */
- printk("%s: Boo!\n", dev->name);
-
- break;
- case DEPCA_GET_MCA: /* Get the multicast address table */
- ioc->len = (HASH_TABLE_LEN >> 3);
- if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, lp->init_block.mcast_table, ioc->len);
- }
-
- break;
- case DEPCA_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 DEPCA_CLR_MCA: /* Clear all multicast addresses */
- if (suser()) {
- set_multicast_list(dev);
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_MCA_EN: /* Enable pass all multicast addressing */
- if (suser()) {
- set_multicast_list(dev);
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_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 DEPCA_CLR_STATS: /* Zero out the driver statistics */
- if (suser()) {
- cli();
- memset(&lp->pktStats, 0, sizeof(lp->pktStats));
- sti();
- } else {
- status = -EPERM;
- }
-
- break;
- case DEPCA_GET_REG: /* Get the DEPCA Registers */
- i=0;
- tmp.sval[i++] = inw(DEPCA_NICSR);
- outw(CSR0, DEPCA_ADDR); /* status register */
- tmp.sval[i++] = inw(DEPCA_DATA);
- memcpy(&tmp.sval[i], &lp->init_block, sizeof(struct depca_init));
- ioc->len = i+sizeof(struct depca_init);
- if (!(status=verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
- copy_to_user(ioc->data, tmp.addr, ioc->len);
- }
-
- break;
- default:
- status = -EOPNOTSUPP;
- }
+ struct depca_private *lp = (struct depca_private *) dev->priv;
+ struct depca_ioctl *ioc = (struct depca_ioctl *) &rq->ifr_data;
+ int i, status = 0;
+ u_long ioaddr = dev->base_addr;
+ union {
+ u8 addr[(HASH_TABLE_LEN * ETH_ALEN)];
+ u16 sval[(HASH_TABLE_LEN * ETH_ALEN) >> 1];
+ u32 lval[(HASH_TABLE_LEN * ETH_ALEN) >> 2];
+ } tmp;
+
+ switch (ioc->cmd) {
+ case DEPCA_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 DEPCA_SET_HWADDR: /* Set the hardware address */
+ if (suser()) {
+ if (!(status = verify_area(VERIFY_READ, (void *) ioc->data, ETH_ALEN))) {
+ copy_from_user(tmp.addr, ioc->data, ETH_ALEN);
+ for (i = 0; i < ETH_ALEN; i++) {
+ dev->dev_addr[i] = tmp.addr[i];
+ }
+ while (dev->tbusy); /* Stop ring access */
+ set_bit(0, (void *) &dev->tbusy);
+ while (lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
+
+ STOP_DEPCA; /* Temporarily stop the depca. */
+ depca_init_ring(dev); /* Initialize the descriptor rings */
+ LoadCSRs(dev); /* Reload CSR3 */
+ InitRestartDepca(dev); /* Resume normal operation. */
+ dev->tbusy = 0; /* Unlock the TX ring */
+ }
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case DEPCA_SET_PROM: /* Set Promiscuous Mode */
+ if (suser()) {
+ while (dev->tbusy); /* Stop ring access */
+ set_bit(0, (void *) &dev->tbusy);
+ while (lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
+
+ STOP_DEPCA; /* Temporarily stop the depca. */
+ depca_init_ring(dev); /* Initialize the descriptor rings */
+ lp->init_block.mode |= PROM; /* Set promiscuous mode */
+
+ LoadCSRs(dev); /* Reload CSR3 */
+ InitRestartDepca(dev); /* Resume normal operation. */
+ dev->tbusy = 0; /* Unlock the TX ring */
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case DEPCA_CLR_PROM: /* Clear Promiscuous Mode */
+ if (suser()) {
+ while (dev->tbusy); /* Stop ring access */
+ set_bit(0, (void *) &dev->tbusy);
+ while (lp->tx_old != lp->tx_new); /* Wait for the ring to empty */
+
+ STOP_DEPCA; /* Temporarily stop the depca. */
+ depca_init_ring(dev); /* Initialize the descriptor rings */
+ lp->init_block.mode &= ~PROM; /* Clear promiscuous mode */
+
+ LoadCSRs(dev); /* Reload CSR3 */
+ InitRestartDepca(dev); /* Resume normal operation. */
+ dev->tbusy = 0; /* Unlock the TX ring */
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case DEPCA_SAY_BOO: /* Say "Boo!" to the kernel log file */
+ printk("%s: Boo!\n", dev->name);
+
+ break;
+ case DEPCA_GET_MCA: /* Get the multicast address table */
+ ioc->len = (HASH_TABLE_LEN >> 3);
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, lp->init_block.mcast_table, ioc->len);
+ }
+ break;
+ case DEPCA_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 DEPCA_CLR_MCA: /* Clear all multicast addresses */
+ if (suser()) {
+ set_multicast_list(dev);
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case DEPCA_MCA_EN: /* Enable pass all multicast addressing */
+ if (suser()) {
+ set_multicast_list(dev);
+ } else {
+ status = -EPERM;
+ }
- return status;
+ break;
+ case DEPCA_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 DEPCA_CLR_STATS: /* Zero out the driver statistics */
+ if (suser()) {
+ cli();
+ memset(&lp->pktStats, 0, sizeof(lp->pktStats));
+ sti();
+ } else {
+ status = -EPERM;
+ }
+
+ break;
+ case DEPCA_GET_REG: /* Get the DEPCA Registers */
+ i = 0;
+ tmp.sval[i++] = inw(DEPCA_NICSR);
+ outw(CSR0, DEPCA_ADDR); /* status register */
+ tmp.sval[i++] = inw(DEPCA_DATA);
+ memcpy(&tmp.sval[i], &lp->init_block, sizeof(struct depca_init));
+ ioc->len = i + sizeof(struct depca_init);
+ if (!(status = verify_area(VERIFY_WRITE, ioc->data, ioc->len))) {
+ copy_to_user(ioc->data, tmp.addr, ioc->len);
+ }
+ break;
+ default:
+ status = -EOPNOTSUPP;
+ }
+
+ return status;
}
#ifdef MODULE
-static char devicename[9] = { 0, };
-static struct device thisDepca = {
- devicename, /* device name is inserted by /linux/drivers/net/net_init.c */
- 0, 0, 0, 0,
- 0x200, 7, /* I/O address, IRQ */
- 0, 0, 0, NULL, depca_probe };
+static char devicename[9] =
+{0,};
+static struct device thisDepca =
+{
+ devicename, /* device name is inserted by /linux/drivers/net/net_init.c */
+ 0, 0, 0, 0,
+ 0x200, 7, /* I/O address, IRQ */
+ 0, 0, 0, NULL, depca_probe};
-static int irq=7; /* EDIT THESE LINE FOR YOUR CONFIGURATION */
-static int io=0x200; /* Or use the irq= io= options to insmod */
+static int irq = 7; /* EDIT THESE LINE FOR YOUR CONFIGURATION */
+static int io = 0x200; /* Or use the irq= io= options to insmod */
MODULE_PARM(irq, "i");
MODULE_PARM(io, "i");
/* See depca_probe() for autoprobe messages when a module */
-int
-init_module(void)
+int init_module(void)
{
- thisDepca.irq=irq;
- thisDepca.base_addr=io;
+ thisDepca.irq = irq;
+ thisDepca.base_addr = io;
- if (register_netdev(&thisDepca) != 0)
- return -EIO;
+ if (register_netdev(&thisDepca) != 0)
+ return -EIO;
- return 0;
+ return 0;
}
-void
-cleanup_module(void)
+void cleanup_module(void)
{
- if (thisDepca.priv) {
- kfree(thisDepca.priv);
- thisDepca.priv = NULL;
- }
- thisDepca.irq=0;
+ if (thisDepca.priv) {
+ kfree(thisDepca.priv);
+ thisDepca.priv = NULL;
+ }
+ thisDepca.irq = 0;
- unregister_netdev(&thisDepca);
- release_region(thisDepca.base_addr, DEPCA_TOTAL_SIZE);
+ unregister_netdev(&thisDepca);
+ release_region(thisDepca.base_addr, DEPCA_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 depca.c"
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