/drivers/net/tulip/de4x5.c
C | 1138 lines | 498 code | 71 blank | 569 comment | 12 complexity | bde63d0c6a0040b8cc413f10883acd85 MD5 | raw file
- /* de4x5.c: A DIGITAL DC21x4x DECchip and DE425/DE434/DE435/DE450/DE500
- ethernet driver for Linux.
- Copyright 1994, 1995 Digital Equipment Corporation.
- Testing resources for this driver have been made available
- in part by NASA Ames Research Center (mjacob@nas.nasa.gov).
- The author may be reached at davies@maniac.ultranet.com.
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2 of the License, or (at your
- option) any later version.
- THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 675 Mass Ave, Cambridge, MA 02139, USA.
- Originally, this driver was written for the Digital Equipment
- Corporation series of EtherWORKS ethernet cards:
- DE425 TP/COAX EISA
- DE434 TP PCI
- DE435 TP/COAX/AUI PCI
- DE450 TP/COAX/AUI PCI
- DE500 10/100 PCI Fasternet
- but it will now attempt to support all cards which conform to the
- Digital Semiconductor SROM Specification. The driver currently
- recognises the following chips:
- DC21040 (no SROM)
- DC21041[A]
- DC21140[A]
- DC21142
- DC21143
- So far the driver is known to work with the following cards:
- KINGSTON
- Linksys
- ZNYX342
- SMC8432
- SMC9332 (w/new SROM)
- ZNYX31[45]
- ZNYX346 10/100 4 port (can act as a 10/100 bridge!)
- The driver has been tested on a relatively busy network using the DE425,
- DE434, DE435 and DE500 cards and benchmarked with 'ttcp': it transferred
- 16M of data to a DECstation 5000/200 as follows:
- TCP UDP
- TX RX TX RX
- DE425 1030k 997k 1170k 1128k
- DE434 1063k 995k 1170k 1125k
- DE435 1063k 995k 1170k 1125k
- DE500 1063k 998k 1170k 1125k in 10Mb/s mode
- All values are typical (in kBytes/sec) from a sample of 4 for each
- measurement. Their error is +/-20k on a quiet (private) network and also
- depend on what load the CPU has.
- =========================================================================
- This driver has been written substantially from scratch, although its
- inheritance of style and stack interface from 'ewrk3.c' and in turn from
- Donald Becker's 'lance.c' should be obvious. With the module autoload of
- every usable DECchip board, I pinched Donald's 'next_module' field to
- link my modules together.
- Up to 15 EISA cards can be supported under this driver, limited primarily
- by the available IRQ lines. I have checked different configurations of
- multiple depca, EtherWORKS 3 cards and de4x5 cards and have not found a
- problem yet (provided you have at least depca.c v0.38) ...
- PCI support has been added to allow the driver to work with the DE434,
- DE435, DE450 and DE500 cards. The I/O accesses are a bit of a kludge due
- to the differences in the EISA and PCI CSR address offsets from the base
- address.
- The ability to load this driver as a loadable module has been included
- and used extensively during the driver development (to save those long
- reboot sequences). Loadable module support under PCI and EISA has been
- achieved by letting the driver autoprobe as if it were compiled into the
- kernel. Do make sure you're not sharing interrupts with anything that
- cannot accommodate interrupt sharing!
- 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 de4x5.c from the /linux/drivers/net directory to your favourite
- temporary directory.
- 2) for fixed autoprobes (not recommended), edit the source code near
- line 5594 to reflect the I/O address you're using, or assign these when
- loading by:
- insmod de4x5 io=0xghh where g = bus number
- hh = device number
- NB: autoprobing for modules is now supported by default. You may just
- use:
- insmod de4x5
- to load all available boards. For a specific board, still use
- the 'io=?' above.
- 3) compile de4x5.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 de4x5 configuration turned off and reboot.
- 5) insmod de4x5 [io=0xghh]
- 6) run the net startup bits for your new eth?? interface(s) manually
- (usually /etc/rc.inet[12] at boot time).
- 7) enjoy!
- To unload a module, turn off the associated interface(s)
- 'ifconfig eth?? down' then 'rmmod de4x5'.
- Automedia detection is included so that in principal you can disconnect
- from, e.g. TP, reconnect to BNC and things will still work (after a
- pause whilst the driver figures out where its media went). My tests
- using ping showed that it appears to work....
- By default, the driver will now autodetect any DECchip based card.
- Should you have a need to restrict the driver to DIGITAL only cards, you
- can compile with a DEC_ONLY define, or if loading as a module, use the
- 'dec_only=1' parameter.
- I've changed the timing routines to use the kernel timer and scheduling
- functions so that the hangs and other assorted problems that occurred
- while autosensing the media should be gone. A bonus for the DC21040
- auto media sense algorithm is that it can now use one that is more in
- line with the rest (the DC21040 chip doesn't have a hardware timer).
- The downside is the 1 'jiffies' (10ms) resolution.
- IEEE 802.3u MII interface code has been added in anticipation that some
- products may use it in the future.
- The SMC9332 card has a non-compliant SROM which needs fixing - I have
- patched this driver to detect it because the SROM format used complies
- to a previous DEC-STD format.
- I have removed the buffer copies needed for receive on Intels. I cannot
- remove them for Alphas since the Tulip hardware only does longword
- aligned DMA transfers and the Alphas get alignment traps with non
- longword aligned data copies (which makes them really slow). No comment.
- I have added SROM decoding routines to make this driver work with any
- card that supports the Digital Semiconductor SROM spec. This will help
- all cards running the dc2114x series chips in particular. Cards using
- the dc2104x chips should run correctly with the basic driver. I'm in
- debt to <mjacob@feral.com> for the testing and feedback that helped get
- this feature working. So far we have tested KINGSTON, SMC8432, SMC9332
- (with the latest SROM complying with the SROM spec V3: their first was
- broken), ZNYX342 and LinkSys. ZYNX314 (dual 21041 MAC) and ZNYX 315
- (quad 21041 MAC) cards also appear to work despite their incorrectly
- wired IRQs.
- I have added a temporary fix for interrupt problems when some SCSI cards
- share the same interrupt as the DECchip based cards. The problem occurs
- because the SCSI card wants to grab the interrupt as a fast interrupt
- (runs the service routine with interrupts turned off) vs. this card
- which really needs to run the service routine with interrupts turned on.
- This driver will now add the interrupt service routine as a fast
- interrupt if it is bounced from the slow interrupt. THIS IS NOT A
- RECOMMENDED WAY TO RUN THE DRIVER and has been done for a limited time
- until people sort out their compatibility issues and the kernel
- interrupt service code is fixed. YOU SHOULD SEPARATE OUT THE FAST
- INTERRUPT CARDS FROM THE SLOW INTERRUPT CARDS to ensure that they do not
- run on the same interrupt. PCMCIA/CardBus is another can of worms...
- Finally, I think I have really fixed the module loading problem with
- more than one DECchip based card. As a side effect, I don't mess with
- the device structure any more which means that if more than 1 card in
- 2.0.x is installed (4 in 2.1.x), the user will have to edit
- linux/drivers/net/Space.c to make room for them. Hence, module loading
- is the preferred way to use this driver, since it doesn't have this
- limitation.
- Where SROM media detection is used and full duplex is specified in the
- SROM, the feature is ignored unless lp->params.fdx is set at compile
- time OR during a module load (insmod de4x5 args='eth??:fdx' [see
- below]). This is because there is no way to automatically detect full
- duplex links except through autonegotiation. When I include the
- autonegotiation feature in the SROM autoconf code, this detection will
- occur automatically for that case.
- Command line arguments are now allowed, similar to passing arguments
- through LILO. This will allow a per adapter board set up of full duplex
- and media. The only lexical constraints are: the board name (dev->name)
- appears in the list before its parameters. The list of parameters ends
- either at the end of the parameter list or with another board name. The
- following parameters are allowed:
- fdx for full duplex
- autosense to set the media/speed; with the following
- sub-parameters:
- TP, TP_NW, BNC, AUI, BNC_AUI, 100Mb, 10Mb, AUTO
- Case sensitivity is important for the sub-parameters. They *must* be
- upper case. Examples:
- insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'.
- For a compiled in driver, at or above line 548, place e.g.
- #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP"
- Yes, I know full duplex isn't permissible on BNC or AUI; they're just
- examples. By default, full duplex is turned off and AUTO is the default
- autosense setting. In reality, I expect only the full duplex option to
- be used. Note the use of single quotes in the two examples above and the
- lack of commas to separate items. ALSO, you must get the requested media
- correct in relation to what the adapter SROM says it has. There's no way
- to determine this in advance other than by trial and error and common
- sense, e.g. call a BNC connectored port 'BNC', not '10Mb'.
- Changed the bus probing. EISA used to be done first, followed by PCI.
- Most people probably don't even know what a de425 is today and the EISA
- probe has messed up some SCSI cards in the past, so now PCI is always
- probed first followed by EISA if a) the architecture allows EISA and
- either b) there have been no PCI cards detected or c) an EISA probe is
- forced by the user. To force a probe include "force_eisa" in your
- insmod "args" line; for built-in kernels either change the driver to do
- this automatically or include #define DE4X5_FORCE_EISA on or before
- line 1040 in the driver.
- TO DO:
- ------
- Revision History
- ----------------
- Version Date Description
- 0.1 17-Nov-94 Initial writing. ALPHA code release.
- 0.2 13-Jan-95 Added PCI support for DE435's.
- 0.21 19-Jan-95 Added auto media detection.
- 0.22 10-Feb-95 Fix interrupt handler call <chris@cosy.sbg.ac.at>.
- Fix recognition bug reported by <bkm@star.rl.ac.uk>.
- Add request/release_region code.
- Add loadable modules support for PCI.
- Clean up loadable modules support.
- 0.23 28-Feb-95 Added DC21041 and DC21140 support.
- Fix missed frame counter value and initialisation.
- Fixed EISA probe.
- 0.24 11-Apr-95 Change delay routine to use <linux/udelay>.
- Change TX_BUFFS_AVAIL macro.
- Change media autodetection to allow manual setting.
- Completed DE500 (DC21140) support.
- 0.241 18-Apr-95 Interim release without DE500 Autosense Algorithm.
- 0.242 10-May-95 Minor changes.
- 0.30 12-Jun-95 Timer fix for DC21140.
- Portability changes.
- Add ALPHA changes from <jestabro@ant.tay1.dec.com>.
- Add DE500 semi automatic autosense.
- Add Link Fail interrupt TP failure detection.
- Add timer based link change detection.
- Plugged a memory leak in de4x5_queue_pkt().
- 0.31 13-Jun-95 Fixed PCI stuff for 1.3.1.
- 0.32 26-Jun-95 Added verify_area() calls in de4x5_ioctl() from a
- suggestion by <heiko@colossus.escape.de>.
- 0.33 8-Aug-95 Add shared interrupt support (not released yet).
- 0.331 21-Aug-95 Fix de4x5_open() with fast CPUs.
- Fix de4x5_interrupt().
- Fix dc21140_autoconf() mess.
- No shared interrupt support.
- 0.332 11-Sep-95 Added MII management interface routines.
- 0.40 5-Mar-96 Fix setup frame timeout <maartenb@hpkuipc.cern.ch>.
- Add kernel timer code (h/w is too flaky).
- Add MII based PHY autosense.
- Add new multicasting code.
- Add new autosense algorithms for media/mode
- selection using kernel scheduling/timing.
- Re-formatted.
- Made changes suggested by <jeff@router.patch.net>:
- Change driver to detect all DECchip based cards
- with DEC_ONLY restriction a special case.
- Changed driver to autoprobe as a module. No irq
- checking is done now - assume BIOS is good!
- Added SMC9332 detection <manabe@Roy.dsl.tutics.ac.jp>
- 0.41 21-Mar-96 Don't check for get_hw_addr checksum unless DEC card
- only <niles@axp745gsfc.nasa.gov>
- Fix for multiple PCI cards reported by <jos@xos.nl>
- Duh, put the IRQF_SHARED flag into request_interrupt().
- Fix SMC ethernet address in enet_det[].
- Print chip name instead of "UNKNOWN" during boot.
- 0.42 26-Apr-96 Fix MII write TA bit error.
- Fix bug in dc21040 and dc21041 autosense code.
- Remove buffer copies on receive for Intels.
- Change sk_buff handling during media disconnects to
- eliminate DUP packets.
- Add dynamic TX thresholding.
- Change all chips to use perfect multicast filtering.
- Fix alloc_device() bug <jari@markkus2.fimr.fi>
- 0.43 21-Jun-96 Fix unconnected media TX retry bug.
- Add Accton to the list of broken cards.
- Fix TX under-run bug for non DC21140 chips.
- Fix boot command probe bug in alloc_device() as
- reported by <koen.gadeyne@barco.com> and
- <orava@nether.tky.hut.fi>.
- Add cache locks to prevent a race condition as
- reported by <csd@microplex.com> and
- <baba@beckman.uiuc.edu>.
- Upgraded alloc_device() code.
- 0.431 28-Jun-96 Fix potential bug in queue_pkt() from discussion
- with <csd@microplex.com>
- 0.44 13-Aug-96 Fix RX overflow bug in 2114[023] chips.
- Fix EISA probe bugs reported by <os2@kpi.kharkov.ua>
- and <michael@compurex.com>.
- 0.441 9-Sep-96 Change dc21041_autoconf() to probe quiet BNC media
- with a loopback packet.
- 0.442 9-Sep-96 Include AUI in dc21041 media printout. Bug reported
- by <bhat@mundook.cs.mu.OZ.AU>
- 0.45 8-Dec-96 Include endian functions for PPC use, from work
- by <cort@cs.nmt.edu> and <g.thomas@opengroup.org>.
- 0.451 28-Dec-96 Added fix to allow autoprobe for modules after
- suggestion from <mjacob@feral.com>.
- 0.5 30-Jan-97 Added SROM decoding functions.
- Updated debug flags.
- Fix sleep/wakeup calls for PCI cards, bug reported
- by <cross@gweep.lkg.dec.com>.
- Added multi-MAC, one SROM feature from discussion
- with <mjacob@feral.com>.
- Added full module autoprobe capability.
- Added attempt to use an SMC9332 with broken SROM.
- Added fix for ZYNX multi-mac cards that didn't
- get their IRQs wired correctly.
- 0.51 13-Feb-97 Added endian fixes for the SROM accesses from
- <paubert@iram.es>
- Fix init_connection() to remove extra device reset.
- Fix MAC/PHY reset ordering in dc21140m_autoconf().
- Fix initialisation problem with lp->timeout in
- typeX_infoblock() from <paubert@iram.es>.
- Fix MII PHY reset problem from work done by
- <paubert@iram.es>.
- 0.52 26-Apr-97 Some changes may not credit the right people -
- a disk crash meant I lost some mail.
- Change RX interrupt routine to drop rather than
- defer packets to avoid hang reported by
- <g.thomas@opengroup.org>.
- Fix srom_exec() to return for COMPACT and type 1
- infoblocks.
- Added DC21142 and DC21143 functions.
- Added byte counters from <phil@tazenda.demon.co.uk>
- Added IRQF_DISABLED temporary fix from
- <mjacob@feral.com>.
- 0.53 12-Nov-97 Fix the *_probe() to include 'eth??' name during
- module load: bug reported by
- <Piete.Brooks@cl.cam.ac.uk>
- Fix multi-MAC, one SROM, to work with 2114x chips:
- bug reported by <cmetz@inner.net>.
- Make above search independent of BIOS device scan
- direction.
- Completed DC2114[23] autosense functions.
- 0.531 21-Dec-97 Fix DE500-XA 100Mb/s bug reported by
- <robin@intercore.com
- Fix type1_infoblock() bug introduced in 0.53, from
- problem reports by
- <parmee@postecss.ncrfran.france.ncr.com> and
- <jo@ice.dillingen.baynet.de>.
- Added argument list to set up each board from either
- a module's command line or a compiled in #define.
- Added generic MII PHY functionality to deal with
- newer PHY chips.
- Fix the mess in 2.1.67.
- 0.532 5-Jan-98 Fix bug in mii_get_phy() reported by
- <redhat@cococo.net>.
- Fix bug in pci_probe() for 64 bit systems reported
- by <belliott@accessone.com>.
- 0.533 9-Jan-98 Fix more 64 bit bugs reported by <jal@cs.brown.edu>.
- 0.534 24-Jan-98 Fix last (?) endian bug from <geert@linux-m68k.org>
- 0.535 21-Feb-98 Fix Ethernet Address PROM reset bug for DC21040.
- 0.536 21-Mar-98 Change pci_probe() to use the pci_dev structure.
- **Incompatible with 2.0.x from here.**
- 0.540 5-Jul-98 Atomicize assertion of dev->interrupt for SMP
- from <lma@varesearch.com>
- Add TP, AUI and BNC cases to 21140m_autoconf() for
- case where a 21140 under SROM control uses, e.g. AUI
- from problem report by <delchini@lpnp09.in2p3.fr>
- Add MII parallel detection to 2114x_autoconf() for
- case where no autonegotiation partner exists from
- problem report by <mlapsley@ndirect.co.uk>.
- Add ability to force connection type directly even
- when using SROM control from problem report by
- <earl@exis.net>.
- Updated the PCI interface to conform with the latest
- version. I hope nothing is broken...
- Add TX done interrupt modification from suggestion
- by <Austin.Donnelly@cl.cam.ac.uk>.
- Fix is_anc_capable() bug reported by
- <Austin.Donnelly@cl.cam.ac.uk>.
- Fix type[13]_infoblock() bug: during MII search, PHY
- lp->rst not run because lp->ibn not initialised -
- from report & fix by <paubert@iram.es>.
- Fix probe bug with EISA & PCI cards present from
- report by <eirik@netcom.com>.
- 0.541 24-Aug-98 Fix compiler problems associated with i386-string
- ops from multiple bug reports and temporary fix
- from <paubert@iram.es>.
- Fix pci_probe() to correctly emulate the old
- pcibios_find_class() function.
- Add an_exception() for old ZYNX346 and fix compile
- warning on PPC & SPARC, from <ecd@skynet.be>.
- Fix lastPCI to correctly work with compiled in
- kernels and modules from bug report by
- <Zlatko.Calusic@CARNet.hr> et al.
- 0.542 15-Sep-98 Fix dc2114x_autoconf() to stop multiple messages
- when media is unconnected.
- Change dev->interrupt to lp->interrupt to ensure
- alignment for Alpha's and avoid their unaligned
- access traps. This flag is merely for log messages:
- should do something more definitive though...
- 0.543 30-Dec-98 Add SMP spin locking.
- 0.544 8-May-99 Fix for buggy SROM in Motorola embedded boards using
- a 21143 by <mmporter@home.com>.
- Change PCI/EISA bus probing order.
- 0.545 28-Nov-99 Further Moto SROM bug fix from
- <mporter@eng.mcd.mot.com>
- Remove double checking for DEBUG_RX in de4x5_dbg_rx()
- from report by <geert@linux-m68k.org>
- 0.546 22-Feb-01 Fixes Alpha XP1000 oops. The srom_search function
- was causing a page fault when initializing the
- variable 'pb', on a non de4x5 PCI device, in this
- case a PCI bridge (DEC chip 21152). The value of
- 'pb' is now only initialized if a de4x5 chip is
- present.
- <france@handhelds.org>
- 0.547 08-Nov-01 Use library crc32 functions by <Matt_Domsch@dell.com>
- 0.548 30-Aug-03 Big 2.6 cleanup. Ported to PCI/EISA probing and
- generic DMA APIs. Fixed DE425 support on Alpha.
- <maz@wild-wind.fr.eu.org>
- =========================================================================
- */
- #include <linux/module.h>
- #include <linux/kernel.h>
- #include <linux/string.h>
- #include <linux/interrupt.h>
- #include <linux/ptrace.h>
- #include <linux/errno.h>
- #include <linux/ioport.h>
- #include <linux/pci.h>
- #include <linux/eisa.h>
- #include <linux/delay.h>
- #include <linux/init.h>
- #include <linux/spinlock.h>
- #include <linux/crc32.h>
- #include <linux/netdevice.h>
- #include <linux/etherdevice.h>
- #include <linux/skbuff.h>
- #include <linux/time.h>
- #include <linux/types.h>
- #include <linux/unistd.h>
- #include <linux/ctype.h>
- #include <linux/dma-mapping.h>
- #include <linux/moduleparam.h>
- #include <linux/bitops.h>
- #include <linux/gfp.h>
- #include <asm/io.h>
- #include <asm/dma.h>
- #include <asm/byteorder.h>
- #include <asm/unaligned.h>
- #include <asm/uaccess.h>
- #ifdef CONFIG_PPC_PMAC
- #include <asm/machdep.h>
- #endif /* CONFIG_PPC_PMAC */
- #include "de4x5.h"
- static const char version[] __devinitconst =
- KERN_INFO "de4x5.c:V0.546 2001/02/22 davies@maniac.ultranet.com\n";
- #define c_char const char
- /*
- ** MII Information
- */
- struct phy_table {
- int reset; /* Hard reset required? */
- int id; /* IEEE OUI */
- int ta; /* One cycle TA time - 802.3u is confusing here */
- struct { /* Non autonegotiation (parallel) speed det. */
- int reg;
- int mask;
- int value;
- } spd;
- };
- struct mii_phy {
- int reset; /* Hard reset required? */
- int id; /* IEEE OUI */
- int ta; /* One cycle TA time */
- struct { /* Non autonegotiation (parallel) speed det. */
- int reg;
- int mask;
- int value;
- } spd;
- int addr; /* MII address for the PHY */
- u_char *gep; /* Start of GEP sequence block in SROM */
- u_char *rst; /* Start of reset sequence in SROM */
- u_int mc; /* Media Capabilities */
- u_int ana; /* NWay Advertisement */
- u_int fdx; /* Full DupleX capabilities for each media */
- u_int ttm; /* Transmit Threshold Mode for each media */
- u_int mci; /* 21142 MII Connector Interrupt info */
- };
- #define DE4X5_MAX_PHY 8 /* Allow up to 8 attached PHY devices per board */
- struct sia_phy {
- u_char mc; /* Media Code */
- u_char ext; /* csr13-15 valid when set */
- int csr13; /* SIA Connectivity Register */
- int csr14; /* SIA TX/RX Register */
- int csr15; /* SIA General Register */
- int gepc; /* SIA GEP Control Information */
- int gep; /* SIA GEP Data */
- };
- /*
- ** Define the know universe of PHY devices that can be
- ** recognised by this driver.
- */
- static struct phy_table phy_info[] = {
- {0, NATIONAL_TX, 1, {0x19, 0x40, 0x00}}, /* National TX */
- {1, BROADCOM_T4, 1, {0x10, 0x02, 0x02}}, /* Broadcom T4 */
- {0, SEEQ_T4 , 1, {0x12, 0x10, 0x10}}, /* SEEQ T4 */
- {0, CYPRESS_T4 , 1, {0x05, 0x20, 0x20}}, /* Cypress T4 */
- {0, 0x7810 , 1, {0x14, 0x0800, 0x0800}} /* Level One LTX970 */
- };
- /*
- ** These GENERIC values assumes that the PHY devices follow 802.3u and
- ** allow parallel detection to set the link partner ability register.
- ** Detection of 100Base-TX [H/F Duplex] and 100Base-T4 is supported.
- */
- #define GENERIC_REG 0x05 /* Autoneg. Link Partner Advertisement Reg. */
- #define GENERIC_MASK MII_ANLPA_100M /* All 100Mb/s Technologies */
- #define GENERIC_VALUE MII_ANLPA_100M /* 100B-TX, 100B-TX FDX, 100B-T4 */
- /*
- ** Define special SROM detection cases
- */
- static c_char enet_det[][ETH_ALEN] = {
- {0x00, 0x00, 0xc0, 0x00, 0x00, 0x00},
- {0x00, 0x00, 0xe8, 0x00, 0x00, 0x00}
- };
- #define SMC 1
- #define ACCTON 2
- /*
- ** SROM Repair definitions. If a broken SROM is detected a card may
- ** use this information to help figure out what to do. This is a
- ** "stab in the dark" and so far for SMC9332's only.
- */
- static c_char srom_repair_info[][100] = {
- {0x00,0x1e,0x00,0x00,0x00,0x08, /* SMC9332 */
- 0x1f,0x01,0x8f,0x01,0x00,0x01,0x00,0x02,
- 0x01,0x00,0x00,0x78,0xe0,0x01,0x00,0x50,
- 0x00,0x18,}
- };
- #ifdef DE4X5_DEBUG
- static int de4x5_debug = DE4X5_DEBUG;
- #else
- /*static int de4x5_debug = (DEBUG_MII | DEBUG_SROM | DEBUG_PCICFG | DEBUG_MEDIA | DEBUG_VERSION);*/
- static int de4x5_debug = (DEBUG_MEDIA | DEBUG_VERSION);
- #endif
- /*
- ** Allow per adapter set up. For modules this is simply a command line
- ** parameter, e.g.:
- ** insmod de4x5 args='eth1:fdx autosense=BNC eth0:autosense=100Mb'.
- **
- ** For a compiled in driver, place e.g.
- ** #define DE4X5_PARM "eth0:fdx autosense=AUI eth2:autosense=TP"
- ** here
- */
- #ifdef DE4X5_PARM
- static char *args = DE4X5_PARM;
- #else
- static char *args;
- #endif
- struct parameters {
- bool fdx;
- int autosense;
- };
- #define DE4X5_AUTOSENSE_MS 250 /* msec autosense tick (DE500) */
- #define DE4X5_NDA 0xffe0 /* No Device (I/O) Address */
- /*
- ** Ethernet PROM defines
- */
- #define PROBE_LENGTH 32
- #define ETH_PROM_SIG 0xAA5500FFUL
- /*
- ** Ethernet Info
- */
- #define PKT_BUF_SZ 1536 /* Buffer size for each Tx/Rx buffer */
- #define IEEE802_3_SZ 1518 /* Packet + CRC */
- #define MAX_PKT_SZ 1514 /* Maximum ethernet packet length */
- #define MAX_DAT_SZ 1500 /* Maximum ethernet data length */
- #define MIN_DAT_SZ 1 /* Minimum ethernet data length */
- #define PKT_HDR_LEN 14 /* Addresses and data length info */
- #define FAKE_FRAME_LEN (MAX_PKT_SZ + 1)
- #define QUEUE_PKT_TIMEOUT (3*HZ) /* 3 second timeout */
- /*
- ** EISA bus defines
- */
- #define DE4X5_EISA_IO_PORTS 0x0c00 /* I/O port base address, slot 0 */
- #define DE4X5_EISA_TOTAL_SIZE 0x100 /* I/O address extent */
- #define EISA_ALLOWED_IRQ_LIST {5, 9, 10, 11}
- #define DE4X5_SIGNATURE {"DE425","DE434","DE435","DE450","DE500"}
- #define DE4X5_NAME_LENGTH 8
- static c_char *de4x5_signatures[] = DE4X5_SIGNATURE;
- /*
- ** Ethernet PROM defines for DC21040
- */
- #define PROBE_LENGTH 32
- #define ETH_PROM_SIG 0xAA5500FFUL
- /*
- ** PCI Bus defines
- */
- #define PCI_MAX_BUS_NUM 8
- #define DE4X5_PCI_TOTAL_SIZE 0x80 /* I/O address extent */
- #define DE4X5_CLASS_CODE 0x00020000 /* Network controller, Ethernet */
- /*
- ** 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 DE4X5_ALIGN4 ((u_long)4 - 1) /* 1 longword align */
- #define DE4X5_ALIGN8 ((u_long)8 - 1) /* 2 longword align */
- #define DE4X5_ALIGN16 ((u_long)16 - 1) /* 4 longword align */
- #define DE4X5_ALIGN32 ((u_long)32 - 1) /* 8 longword align */
- #define DE4X5_ALIGN64 ((u_long)64 - 1) /* 16 longword align */
- #define DE4X5_ALIGN128 ((u_long)128 - 1) /* 32 longword align */
- #define DE4X5_ALIGN DE4X5_ALIGN32 /* Keep the DC21040 happy... */
- #define DE4X5_CACHE_ALIGN CAL_16LONG
- #define DESC_SKIP_LEN DSL_0 /* Must agree with DESC_ALIGN */
- /*#define DESC_ALIGN u32 dummy[4]; / * Must agree with DESC_SKIP_LEN */
- #define DESC_ALIGN
- #ifndef DEC_ONLY /* See README.de4x5 for using this */
- static int dec_only;
- #else
- static int dec_only = 1;
- #endif
- /*
- ** DE4X5 IRQ ENABLE/DISABLE
- */
- #define ENABLE_IRQs { \
- imr |= lp->irq_en;\
- outl(imr, DE4X5_IMR); /* Enable the IRQs */\
- }
- #define DISABLE_IRQs {\
- imr = inl(DE4X5_IMR);\
- imr &= ~lp->irq_en;\
- outl(imr, DE4X5_IMR); /* Disable the IRQs */\
- }
- #define UNMASK_IRQs {\
- imr |= lp->irq_mask;\
- outl(imr, DE4X5_IMR); /* Unmask the IRQs */\
- }
- #define MASK_IRQs {\
- imr = inl(DE4X5_IMR);\
- imr &= ~lp->irq_mask;\
- outl(imr, DE4X5_IMR); /* Mask the IRQs */\
- }
- /*
- ** DE4X5 START/STOP
- */
- #define START_DE4X5 {\
- omr = inl(DE4X5_OMR);\
- omr |= OMR_ST | OMR_SR;\
- outl(omr, DE4X5_OMR); /* Enable the TX and/or RX */\
- }
- #define STOP_DE4X5 {\
- omr = inl(DE4X5_OMR);\
- omr &= ~(OMR_ST|OMR_SR);\
- outl(omr, DE4X5_OMR); /* Disable the TX and/or RX */ \
- }
- /*
- ** DE4X5 SIA RESET
- */
- #define RESET_SIA outl(0, DE4X5_SICR); /* Reset SIA connectivity regs */
- /*
- ** DE500 AUTOSENSE TIMER INTERVAL (MILLISECS)
- */
- #define DE4X5_AUTOSENSE_MS 250
- /*
- ** SROM Structure
- */
- struct de4x5_srom {
- char sub_vendor_id[2];
- char sub_system_id[2];
- char reserved[12];
- char id_block_crc;
- char reserved2;
- char version;
- char num_controllers;
- char ieee_addr[6];
- char info[100];
- short chksum;
- };
- #define SUB_VENDOR_ID 0x500a
- /*
- ** DE4X5 Descriptors. Make sure that all the RX buffers are contiguous
- ** and have sizes of both a power of 2 and a multiple of 4.
- ** A size of 256 bytes for each buffer could be chosen because over 90% of
- ** all packets in our network are <256 bytes long and 64 longword alignment
- ** is possible. 1536 showed better 'ttcp' performance. Take your pick. 32 TX
- ** descriptors are needed for machines with an ALPHA CPU.
- */
- #define NUM_RX_DESC 8 /* Number of RX descriptors */
- #define NUM_TX_DESC 32 /* Number of TX descriptors */
- #define RX_BUFF_SZ 1536 /* Power of 2 for kmalloc and */
- /* Multiple of 4 for DC21040 */
- /* Allows 512 byte alignment */
- struct de4x5_desc {
- volatile __le32 status;
- __le32 des1;
- __le32 buf;
- __le32 next;
- DESC_ALIGN
- };
- /*
- ** The DE4X5 private structure
- */
- #define DE4X5_PKT_STAT_SZ 16
- #define DE4X5_PKT_BIN_SZ 128 /* Should be >=100 unless you
- increase DE4X5_PKT_STAT_SZ */
- struct pkt_stats {
- u_int bins[DE4X5_PKT_STAT_SZ]; /* Private stats counters */
- u_int unicast;
- u_int multicast;
- u_int broadcast;
- u_int excessive_collisions;
- u_int tx_underruns;
- u_int excessive_underruns;
- u_int rx_runt_frames;
- u_int rx_collision;
- u_int rx_dribble;
- u_int rx_overflow;
- };
- struct de4x5_private {
- char adapter_name[80]; /* Adapter name */
- u_long interrupt; /* Aligned ISR flag */
- struct de4x5_desc *rx_ring; /* RX descriptor ring */
- struct de4x5_desc *tx_ring; /* TX descriptor ring */
- struct sk_buff *tx_skb[NUM_TX_DESC]; /* TX skb for freeing when sent */
- struct sk_buff *rx_skb[NUM_RX_DESC]; /* RX skb's */
- int rx_new, rx_old; /* RX descriptor ring pointers */
- int tx_new, tx_old; /* TX descriptor ring pointers */
- char setup_frame[SETUP_FRAME_LEN]; /* Holds MCA and PA info. */
- char frame[64]; /* Min sized packet for loopback*/
- spinlock_t lock; /* Adapter specific spinlock */
- struct net_device_stats stats; /* Public stats */
- struct pkt_stats pktStats; /* Private stats counters */
- char rxRingSize;
- char txRingSize;
- int bus; /* EISA or PCI */
- int bus_num; /* PCI Bus number */
- int device; /* Device number on PCI bus */
- int state; /* Adapter OPENED or CLOSED */
- int chipset; /* DC21040, DC21041 or DC21140 */
- s32 irq_mask; /* Interrupt Mask (Enable) bits */
- s32 irq_en; /* Summary interrupt bits */
- int media; /* Media (eg TP), mode (eg 100B)*/
- int c_media; /* Remember the last media conn */
- bool fdx; /* media full duplex flag */
- int linkOK; /* Link is OK */
- int autosense; /* Allow/disallow autosensing */
- bool tx_enable; /* Enable descriptor polling */
- int setup_f; /* Setup frame filtering type */
- int local_state; /* State within a 'media' state */
- struct mii_phy phy[DE4X5_MAX_PHY]; /* List of attached PHY devices */
- struct sia_phy sia; /* SIA PHY Information */
- int active; /* Index to active PHY device */
- int mii_cnt; /* Number of attached PHY's */
- int timeout; /* Scheduling counter */
- struct timer_list timer; /* Timer info for kernel */
- int tmp; /* Temporary global per card */
- struct {
- u_long lock; /* Lock the cache accesses */
- s32 csr0; /* Saved Bus Mode Register */
- s32 csr6; /* Saved Operating Mode Reg. */
- s32 csr7; /* Saved IRQ Mask Register */
- s32 gep; /* Saved General Purpose Reg. */
- s32 gepc; /* Control info for GEP */
- s32 csr13; /* Saved SIA Connectivity Reg. */
- s32 csr14; /* Saved SIA TX/RX Register */
- s32 csr15; /* Saved SIA General Register */
- int save_cnt; /* Flag if state already saved */
- struct sk_buff_head queue; /* Save the (re-ordered) skb's */
- } cache;
- struct de4x5_srom srom; /* A copy of the SROM */
- int cfrv; /* Card CFRV copy */
- int rx_ovf; /* Check for 'RX overflow' tag */
- bool useSROM; /* For non-DEC card use SROM */
- bool useMII; /* Infoblock using the MII */
- int asBitValid; /* Autosense bits in GEP? */
- int asPolarity; /* 0 => asserted high */
- int asBit; /* Autosense bit number in GEP */
- int defMedium; /* SROM default medium */
- int tcount; /* Last infoblock number */
- int infoblock_init; /* Initialised this infoblock? */
- int infoleaf_offset; /* SROM infoleaf for controller */
- s32 infoblock_csr6; /* csr6 value in SROM infoblock */
- int infoblock_media; /* infoblock media */
- int (*infoleaf_fn)(struct net_device *); /* Pointer to infoleaf function */
- u_char *rst; /* Pointer to Type 5 reset info */
- u_char ibn; /* Infoblock number */
- struct parameters params; /* Command line/ #defined params */
- struct device *gendev; /* Generic device */
- dma_addr_t dma_rings; /* DMA handle for rings */
- int dma_size; /* Size of the DMA area */
- char *rx_bufs; /* rx bufs on alpha, sparc, ... */
- };
- /*
- ** To get around certain poxy cards that don't provide an SROM
- ** for the second and more DECchip, I have to key off the first
- ** chip's address. I'll assume there's not a bad SROM iff:
- **
- ** o the chipset is the same
- ** o the bus number is the same and > 0
- ** o the sum of all the returned hw address bytes is 0 or 0x5fa
- **
- ** Also have to save the irq for those cards whose hardware designers
- ** can't follow the PCI to PCI Bridge Architecture spec.
- */
- static struct {
- int chipset;
- int bus;
- int irq;
- u_char addr[ETH_ALEN];
- } last = {0,};
- /*
- ** 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+txRingSize = tx_new+1 Full ring (wrapped condition)
- */
- #define TX_BUFFS_AVAIL ((lp->tx_old<=lp->tx_new)?\
- lp->tx_old+lp->txRingSize-lp->tx_new-1:\
- lp->tx_old -lp->tx_new-1)
- #define TX_PKT_PENDING (lp->tx_old != lp->tx_new)
- /*
- ** Public Functions
- */
- static int de4x5_open(struct net_device *dev);
- static netdev_tx_t de4x5_queue_pkt(struct sk_buff *skb,
- struct net_device *dev);
- static irqreturn_t de4x5_interrupt(int irq, void *dev_id);
- static int de4x5_close(struct net_device *dev);
- static struct net_device_stats *de4x5_get_stats(struct net_device *dev);
- static void de4x5_local_stats(struct net_device *dev, char *buf, int pkt_len);
- static void set_multicast_list(struct net_device *dev);
- static int de4x5_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
- /*
- ** Private functions
- */
- static int de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev);
- static int de4x5_init(struct net_device *dev);
- static int de4x5_sw_reset(struct net_device *dev);
- static int de4x5_rx(struct net_device *dev);
- static int de4x5_tx(struct net_device *dev);
- static void de4x5_ast(struct net_device *dev);
- static int de4x5_txur(struct net_device *dev);
- static int de4x5_rx_ovfc(struct net_device *dev);
- static int autoconf_media(struct net_device *dev);
- static void create_packet(struct net_device *dev, char *frame, int len);
- static void load_packet(struct net_device *dev, char *buf, u32 flags, struct sk_buff *skb);
- static int dc21040_autoconf(struct net_device *dev);
- static int dc21041_autoconf(struct net_device *dev);
- static int dc21140m_autoconf(struct net_device *dev);
- static int dc2114x_autoconf(struct net_device *dev);
- static int srom_autoconf(struct net_device *dev);
- static int de4x5_suspect_state(struct net_device *dev, int timeout, int prev_state, int (*fn)(struct net_device *, int), int (*asfn)(struct net_device *));
- static int dc21040_state(struct net_device *dev, int csr13, int csr14, int csr15, int timeout, int next_state, int suspect_state, int (*fn)(struct net_device *, int));
- static int test_media(struct net_device *dev, s32 irqs, s32 irq_mask, s32 csr13, s32 csr14, s32 csr15, s32 msec);
- static int test_for_100Mb(struct net_device *dev, int msec);
- static int wait_for_link(struct net_device *dev);
- static int test_mii_reg(struct net_device *dev, int reg, int mask, bool pol, long msec);
- static int is_spd_100(struct net_device *dev);
- static int is_100_up(struct net_device *dev);
- static int is_10_up(struct net_device *dev);
- static int is_anc_capable(struct net_device *dev);
- static int ping_media(struct net_device *dev, int msec);
- static struct sk_buff *de4x5_alloc_rx_buff(struct net_device *dev, int index, int len);
- static void de4x5_free_rx_buffs(struct net_device *dev);
- static void de4x5_free_tx_buffs(struct net_device *dev);
- static void de4x5_save_skbs(struct net_device *dev);
- static void de4x5_rst_desc_ring(struct net_device *dev);
- static void de4x5_cache_state(struct net_device *dev, int flag);
- static void de4x5_put_cache(struct net_device *dev, struct sk_buff *skb);
- static void de4x5_putb_cache(struct net_device *dev, struct sk_buff *skb);
- static struct sk_buff *de4x5_get_cache(struct net_device *dev);
- static void de4x5_setup_intr(struct net_device *dev);
- static void de4x5_init_connection(struct net_device *dev);
- static int de4x5_reset_phy(struct net_device *dev);
- static void reset_init_sia(struct net_device *dev, s32 sicr, s32 strr, s32 sigr);
- static int test_ans(struct net_device *dev, s32 irqs, s32 irq_mask, s32 msec);
- static int test_tp(struct net_device *dev, s32 msec);
- static int EISA_signature(char *name, struct device *device);
- static int PCI_signature(char *name, struct de4x5_private *lp);
- static void DevicePresent(struct net_device *dev, u_long iobase);
- static void enet_addr_rst(u_long aprom_addr);
- static int de4x5_bad_srom(struct de4x5_private *lp);
- static short srom_rd(u_long address, u_char offset);
- static void srom_latch(u_int command, u_long address);
- static void srom_command(u_int command, u_long address);
- static void srom_address(u_int command, u_long address, u_char offset);
- static short srom_data(u_int command, u_long address);
- /*static void srom_busy(u_int command, u_long address);*/
- static void sendto_srom(u_int command, u_long addr);
- static int getfrom_srom(u_long addr);
- static int srom_map_media(struct net_device *dev);
- static int srom_infoleaf_info(struct net_device *dev);
- static void srom_init(struct net_device *dev);
- static void srom_exec(struct net_device *dev, u_char *p);
- static int mii_rd(u_char phyreg, u_char phyaddr, u_long ioaddr);
- static void mii_wr(int data, u_char phyreg, u_char phyaddr, u_long ioaddr);
- static int mii_rdata(u_long ioaddr);
- static void mii_wdata(int data, int len, u_long ioaddr);
- static void mii_ta(u_long rw, u_long ioaddr);
- static int mii_swap(int data, int len);
- static void mii_address(u_char addr, u_long ioaddr);
- static void sendto_mii(u32 command, int data, u_long ioaddr);
- static int getfrom_mii(u32 command, u_long ioaddr);
- static int mii_get_oui(u_char phyaddr, u_long ioaddr);
- static int mii_get_phy(struct net_device *dev);
- static void SetMulticastFilter(struct net_device *dev);
- static int get_hw_addr(struct net_device *dev);
- static void srom_repair(struct net_device *dev, int card);
- static int test_bad_enet(struct net_device *dev, int status);
- static int an_exception(struct de4x5_private *lp);
- static char *build_setup_frame(struct net_device *dev, int mode);
- static void disable_ast(struct net_device *dev);
- static long de4x5_switch_mac_port(struct net_device *dev);
- static int gep_rd(struct net_device *dev);
- static void gep_wr(s32 data, struct net_device *dev);
- static void yawn(struct net_device *dev, int state);
- static void de4x5_parse_params(struct net_device *dev);
- static void de4x5_dbg_open(struct net_device *dev);
- static void de4x5_dbg_mii(struct net_device *dev, int k);
- static void de4x5_dbg_media(struct net_device *dev);
- static void de4x5_dbg_srom(struct de4x5_srom *p);
- static void de4x5_dbg_rx(struct sk_buff *skb, int len);
- static int de4x5_strncmp(char *a, char *b, int n);
- static int dc21041_infoleaf(struct net_device *dev);
- static int dc21140_infoleaf(struct net_device *dev);
- static int dc21142_infoleaf(struct net_device *dev);
- static int dc21143_infoleaf(struct net_device *dev);
- static int type0_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int type1_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int type2_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int type3_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int type4_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int type5_infoblock(struct net_device *dev, u_char count, u_char *p);
- static int compact_infoblock(struct net_device *dev, u_char count, u_char *p);
- /*
- ** Note now that module autoprobing is allowed under EISA and PCI. The
- ** IRQ lines will not be auto-detected; instead I'll rely on the BIOSes
- ** to "do the right thing".
- */
- static int io=0x0;/* EDIT THIS LINE FOR YOUR CONFIGURATION IF NEEDED */
- module_param(io, int, 0);
- module_param(de4x5_debug, int, 0);
- module_param(dec_only, int, 0);
- module_param(args, charp, 0);
- MODULE_PARM_DESC(io, "de4x5 I/O base address");
- MODULE_PARM_DESC(de4x5_debug, "de4x5 debug mask");
- MODULE_PARM_DESC(dec_only, "de4x5 probe only for Digital boards (0-1)");
- MODULE_PARM_DESC(args, "de4x5 full duplex and media type settings; see de4x5.c for details");
- MODULE_LICENSE("GPL");
- /*
- ** List the SROM infoleaf functions and chipsets
- */
- struct InfoLeaf {
- int chipset;
- int (*fn)(struct net_device *);
- };
- static struct InfoLeaf infoleaf_array[] = {
- {DC21041, dc21041_infoleaf},
- {DC21140, dc21140_infoleaf},
- {DC21142, dc21142_infoleaf},
- {DC21143, dc21143_infoleaf}
- };
- #define INFOLEAF_SIZE ARRAY_SIZE(infoleaf_array)
- /*
- ** List the SROM info block functions
- */
- static int (*dc_infoblock[])(struct net_device *dev, u_char, u_char *) = {
- type0_infoblock,
- type1_infoblock,
- type2_infoblock,
- type3_infoblock,
- type4_infoblock,
- type5_infoblock,
- compact_infoblock
- };
- #define COMPACT (ARRAY_SIZE(dc_infoblock) - 1)
- /*
- ** Miscellaneous defines...
- */
- #define RESET_DE4X5 {\
- int i;\
- i=inl(DE4X5_BMR);\
- mdelay(1);\
- outl(i | BMR_SWR, DE4X5_BMR);\
- mdelay(1);\
- outl(i, DE4X5_BMR);\
- mdelay(1);\
- for (i=0;i<5;i++) {inl(DE4X5_BMR); mdelay(1);}\
- mdelay(1);\
- }
- #define PHY_HARD_RESET {\
- outl(GEP_HRST, DE4X5_GEP); /* Hard RESET the PHY dev. */\
- mdelay(1); /* Assert for 1ms */\
- outl(0x00, DE4X5_GEP);\
- mdelay(2); /* Wait for 2ms */\
- }
- static const struct net_device_ops de4x5_netdev_ops = {
- .ndo_open = de4x5_open,
- .ndo_stop = de4x5_close,
- .ndo_start_xmit = de4x5_queue_pkt,
- .ndo_get_stats = de4x5_get_stats,
- .ndo_set_multicast_list = set_multicast_list,
- .ndo_do_ioctl = de4x5_ioctl,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_set_mac_address= eth_mac_addr,
- .ndo_validate_addr = eth_validate_addr,
- };
- static int __devinit
- de4x5_hw_init(struct net_device *dev, u_long iobase, struct device *gendev)
- {
- char name[DE4X5_NAME_LENGTH + 1];
- struct de4x5_private *lp = netdev_priv(dev);
- struct pci_dev *pdev = NULL;
- int i, status=0;
- dev_set_drvdata(gendev, dev);
- /* Ensure we're not sleeping */
- if (lp->bus == EISA) {
- outb(WAKEUP, PCI_CFPM);
- } else {
- pdev = to_pci_dev (gendev);
- pci_write_config_byte(pdev, PCI_CFDA_PSM, WAKEUP);
- }
- mdelay(10);
- RESET_DE4X5;
- if ((inl(DE4X5_STS) & (STS_TS | STS_RS)) != 0) {
- return -ENXIO; /* Hardware could not reset */
- }
- /*
- ** Now find out what kind of DC21040/DC21041/DC21140 board we have.
- */
- lp->useSROM = false;
- if (lp->bus == PCI) {
- PCI_signature(name, lp);
- } else {
- EISA_signature(name, gendev);
- }
- if (*name == '\0') { /* Not found a board signature */
- return -ENXIO;
- }
- dev->base_addr = iobase;
- printk ("%s: %s at 0x%04lx", dev_name(gendev), name, iobase);
- status = get_hw_addr(dev);
- printk(", h/w address %