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BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg13 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott12 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni15 years
demoFurther refinementsJonathan Herman14 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott12 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds15 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg16 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott13 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott13 years
stagingFix tracepoint compilation errorFelipe Cerqueira13 years
test9/23/2016Namhoon Kim9 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni16 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg10 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg14 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni14 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott12 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott12 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott12 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott15 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott15 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott13 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg14 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott13 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott13 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg15 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott15 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
wip-edf-hsblast tested versionJonathan Herman14 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott13 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott15 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott15 years
wip-edzl-revisedClean up comments.Glenn Elliott15 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman15 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg15 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson15 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg15 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott14 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott13 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott14 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott13 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott11 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott14 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim7 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott15 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott13 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman13 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni13 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman12 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson15 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang10 years
wip-mcrit-maccosmeticMac Mollison15 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott13 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott15 years
wip-paiSome cleanup of PAIGlenn Elliott14 years
wip-percore-lib9/21/2016Namhoon Kim9 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott12 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim12 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott15 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott13 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott15 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott13 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman13 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim9 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim9 years
wip-shared-memInitial commit for shared libraryNamhoon Kim9 years
wip-splitting-jericksoFix release behaviorJeremy Erickson13 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson13 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna15 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni15 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni14 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg10 years
2013.1commit bcaacec1ca...Glenn Elliott12 years
2012.3commit c158b5fbe4...Jonathan Herman13 years
2012.2commit b53c479a0f...Glenn Elliott13 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg14 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna14 years
2011.1commit d11808b5c6...Christopher Kenna15 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds15 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds15 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds15 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds15 years
v2.6.36commit f6f94e2ab1...Linus Torvalds15 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg15 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds15 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds15 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds15 years
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2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
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v2.6.15-rc3commit 624f54be20...Linus Torvalds20 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds20 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds20 years
v2.6.14commit 741b2252a5...Linus Torvalds20 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds20 years
v2.6.14-rc4commit 907a426179...Linus Torvalds20 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds20 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds20 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds20 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds20 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds20 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds20 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds20 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
l opt">(jiffies - timeout >= 40) return -1; return 0; } static int __init get_eeprom_data(struct net_device *dev, int off, int len, int *buffer) { int i; if (net_debug > 3) printk("EEPROM data from %x for %x:\n",off,len); for (i = 0; i < len; i++) { if (wait_eeprom_ready(dev) < 0) return -1; /* Now send the EEPROM read command and EEPROM location to read */ writereg(dev, PP_EECMD, (off + i) | EEPROM_READ_CMD); if (wait_eeprom_ready(dev) < 0) return -1; buffer[i] = readreg(dev, PP_EEData); if (net_debug > 3) printk("%04x ", buffer[i]); } if (net_debug > 3) printk("\n"); return 0; } static int __init get_eeprom_cksum(int off, int len, int *buffer) { int i, cksum; cksum = 0; for (i = 0; i < len; i++) cksum += buffer[i]; cksum &= 0xffff; if (cksum == 0) return 0; return -1; } #ifdef CONFIG_NET_POLL_CONTROLLER /* * Polling receive - used by netconsole and other diagnostic tools * to allow network i/o with interrupts disabled. */ static void net_poll_controller(struct net_device *dev) { disable_irq(dev->irq); net_interrupt(dev->irq, dev); enable_irq(dev->irq); } #endif /* This is the real probe routine. Linux has a history of friendly device probes on the ISA bus. A good device probes avoids doing writes, and verifies that the correct device exists and functions. Return 0 on success. */ static int __init cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) { struct net_local *lp = netdev_priv(dev); static unsigned version_printed; int i; int tmp; unsigned rev_type = 0; int eeprom_buff[CHKSUM_LEN]; int retval; SET_MODULE_OWNER(dev); /* Initialize the device structure. */ if (!modular) { memset(lp, 0, sizeof(*lp)); spin_lock_init(&lp->lock); #ifndef MODULE #if ALLOW_DMA if (g_cs89x0_dma) { lp->use_dma = 1; lp->dma = g_cs89x0_dma; lp->dmasize = 16; /* Could make this an option... */ } #endif lp->force = g_cs89x0_media__force; #endif } #ifdef CONFIG_ARCH_PNX010X initialize_ebi(); /* Map GPIO registers for the pins connected to the CS8900a. */ if (map_cirrus_gpio() < 0) return -ENODEV; reset_cirrus(); /* Map event-router registers. */ if (map_event_router() < 0) return -ENODEV; enable_cirrus_irq(); unmap_cirrus_gpio(); unmap_event_router(); dev->base_addr = ioaddr; for (i = 0 ; i < 3 ; i++) readreg(dev, 0); #endif /* Grab the region so we can find another board if autoIRQ fails. */ /* WTF is going on here? */ if (!request_region(ioaddr & ~3, NETCARD_IO_EXTENT, DRV_NAME)) { printk(KERN_ERR "%s: request_region(0x%x, 0x%x) failed\n", DRV_NAME, ioaddr, NETCARD_IO_EXTENT); retval = -EBUSY; goto out1; } #ifdef CONFIG_SH_HICOSH4 /* truely reset the chip */ writeword(ioaddr, ADD_PORT, 0x0114); writeword(ioaddr, DATA_PORT, 0x0040); #endif /* if they give us an odd I/O address, then do ONE write to the address port, to get it back to address zero, where we expect to find the EISA signature word. An IO with a base of 0x3 will skip the test for the ADD_PORT. */ if (ioaddr & 1) { if (net_debug > 1) printk(KERN_INFO "%s: odd ioaddr 0x%x\n", dev->name, ioaddr); if ((ioaddr & 2) != 2) if ((readword(ioaddr & ~3, ADD_PORT) & ADD_MASK) != ADD_SIG) { printk(KERN_ERR "%s: bad signature 0x%x\n", dev->name, readword(ioaddr & ~3, ADD_PORT)); retval = -ENODEV; goto out2; } } ioaddr &= ~3; printk(KERN_DEBUG "PP_addr at %x[%x]: 0x%x\n", ioaddr, ADD_PORT, readword(ioaddr, ADD_PORT)); writeword(ioaddr, ADD_PORT, PP_ChipID); tmp = readword(ioaddr, DATA_PORT); if (tmp != CHIP_EISA_ID_SIG) { printk(KERN_DEBUG "%s: incorrect signature at %x[%x]: 0x%x!=" CHIP_EISA_ID_SIG_STR "\n", dev->name, ioaddr, DATA_PORT, tmp); retval = -ENODEV; goto out2; } /* Fill in the 'dev' fields. */ dev->base_addr = ioaddr; /* get the chip type */ rev_type = readreg(dev, PRODUCT_ID_ADD); lp->chip_type = rev_type &~ REVISON_BITS; lp->chip_revision = ((rev_type & REVISON_BITS) >> 8) + 'A'; /* Check the chip type and revision in order to set the correct send command CS8920 revision C and CS8900 revision F can use the faster send. */ lp->send_cmd = TX_AFTER_381; if (lp->chip_type == CS8900 && lp->chip_revision >= 'F') lp->send_cmd = TX_NOW; if (lp->chip_type != CS8900 && lp->chip_revision >= 'C') lp->send_cmd = TX_NOW; if (net_debug && version_printed++ == 0) printk(version); printk(KERN_INFO "%s: cs89%c0%s rev %c found at %#3lx ", dev->name, lp->chip_type==CS8900?'0':'2', lp->chip_type==CS8920M?"M":"", lp->chip_revision, dev->base_addr); reset_chip(dev); /* Here we read the current configuration of the chip. If there is no Extended EEPROM then the idea is to not disturb the chip configuration, it should have been correctly setup by automatic EEPROM read on reset. So, if the chip says it read the EEPROM the driver will always do *something* instead of complain that adapter_cnf is 0. */ #ifdef CONFIG_SH_HICOSH4 if (1) { /* For the HiCO.SH4 board, things are different: we don't have EEPROM, but there is some data in flash, so we go get it there directly (MAC). */ __u16 *confd; short cnt; if (((* (volatile __u32 *) 0xa0013ff0) & 0x00ffffff) == 0x006c3000) { confd = (__u16*) 0xa0013fc0; } else { confd = (__u16*) 0xa001ffc0; } cnt = (*confd++ & 0x00ff) >> 1; while (--cnt > 0) { __u16 j = *confd++; switch (j & 0x0fff) { case PP_IA: for (i = 0; i < ETH_ALEN/2; i++) { dev->dev_addr[i*2] = confd[i] & 0xFF; dev->dev_addr[i*2+1] = confd[i] >> 8; } break; } j = (j >> 12) + 1; confd += j; cnt -= j; } } else #endif if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) == (EEPROM_OK|EEPROM_PRESENT)) { /* Load the MAC. */ for (i=0; i < ETH_ALEN/2; i++) { unsigned int Addr; Addr = readreg(dev, PP_IA+i*2); dev->dev_addr[i*2] = Addr & 0xFF; dev->dev_addr[i*2+1] = Addr >> 8; } /* Load the Adapter Configuration. Note: Barring any more specific information from some other source (ie EEPROM+Schematics), we would not know how to operate a 10Base2 interface on the AUI port. However, since we do read the status of HCB1 and use settings that always result in calls to control_dc_dc(dev,0) a BNC interface should work if the enable pin (dc/dc converter) is on HCB1. It will be called AUI however. */ lp->adapter_cnf = 0; i = readreg(dev, PP_LineCTL); /* Preserve the setting of the HCB1 pin. */ if ((i & (HCB1 | HCB1_ENBL)) == (HCB1 | HCB1_ENBL)) lp->adapter_cnf |= A_CNF_DC_DC_POLARITY; /* Save the sqelch bit */ if ((i & LOW_RX_SQUELCH) == LOW_RX_SQUELCH) lp->adapter_cnf |= A_CNF_EXTND_10B_2 | A_CNF_LOW_RX_SQUELCH; /* Check if the card is in 10Base-t only mode */ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == 0) lp->adapter_cnf |= A_CNF_10B_T | A_CNF_MEDIA_10B_T; /* Check if the card is in AUI only mode */ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUI_ONLY) lp->adapter_cnf |= A_CNF_AUI | A_CNF_MEDIA_AUI; /* Check if the card is in Auto mode. */ if ((i & (AUI_ONLY | AUTO_AUI_10BASET)) == AUTO_AUI_10BASET) lp->adapter_cnf |= A_CNF_AUI | A_CNF_10B_T | A_CNF_MEDIA_AUI | A_CNF_MEDIA_10B_T | A_CNF_MEDIA_AUTO; if (net_debug > 1) printk(KERN_INFO "%s: PP_LineCTL=0x%x, adapter_cnf=0x%x\n", dev->name, i, lp->adapter_cnf); /* IRQ. Other chips already probe, see below. */ if (lp->chip_type == CS8900) lp->isa_config = readreg(dev, PP_CS8900_ISAINT) & INT_NO_MASK; printk( "[Cirrus EEPROM] "); } printk("\n"); /* First check to see if an EEPROM is attached. */ #ifdef CONFIG_SH_HICOSH4 /* no EEPROM on HiCO, don't hazzle with it here */ if (1) { printk(KERN_NOTICE "cs89x0: No EEPROM on HiCO.SH4\n"); } else #endif if ((readreg(dev, PP_SelfST) & EEPROM_PRESENT) == 0) printk(KERN_WARNING "cs89x0: No EEPROM, relying on command line....\n"); else if (get_eeprom_data(dev, START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { printk(KERN_WARNING "\ncs89x0: EEPROM read failed, relying on command line.\n"); } else if (get_eeprom_cksum(START_EEPROM_DATA,CHKSUM_LEN,eeprom_buff) < 0) { /* Check if the chip was able to read its own configuration starting at 0 in the EEPROM*/ if ((readreg(dev, PP_SelfST) & (EEPROM_OK | EEPROM_PRESENT)) != (EEPROM_OK|EEPROM_PRESENT)) printk(KERN_WARNING "cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command line\n"); } else { /* This reads an extended EEPROM that is not documented in the CS8900 datasheet. */ /* get transmission control word but keep the autonegotiation bits */ if (!lp->auto_neg_cnf) lp->auto_neg_cnf = eeprom_buff[AUTO_NEG_CNF_OFFSET/2]; /* Store adapter configuration */ if (!lp->adapter_cnf) lp->adapter_cnf = eeprom_buff[ADAPTER_CNF_OFFSET/2]; /* Store ISA configuration */ lp->isa_config = eeprom_buff[ISA_CNF_OFFSET/2]; dev->mem_start = eeprom_buff[PACKET_PAGE_OFFSET/2] << 8; /* eeprom_buff has 32-bit ints, so we can't just memcpy it */ /* store the initial memory base address */ for (i = 0; i < ETH_ALEN/2; i++) { dev->dev_addr[i*2] = eeprom_buff[i]; dev->dev_addr[i*2+1] = eeprom_buff[i] >> 8; } if (net_debug > 1) printk(KERN_DEBUG "%s: new adapter_cnf: 0x%x\n", dev->name, lp->adapter_cnf); } /* allow them to force multiple transceivers. If they force multiple, autosense */ { int count = 0; if (lp->force & FORCE_RJ45) {lp->adapter_cnf |= A_CNF_10B_T; count++; } if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_AUI; count++; } if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_10B_2; count++; } if (count > 1) {lp->adapter_cnf |= A_CNF_MEDIA_AUTO; } else if (lp->force & FORCE_RJ45){lp->adapter_cnf |= A_CNF_MEDIA_10B_T; } else if (lp->force & FORCE_AUI) {lp->adapter_cnf |= A_CNF_MEDIA_AUI; } else if (lp->force & FORCE_BNC) {lp->adapter_cnf |= A_CNF_MEDIA_10B_2; } } if (net_debug > 1) printk(KERN_DEBUG "%s: after force 0x%x, adapter_cnf=0x%x\n", dev->name, lp->force, lp->adapter_cnf); /* FIXME: We don't let you set dc-dc polarity or low RX squelch from the command line: add it here */ /* FIXME: We don't let you set the IMM bit from the command line: add it to lp->auto_neg_cnf here */ /* FIXME: we don't set the Ethernet address on the command line. Use ifconfig IFACE hw ether AABBCCDDEEFF */ printk(KERN_INFO "cs89x0 media %s%s%s", (lp->adapter_cnf & A_CNF_10B_T)?"RJ-45,":"", (lp->adapter_cnf & A_CNF_AUI)?"AUI,":"", (lp->adapter_cnf & A_CNF_10B_2)?"BNC,":""); lp->irq_map = 0xffff; /* If this is a CS8900 then no pnp soft */ if (lp->chip_type != CS8900 && /* Check if the ISA IRQ has been set */ (i = readreg(dev, PP_CS8920_ISAINT) & 0xff, (i != 0 && i < CS8920_NO_INTS))) { if (!dev->irq) dev->irq = i; } else { i = lp->isa_config & INT_NO_MASK; if (lp->chip_type == CS8900) { #if defined(CONFIG_MACH_IXDP2351) || defined(CONFIG_ARCH_IXDP2X01) || defined(CONFIG_ARCH_PNX010X) i = cs8900_irq_map[0]; #else /* Translate the IRQ using the IRQ mapping table. */ if (i >= sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0])) printk("\ncs89x0: invalid ISA interrupt number %d\n", i); else i = cs8900_irq_map[i]; lp->irq_map = CS8900_IRQ_MAP; /* fixed IRQ map for CS8900 */ } else { int irq_map_buff[IRQ_MAP_LEN/2]; if (get_eeprom_data(dev, IRQ_MAP_EEPROM_DATA, IRQ_MAP_LEN/2, irq_map_buff) >= 0) { if ((irq_map_buff[0] & 0xff) == PNP_IRQ_FRMT) lp->irq_map = (irq_map_buff[0]>>8) | (irq_map_buff[1] << 8); } #endif } if (!dev->irq) dev->irq = i; } printk(" IRQ %d", dev->irq); #if ALLOW_DMA if (lp->use_dma) { get_dma_channel(dev); printk(", DMA %d", dev->dma); } else #endif { printk(", programmed I/O"); } /* print the ethernet address. */ printk(", MAC"); for (i = 0; i < ETH_ALEN; i++) { printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]); } dev->open = net_open; dev->stop = net_close; dev->tx_timeout = net_timeout; dev->watchdog_timeo = HZ; dev->hard_start_xmit = net_send_packet; dev->get_stats = net_get_stats; dev->set_multicast_list = set_multicast_list; dev->set_mac_address = set_mac_address; #ifdef CONFIG_NET_POLL_CONTROLLER dev->poll_controller = net_poll_controller; #endif printk("\n"); if (net_debug) printk("cs89x0_probe1() successful\n"); retval = register_netdev(dev); if (retval) goto out3; return 0; out3: writeword(dev->base_addr, ADD_PORT, PP_ChipID); out2: release_region(ioaddr & ~3, NETCARD_IO_EXTENT); out1: return retval; } /********************************* * This page contains DMA routines **********************************/ #if ALLOW_DMA #define dma_page_eq(ptr1, ptr2) ((long)(ptr1)>>17 == (long)(ptr2)>>17) static void get_dma_channel(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (lp->dma) { dev->dma = lp->dma; lp->isa_config |= ISA_RxDMA; } else { if ((lp->isa_config & ANY_ISA_DMA) == 0) return; dev->dma = lp->isa_config & DMA_NO_MASK; if (lp->chip_type == CS8900) dev->dma += 5; if (dev->dma < 5 || dev->dma > 7) { lp->isa_config &= ~ANY_ISA_DMA; return; } } return; } static void write_dma(struct net_device *dev, int chip_type, int dma) { struct net_local *lp = netdev_priv(dev); if ((lp->isa_config & ANY_ISA_DMA) == 0) return; if (chip_type == CS8900) { writereg(dev, PP_CS8900_ISADMA, dma-5); } else { writereg(dev, PP_CS8920_ISADMA, dma); } } static void set_dma_cfg(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (lp->use_dma) { if ((lp->isa_config & ANY_ISA_DMA) == 0) { if (net_debug > 3) printk("set_dma_cfg(): no DMA\n"); return; } if (lp->isa_config & ISA_RxDMA) { lp->curr_rx_cfg |= RX_DMA_ONLY; if (net_debug > 3) printk("set_dma_cfg(): RX_DMA_ONLY\n"); } else { lp->curr_rx_cfg |= AUTO_RX_DMA; /* not that we support it... */ if (net_debug > 3) printk("set_dma_cfg(): AUTO_RX_DMA\n"); } } } static int dma_bufcfg(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (lp->use_dma) return (lp->isa_config & ANY_ISA_DMA)? RX_DMA_ENBL : 0; else return 0; } static int dma_busctl(struct net_device *dev) { int retval = 0; struct net_local *lp = netdev_priv(dev); if (lp->use_dma) { if (lp->isa_config & ANY_ISA_DMA) retval |= RESET_RX_DMA; /* Reset the DMA pointer */ if (lp->isa_config & DMA_BURST) retval |= DMA_BURST_MODE; /* Does ISA config specify DMA burst ? */ if (lp->dmasize == 64) retval |= RX_DMA_SIZE_64K; /* did they ask for 64K? */ retval |= MEMORY_ON; /* we need memory enabled to use DMA. */ } return retval; } static void dma_rx(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); struct sk_buff *skb; int status, length; unsigned char *bp = lp->rx_dma_ptr; status = bp[0] + (bp[1]<<8); length = bp[2] + (bp[3]<<8); bp += 4; if (net_debug > 5) { printk( "%s: receiving DMA packet at %lx, status %x, length %x\n", dev->name, (unsigned long)bp, status, length); } if ((status & RX_OK) == 0) { count_rx_errors(status, lp); goto skip_this_frame; } /* Malloc up new buffer. */ skb = dev_alloc_skb(length + 2); if (skb == NULL) { if (net_debug) /* I don't think we want to do this to a stressed system */ printk("%s: Memory squeeze, dropping packet.\n", dev->name); lp->stats.rx_dropped++; /* AKPM: advance bp to the next frame */ skip_this_frame: bp += (length + 3) & ~3; if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; lp->rx_dma_ptr = bp; return; } skb_reserve(skb, 2); /* longword align L3 header */ if (bp + length > lp->end_dma_buff) { int semi_cnt = lp->end_dma_buff - bp; memcpy(skb_put(skb,semi_cnt), bp, semi_cnt); memcpy(skb_put(skb,length - semi_cnt), lp->dma_buff, length - semi_cnt); } else { memcpy(skb_put(skb,length), bp, length); } bp += (length + 3) & ~3; if (bp >= lp->end_dma_buff) bp -= lp->dmasize*1024; lp->rx_dma_ptr = bp; if (net_debug > 3) { printk( "%s: received %d byte DMA packet of type %x\n", dev->name, length, (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); } skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); dev->last_rx = jiffies; lp->stats.rx_packets++; lp->stats.rx_bytes += length; } #endif /* ALLOW_DMA */ void __init reset_chip(struct net_device *dev) { #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) struct net_local *lp = netdev_priv(dev); int ioaddr = dev->base_addr; #endif int reset_start_time; writereg(dev, PP_SelfCTL, readreg(dev, PP_SelfCTL) | POWER_ON_RESET); /* wait 30 ms */ msleep(30); #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) if (lp->chip_type != CS8900) { /* Hardware problem requires PNP registers to be reconfigured after a reset */ writeword(ioaddr, ADD_PORT, PP_CS8920_ISAINT); outb(dev->irq, ioaddr + DATA_PORT); outb(0, ioaddr + DATA_PORT + 1); writeword(ioaddr, ADD_PORT, PP_CS8920_ISAMemB); outb((dev->mem_start >> 16) & 0xff, ioaddr + DATA_PORT); outb((dev->mem_start >> 8) & 0xff, ioaddr + DATA_PORT + 1); } #endif /* IXDP2x01 */ /* Wait until the chip is reset */ reset_start_time = jiffies; while( (readreg(dev, PP_SelfST) & INIT_DONE) == 0 && jiffies - reset_start_time < 2) ; } static void control_dc_dc(struct net_device *dev, int on_not_off) { struct net_local *lp = netdev_priv(dev); unsigned int selfcontrol; int timenow = jiffies; /* control the DC to DC convertor in the SelfControl register. Note: This is hooked up to a general purpose pin, might not always be a DC to DC convertor. */ selfcontrol = HCB1_ENBL; /* Enable the HCB1 bit as an output */ if (((lp->adapter_cnf & A_CNF_DC_DC_POLARITY) != 0) ^ on_not_off) selfcontrol |= HCB1; else selfcontrol &= ~HCB1; writereg(dev, PP_SelfCTL, selfcontrol); /* Wait for the DC/DC converter to power up - 500ms */ while (jiffies - timenow < HZ) ; } #define DETECTED_NONE 0 #define DETECTED_RJ45H 1 #define DETECTED_RJ45F 2 #define DETECTED_AUI 3 #define DETECTED_BNC 4 static int detect_tp(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); int timenow = jiffies; int fdx; if (net_debug > 1) printk("%s: Attempting TP\n", dev->name); /* If connected to another full duplex capable 10-Base-T card the link pulses seem to be lost when the auto detect bit in the LineCTL is set. To overcome this the auto detect bit will be cleared whilst testing the 10-Base-T interface. This would not be necessary for the sparrow chip but is simpler to do it anyway. */ writereg(dev, PP_LineCTL, lp->linectl &~ AUI_ONLY); control_dc_dc(dev, 0); /* Delay for the hardware to work out if the TP cable is present - 150ms */ for (timenow = jiffies; jiffies - timenow < 15; ) ; if ((readreg(dev, PP_LineST) & LINK_OK) == 0) return DETECTED_NONE; if (lp->chip_type == CS8900) { switch (lp->force & 0xf0) { #if 0 case FORCE_AUTO: printk("%s: cs8900 doesn't autonegotiate\n",dev->name); return DETECTED_NONE; #endif /* CS8900 doesn't support AUTO, change to HALF*/ case FORCE_AUTO: lp->force &= ~FORCE_AUTO; lp->force |= FORCE_HALF; break; case FORCE_HALF: break; case FORCE_FULL: writereg(dev, PP_TestCTL, readreg(dev, PP_TestCTL) | FDX_8900); break; } fdx = readreg(dev, PP_TestCTL) & FDX_8900; } else { switch (lp->force & 0xf0) { case FORCE_AUTO: lp->auto_neg_cnf = AUTO_NEG_ENABLE; break; case FORCE_HALF: lp->auto_neg_cnf = 0; break; case FORCE_FULL: lp->auto_neg_cnf = RE_NEG_NOW | ALLOW_FDX; break; } writereg(dev, PP_AutoNegCTL, lp->auto_neg_cnf & AUTO_NEG_MASK); if ((lp->auto_neg_cnf & AUTO_NEG_BITS) == AUTO_NEG_ENABLE) { printk(KERN_INFO "%s: negotiating duplex...\n",dev->name); while (readreg(dev, PP_AutoNegST) & AUTO_NEG_BUSY) { if (jiffies - timenow > 4000) { printk(KERN_ERR "**** Full / half duplex auto-negotiation timed out ****\n"); break; } } } fdx = readreg(dev, PP_AutoNegST) & FDX_ACTIVE; } if (fdx) return DETECTED_RJ45F; else return DETECTED_RJ45H; } /* send a test packet - return true if carrier bits are ok */ static int send_test_pkt(struct net_device *dev) { char test_packet[] = { 0,0,0,0,0,0, 0,0,0,0,0,0, 0, 46, /* A 46 in network order */ 0, 0, /* DSAP=0 & SSAP=0 fields */ 0xf3, 0 /* Control (Test Req + P bit set) */ }; long timenow = jiffies; writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_TX_ON); memcpy(test_packet, dev->dev_addr, ETH_ALEN); memcpy(test_packet+ETH_ALEN, dev->dev_addr, ETH_ALEN); writeword(dev->base_addr, TX_CMD_PORT, TX_AFTER_ALL); writeword(dev->base_addr, TX_LEN_PORT, ETH_ZLEN); /* Test to see if the chip has allocated memory for the packet */ while (jiffies - timenow < 5) if (readreg(dev, PP_BusST) & READY_FOR_TX_NOW) break; if (jiffies - timenow >= 5) return 0; /* this shouldn't happen */ /* Write the contents of the packet */ writewords(dev->base_addr, TX_FRAME_PORT,test_packet,(ETH_ZLEN+1) >>1); if (net_debug > 1) printk("Sending test packet "); /* wait a couple of jiffies for packet to be received */ for (timenow = jiffies; jiffies - timenow < 3; ) ; if ((readreg(dev, PP_TxEvent) & TX_SEND_OK_BITS) == TX_OK) { if (net_debug > 1) printk("succeeded\n"); return 1; } if (net_debug > 1) printk("failed\n"); return 0; } static int detect_aui(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (net_debug > 1) printk("%s: Attempting AUI\n", dev->name); control_dc_dc(dev, 0); writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); if (send_test_pkt(dev)) return DETECTED_AUI; else return DETECTED_NONE; } static int detect_bnc(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (net_debug > 1) printk("%s: Attempting BNC\n", dev->name); control_dc_dc(dev, 1); writereg(dev, PP_LineCTL, (lp->linectl &~ AUTO_AUI_10BASET) | AUI_ONLY); if (send_test_pkt(dev)) return DETECTED_BNC; else return DETECTED_NONE; } static void write_irq(struct net_device *dev, int chip_type, int irq) { int i; if (chip_type == CS8900) { /* Search the mapping table for the corresponding IRQ pin. */ for (i = 0; i != sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0]); i++) if (cs8900_irq_map[i] == irq) break; /* Not found */ if (i == sizeof(cs8900_irq_map)/sizeof(cs8900_irq_map[0])) i = 3; writereg(dev, PP_CS8900_ISAINT, i); } else { writereg(dev, PP_CS8920_ISAINT, irq); } } /* Open/initialize the board. This is called (in the current kernel) sometime after booting when the 'ifconfig' program is run. This routine should set everything up anew at each open, even registers that "should" only need to be set once at boot, so that there is non-reboot way to recover if something goes wrong. */ /* AKPM: do we need to do any locking here? */ static int net_open(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); int result = 0; int i; int ret; #if !defined(CONFIG_SH_HICOSH4) && !defined(CONFIG_ARCH_PNX010X) /* uses irq#1, so this won't work */ if (dev->irq < 2) { /* Allow interrupts to be generated by the chip */ /* Cirrus' release had this: */ #if 0 writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); #endif /* And 2.3.47 had this: */ writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); for (i = 2; i < CS8920_NO_INTS; i++) { if ((1 << i) & lp->irq_map) { if (request_irq(i, net_interrupt, 0, dev->name, dev) == 0) { dev->irq = i; write_irq(dev, lp->chip_type, i); /* writereg(dev, PP_BufCFG, GENERATE_SW_INTERRUPT); */ break; } } } if (i >= CS8920_NO_INTS) { writereg(dev, PP_BusCTL, 0); /* disable interrupts. */ printk(KERN_ERR "cs89x0: can't get an interrupt\n"); ret = -EAGAIN; goto bad_out; } } else #endif { #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) && !defined(CONFIG_ARCH_PNX010X) if (((1 << dev->irq) & lp->irq_map) == 0) { printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n", dev->name, dev->irq, lp->irq_map); ret = -EAGAIN; goto bad_out; } #endif /* FIXME: Cirrus' release had this: */ writereg(dev, PP_BusCTL, readreg(dev, PP_BusCTL)|ENABLE_IRQ ); /* And 2.3.47 had this: */ #if 0 writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); #endif write_irq(dev, lp->chip_type, dev->irq); ret = request_irq(dev->irq, &net_interrupt, 0, dev->name, dev); if (ret) { if (net_debug) printk(KERN_DEBUG "cs89x0: request_irq(%d) failed\n", dev->irq); goto bad_out; } } #if ALLOW_DMA if (lp->use_dma) { if (lp->isa_config & ANY_ISA_DMA) { unsigned long flags; lp->dma_buff = (unsigned char *)__get_dma_pages(GFP_KERNEL, get_order(lp->dmasize * 1024)); if (!lp->dma_buff) { printk(KERN_ERR "%s: cannot get %dK memory for DMA\n", dev->name, lp->dmasize); goto release_irq; } if (net_debug > 1) { printk( "%s: dma %lx %lx\n", dev->name, (unsigned long)lp->dma_buff, (unsigned long)isa_virt_to_bus(lp->dma_buff)); } if ((unsigned long) lp->dma_buff >= MAX_DMA_ADDRESS || !dma_page_eq(lp->dma_buff, lp->dma_buff+lp->dmasize*1024-1)) { printk(KERN_ERR "%s: not usable as DMA buffer\n", dev->name); goto release_irq; } memset(lp->dma_buff, 0, lp->dmasize * 1024); /* Why? */ if (request_dma(dev->dma, dev->name)) { printk(KERN_ERR "%s: cannot get dma channel %d\n", dev->name, dev->dma); goto release_irq; } write_dma(dev, lp->chip_type, dev->dma); lp->rx_dma_ptr = lp->dma_buff; lp->end_dma_buff = lp->dma_buff + lp->dmasize*1024; spin_lock_irqsave(&lp->lock, flags); disable_dma(dev->dma); clear_dma_ff(dev->dma); set_dma_mode(dev->dma, 0x14); /* auto_init as well */ set_dma_addr(dev->dma, isa_virt_to_bus(lp->dma_buff)); set_dma_count(dev->dma, lp->dmasize*1024); enable_dma(dev->dma); spin_unlock_irqrestore(&lp->lock, flags); } } #endif /* ALLOW_DMA */ /* set the Ethernet address */ for (i=0; i < ETH_ALEN/2; i++) writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); /* while we're testing the interface, leave interrupts disabled */ writereg(dev, PP_BusCTL, MEMORY_ON); /* Set the LineCTL quintuplet based on adapter configuration read from EEPROM */ if ((lp->adapter_cnf & A_CNF_EXTND_10B_2) && (lp->adapter_cnf & A_CNF_LOW_RX_SQUELCH)) lp->linectl = LOW_RX_SQUELCH; else lp->linectl = 0; /* check to make sure that they have the "right" hardware available */ switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { case A_CNF_MEDIA_10B_T: result = lp->adapter_cnf & A_CNF_10B_T; break; case A_CNF_MEDIA_AUI: result = lp->adapter_cnf & A_CNF_AUI; break; case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break; default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2); } #ifdef CONFIG_ARCH_PNX010X result = A_CNF_10B_T; #endif if (!result) { printk(KERN_ERR "%s: EEPROM is configured for unavailable media\n", dev->name); release_irq: #if ALLOW_DMA release_dma_buff(lp); #endif writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) & ~(SERIAL_TX_ON | SERIAL_RX_ON)); free_irq(dev->irq, dev); ret = -EAGAIN; goto bad_out; } /* set the hardware to the configured choice */ switch(lp->adapter_cnf & A_CNF_MEDIA_TYPE) { case A_CNF_MEDIA_10B_T: result = detect_tp(dev); if (result==DETECTED_NONE) { printk(KERN_WARNING "%s: 10Base-T (RJ-45) has no cable\n", dev->name); if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ result = DETECTED_RJ45H; /* Yes! I don't care if I see a link pulse */ } break; case A_CNF_MEDIA_AUI: result = detect_aui(dev); if (result==DETECTED_NONE) { printk(KERN_WARNING "%s: 10Base-5 (AUI) has no cable\n", dev->name); if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ result = DETECTED_AUI; /* Yes! I don't care if I see a carrrier */ } break; case A_CNF_MEDIA_10B_2: result = detect_bnc(dev); if (result==DETECTED_NONE) { printk(KERN_WARNING "%s: 10Base-2 (BNC) has no cable\n", dev->name); if (lp->auto_neg_cnf & IMM_BIT) /* check "ignore missing media" bit */ result = DETECTED_BNC; /* Yes! I don't care if I can xmit a packet */ } break; case A_CNF_MEDIA_AUTO: writereg(dev, PP_LineCTL, lp->linectl | AUTO_AUI_10BASET); if (lp->adapter_cnf & A_CNF_10B_T) if ((result = detect_tp(dev)) != DETECTED_NONE) break; if (lp->adapter_cnf & A_CNF_AUI) if ((result = detect_aui(dev)) != DETECTED_NONE) break; if (lp->adapter_cnf & A_CNF_10B_2) if ((result = detect_bnc(dev)) != DETECTED_NONE) break; printk(KERN_ERR "%s: no media detected\n", dev->name); goto release_irq; } switch(result) { case DETECTED_NONE: printk(KERN_ERR "%s: no network cable attached to configured media\n", dev->name); goto release_irq; case DETECTED_RJ45H: printk(KERN_INFO "%s: using half-duplex 10Base-T (RJ-45)\n", dev->name); break; case DETECTED_RJ45F: printk(KERN_INFO "%s: using full-duplex 10Base-T (RJ-45)\n", dev->name); break; case DETECTED_AUI: printk(KERN_INFO "%s: using 10Base-5 (AUI)\n", dev->name); break; case DETECTED_BNC: printk(KERN_INFO "%s: using 10Base-2 (BNC)\n", dev->name); break; } /* Turn on both receive and transmit operations */ writereg(dev, PP_LineCTL, readreg(dev, PP_LineCTL) | SERIAL_RX_ON | SERIAL_TX_ON); /* Receive only error free packets addressed to this card */ lp->rx_mode = 0; writereg(dev, PP_RxCTL, DEF_RX_ACCEPT); lp->curr_rx_cfg = RX_OK_ENBL | RX_CRC_ERROR_ENBL; if (lp->isa_config & STREAM_TRANSFER) lp->curr_rx_cfg |= RX_STREAM_ENBL; #if ALLOW_DMA set_dma_cfg(dev); #endif writereg(dev, PP_RxCFG, lp->curr_rx_cfg); writereg(dev, PP_TxCFG, TX_LOST_CRS_ENBL | TX_SQE_ERROR_ENBL | TX_OK_ENBL | TX_LATE_COL_ENBL | TX_JBR_ENBL | TX_ANY_COL_ENBL | TX_16_COL_ENBL); writereg(dev, PP_BufCFG, READY_FOR_TX_ENBL | RX_MISS_COUNT_OVRFLOW_ENBL | #if ALLOW_DMA dma_bufcfg(dev) | #endif TX_COL_COUNT_OVRFLOW_ENBL | TX_UNDERRUN_ENBL); /* now that we've got our act together, enable everything */ writereg(dev, PP_BusCTL, ENABLE_IRQ | (dev->mem_start?MEMORY_ON : 0) /* turn memory on */ #if ALLOW_DMA | dma_busctl(dev) #endif ); netif_start_queue(dev); if (net_debug > 1) printk("cs89x0: net_open() succeeded\n"); return 0; bad_out: return ret; } static void net_timeout(struct net_device *dev) { /* If we get here, some higher level has decided we are broken. There should really be a "kick me" function call instead. */ if (net_debug > 0) printk("%s: transmit timed out, %s?\n", dev->name, tx_done(dev) ? "IRQ conflict ?" : "network cable problem"); /* Try to restart the adaptor. */ netif_wake_queue(dev); } static int net_send_packet(struct sk_buff *skb, struct net_device *dev) { struct net_local *lp = netdev_priv(dev); if (net_debug > 3) { printk("%s: sent %d byte packet of type %x\n", dev->name, skb->len, (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); } /* keep the upload from being interrupted, since we ask the chip to start transmitting before the whole packet has been completely uploaded. */ spin_lock_irq(&lp->lock); netif_stop_queue(dev); /* initiate a transmit sequence */ writeword(dev->base_addr, TX_CMD_PORT, lp->send_cmd); writeword(dev->base_addr, TX_LEN_PORT, skb->len); /* Test to see if the chip has allocated memory for the packet */ if ((readreg(dev, PP_BusST) & READY_FOR_TX_NOW) == 0) { /* * Gasp! It hasn't. But that shouldn't happen since * we're waiting for TxOk, so return 1 and requeue this packet. */ spin_unlock_irq(&lp->lock); if (net_debug) printk("cs89x0: Tx buffer not free!\n"); return 1; } /* Write the contents of the packet */ writewords(dev->base_addr, TX_FRAME_PORT,skb->data,(skb->len+1) >>1); spin_unlock_irq(&lp->lock); lp->stats.tx_bytes += skb->len; dev->trans_start = jiffies; dev_kfree_skb (skb); /* * We DO NOT call netif_wake_queue() here. * We also DO NOT call netif_start_queue(). * * Either of these would cause another bottom half run through * net_send_packet() before this packet has fully gone out. That causes * us to hit the "Gasp!" above and the send is rescheduled. it runs like * a dog. We just return and wait for the Tx completion interrupt handler * to restart the netdevice layer */ return 0; } /* The typical workload of the driver: Handle the network interface interrupts. */ static irqreturn_t net_interrupt(int irq, void *dev_id) { struct net_device *dev = dev_id; struct net_local *lp; int ioaddr, status; int handled = 0; ioaddr = dev->base_addr; lp = netdev_priv(dev); /* we MUST read all the events out of the ISQ, otherwise we'll never get interrupted again. As a consequence, we can't have any limit on the number of times we loop in the interrupt handler. The hardware guarantees that eventually we'll run out of events. Of course, if you're on a slow machine, and packets are arriving faster than you can read them off, you're screwed. Hasta la vista, baby! */ while ((status = readword(dev->base_addr, ISQ_PORT))) { if (net_debug > 4)printk("%s: event=%04x\n", dev->name, status); handled = 1; switch(status & ISQ_EVENT_MASK) { case ISQ_RECEIVER_EVENT: /* Got a packet(s). */ net_rx(dev); break; case ISQ_TRANSMITTER_EVENT: lp->stats.tx_packets++; netif_wake_queue(dev); /* Inform upper layers. */ if ((status & ( TX_OK | TX_LOST_CRS | TX_SQE_ERROR | TX_LATE_COL | TX_16_COL)) != TX_OK) { if ((status & TX_OK) == 0) lp->stats.tx_errors++; if (status & TX_LOST_CRS) lp->stats.tx_carrier_errors++; if (status & TX_SQE_ERROR) lp->stats.tx_heartbeat_errors++; if (status & TX_LATE_COL) lp->stats.tx_window_errors++; if (status & TX_16_COL) lp->stats.tx_aborted_errors++; } break; case ISQ_BUFFER_EVENT: if (status & READY_FOR_TX) { /* we tried to transmit a packet earlier, but inexplicably ran out of buffers. That shouldn't happen since we only ever load one packet. Shrug. Do the right thing anyway. */ netif_wake_queue(dev); /* Inform upper layers. */ } if (status & TX_UNDERRUN) { if (net_debug > 0) printk("%s: transmit underrun\n", dev->name); lp->send_underrun++; if (lp->send_underrun == 3) lp->send_cmd = TX_AFTER_381; else if (lp->send_underrun == 6) lp->send_cmd = TX_AFTER_ALL; /* transmit cycle is done, although frame wasn't transmitted - this avoids having to wait for the upper layers to timeout on us, in the event of a tx underrun */ netif_wake_queue(dev); /* Inform upper layers. */ } #if ALLOW_DMA if (lp->use_dma && (status & RX_DMA)) { int count = readreg(dev, PP_DmaFrameCnt); while(count) { if (net_debug > 5) printk("%s: receiving %d DMA frames\n", dev->name, count); if (net_debug > 2 && count >1) printk("%s: receiving %d DMA frames\n", dev->name, count); dma_rx(dev); if (--count == 0) count = readreg(dev, PP_DmaFrameCnt); if (net_debug > 2 && count > 0) printk("%s: continuing with %d DMA frames\n", dev->name, count); } } #endif break; case ISQ_RX_MISS_EVENT: lp->stats.rx_missed_errors += (status >>6); break; case ISQ_TX_COL_EVENT: lp->stats.collisions += (status >>6); break; } } return IRQ_RETVAL(handled); } static void count_rx_errors(int status, struct net_local *lp) { lp->stats.rx_errors++; if (status & RX_RUNT) lp->stats.rx_length_errors++; if (status & RX_EXTRA_DATA) lp->stats.rx_length_errors++; if (status & RX_CRC_ERROR) if (!(status & (RX_EXTRA_DATA|RX_RUNT))) /* per str 172 */ lp->stats.rx_crc_errors++; if (status & RX_DRIBBLE) lp->stats.rx_frame_errors++; return; } /* We have a good packet(s), get it/them out of the buffers. */ static void net_rx(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); struct sk_buff *skb; int status, length; int ioaddr = dev->base_addr; status = readword(ioaddr, RX_FRAME_PORT); length = readword(ioaddr, RX_FRAME_PORT); if ((status & RX_OK) == 0) { count_rx_errors(status, lp); return; } /* Malloc up new buffer. */ skb = dev_alloc_skb(length + 2); if (skb == NULL) { #if 0 /* Again, this seems a cruel thing to do */ printk(KERN_WARNING "%s: Memory squeeze, dropping packet.\n", dev->name); #endif lp->stats.rx_dropped++; return; } skb_reserve(skb, 2); /* longword align L3 header */ readwords(ioaddr, RX_FRAME_PORT, skb_put(skb, length), length >> 1); if (length & 1) skb->data[length-1] = readword(ioaddr, RX_FRAME_PORT); if (net_debug > 3) { printk( "%s: received %d byte packet of type %x\n", dev->name, length, (skb->data[ETH_ALEN+ETH_ALEN] << 8) | skb->data[ETH_ALEN+ETH_ALEN+1]); } skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); dev->last_rx = jiffies; lp->stats.rx_packets++; lp->stats.rx_bytes += length; } #if ALLOW_DMA static void release_dma_buff(struct net_local *lp) { if (lp->dma_buff) { free_pages((unsigned long)(lp->dma_buff), get_order(lp->dmasize * 1024)); lp->dma_buff = NULL; } } #endif /* The inverse routine to net_open(). */ static int net_close(struct net_device *dev) { #if ALLOW_DMA struct net_local *lp = netdev_priv(dev); #endif netif_stop_queue(dev); writereg(dev, PP_RxCFG, 0); writereg(dev, PP_TxCFG, 0); writereg(dev, PP_BufCFG, 0); writereg(dev, PP_BusCTL, 0); free_irq(dev->irq, dev); #if ALLOW_DMA if (lp->use_dma && lp->dma) { free_dma(dev->dma); release_dma_buff(lp); } #endif /* Update the statistics here. */ return 0; } /* Get the current statistics. This may be called with the card open or closed. */ static struct net_device_stats * net_get_stats(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); unsigned long flags; spin_lock_irqsave(&lp->lock, flags); /* Update the statistics from the device registers. */ lp->stats.rx_missed_errors += (readreg(dev, PP_RxMiss) >> 6); lp->stats.collisions += (readreg(dev, PP_TxCol) >> 6); spin_unlock_irqrestore(&lp->lock, flags); return &lp->stats; } static void set_multicast_list(struct net_device *dev) { struct net_local *lp = netdev_priv(dev); unsigned long flags; spin_lock_irqsave(&lp->lock, flags); if(dev->flags&IFF_PROMISC) { lp->rx_mode = RX_ALL_ACCEPT; } else if((dev->flags&IFF_ALLMULTI)||dev->mc_list) { /* The multicast-accept list is initialized to accept-all, and we rely on higher-level filtering for now. */ lp->rx_mode = RX_MULTCAST_ACCEPT; } else lp->rx_mode = 0; writereg(dev, PP_RxCTL, DEF_RX_ACCEPT | lp->rx_mode); /* in promiscuous mode, we accept errored packets, so we have to enable interrupts on them also */ writereg(dev, PP_RxCFG, lp->curr_rx_cfg | (lp->rx_mode == RX_ALL_ACCEPT? (RX_CRC_ERROR_ENBL|RX_RUNT_ENBL|RX_EXTRA_DATA_ENBL) : 0)); spin_unlock_irqrestore(&lp->lock, flags); } static int set_mac_address(struct net_device *dev, void *p) { int i; struct sockaddr *addr = p; if (netif_running(dev)) return -EBUSY; memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); if (net_debug) { printk("%s: Setting MAC address to ", dev->name); for (i = 0; i < dev->addr_len; i++) printk(" %2.2x", dev->dev_addr[i]); printk(".\n"); } /* set the Ethernet address */ for (i=0; i < ETH_ALEN/2; i++) writereg(dev, PP_IA+i*2, dev->dev_addr[i*2] | (dev->dev_addr[i*2+1] << 8)); return 0; } #ifdef MODULE static struct net_device *dev_cs89x0; /* * Support the 'debug' module parm even if we're compiled for non-debug to * avoid breaking someone's startup scripts */ static int io; static int irq; static int debug; static char media[8]; static int duplex=-1; static int use_dma; /* These generate unused var warnings if ALLOW_DMA = 0 */ static int dma; static int dmasize=16; /* or 64 */ module_param(io, int, 0); module_param(irq, int, 0); module_param(debug, int, 0); module_param_string(media, media, sizeof(media), 0); module_param(duplex, int, 0); module_param(dma , int, 0); module_param(dmasize , int, 0); module_param(use_dma , int, 0); MODULE_PARM_DESC(io, "cs89x0 I/O base address"); MODULE_PARM_DESC(irq, "cs89x0 IRQ number"); #if DEBUGGING MODULE_PARM_DESC(debug, "cs89x0 debug level (0-6)"); #else MODULE_PARM_DESC(debug, "(ignored)"); #endif MODULE_PARM_DESC(media, "Set cs89x0 adapter(s) media type(s) (rj45,bnc,aui)"); /* No other value than -1 for duplex seems to be currently interpreted */ MODULE_PARM_DESC(duplex, "(ignored)"); #if ALLOW_DMA MODULE_PARM_DESC(dma , "cs89x0 ISA DMA channel; ignored if use_dma=0"); MODULE_PARM_DESC(dmasize , "cs89x0 DMA size in kB (16,64); ignored if use_dma=0"); MODULE_PARM_DESC(use_dma , "cs89x0 using DMA (0-1)"); #else MODULE_PARM_DESC(dma , "(ignored)"); MODULE_PARM_DESC(dmasize , "(ignored)"); MODULE_PARM_DESC(use_dma , "(ignored)"); #endif MODULE_AUTHOR("Mike Cruse, Russwll Nelson <nelson@crynwr.com>, Andrew Morton <andrewm@uow.edu.au>"); MODULE_LICENSE("GPL"); /* * media=t - specify media type or media=2 or media=aui or medai=auto * duplex=0 - specify forced half/full/autonegotiate duplex * debug=# - debug level * Default Chip Configuration: * DMA Burst = enabled * IOCHRDY Enabled = enabled * UseSA = enabled * CS8900 defaults to half-duplex if not specified on command-line * CS8920 defaults to autoneg if not specified on command-line * Use reset defaults for other config parameters * Assumptions: * media type specified is supported (circuitry is present) * if memory address is > 1MB, then required mem decode hw is present * if 10B-2, then agent other than driver will enable DC/DC converter (hw or software util) */ int __init init_module(void) { struct net_device *dev = alloc_etherdev(sizeof(struct net_local)); struct net_local *lp; int ret = 0; #if DEBUGGING net_debug = debug; #else debug = 0; #endif if (!dev) return -ENOMEM; dev->irq = irq; dev->base_addr = io; lp = netdev_priv(dev); #if ALLOW_DMA if (use_dma) { lp->use_dma = use_dma; lp->dma = dma; lp->dmasize = dmasize; } #endif spin_lock_init(&lp->lock); /* boy, they'd better get these right */ if (!strcmp(media, "rj45")) lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; else if (!strcmp(media, "aui")) lp->adapter_cnf = A_CNF_MEDIA_AUI | A_CNF_AUI; else if (!strcmp(media, "bnc")) lp->adapter_cnf = A_CNF_MEDIA_10B_2 | A_CNF_10B_2; else lp->adapter_cnf = A_CNF_MEDIA_10B_T | A_CNF_10B_T; if (duplex==-1) lp->auto_neg_cnf = AUTO_NEG_ENABLE; if (io == 0) { printk(KERN_ERR "cs89x0.c: Module autoprobing not allowed.\n"); printk(KERN_ERR "cs89x0.c: Append io=0xNNN\n"); ret = -EPERM; goto out; } else if (io <= 0x1ff) { ret = -ENXIO; goto out; } #if ALLOW_DMA if (use_dma && dmasize != 16 && dmasize != 64) { printk(KERN_ERR "cs89x0.c: dma size must be either 16K or 64K, not %dK\n", dmasize); ret = -EPERM; goto out; } #endif ret = cs89x0_probe1(dev, io, 1); if (ret) goto out; dev_cs89x0 = dev; return 0; out: free_netdev(dev); return ret; } void __exit cleanup_module(void) { unregister_netdev(dev_cs89x0); writeword(dev_cs89x0->base_addr, ADD_PORT, PP_ChipID); release_region(dev_cs89x0->base_addr, NETCARD_IO_EXTENT); free_netdev(dev_cs89x0); } #endif /* MODULE */ /* * Local variables: * version-control: t * kept-new-versions: 5 * c-indent-level: 8 * tab-width: 8 * End: * */