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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 Elliott12 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...
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-16 05:08:17 -0400
t">->channels_min; t.max = hw->channels_max; t.openmin = t.openmax = 0; t.integer = 0; return snd_interval_refine(hw_param_interval(params, rule->var), &t); } static int loopback_open(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct loopback *loopback = substream->private_data; struct loopback_pcm *dpcm; struct loopback_cable *cable; int err = 0; int dev = get_cable_index(substream); mutex_lock(&loopback->cable_lock); dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); if (!dpcm) { err = -ENOMEM; goto unlock; } dpcm->loopback = loopback; dpcm->substream = substream; setup_timer(&dpcm->timer, loopback_timer_function, (unsigned long)dpcm); cable = loopback->cables[substream->number][dev]; if (!cable) { cable = kzalloc(sizeof(*cable), GFP_KERNEL); if (!cable) { kfree(dpcm); err = -ENOMEM; goto unlock; } spin_lock_init(&cable->lock); cable->hw = loopback_pcm_hardware; loopback->cables[substream->number][dev] = cable; } dpcm->cable = cable; cable->streams[substream->stream] = dpcm; snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); /* use dynamic rules based on actual runtime->hw values */ /* note that the default rules created in the PCM midlevel code */ /* are cached -> they do not reflect the actual state */ err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_FORMAT, rule_format, &runtime->hw, SNDRV_PCM_HW_PARAM_FORMAT, -1); if (err < 0) goto unlock; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, rule_rate, &runtime->hw, SNDRV_PCM_HW_PARAM_RATE, -1); if (err < 0) goto unlock; err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, rule_channels, &runtime->hw, SNDRV_PCM_HW_PARAM_CHANNELS, -1); if (err < 0) goto unlock; runtime->private_data = dpcm; runtime->private_free = loopback_runtime_free; if (get_notify(dpcm)) runtime->hw = loopback_pcm_hardware; else runtime->hw = cable->hw; unlock: mutex_unlock(&loopback->cable_lock); return err; } static int loopback_close(struct snd_pcm_substream *substream) { struct loopback *loopback = substream->private_data; struct loopback_pcm *dpcm = substream->runtime->private_data; struct loopback_cable *cable; int dev = get_cable_index(substream); loopback_timer_stop(dpcm); mutex_lock(&loopback->cable_lock); cable = loopback->cables[substream->number][dev]; if (cable->streams[!substream->stream]) { /* other stream is still alive */ cable->streams[substream->stream] = NULL; } else { /* free the cable */ loopback->cables[substream->number][dev] = NULL; kfree(cable); } mutex_unlock(&loopback->cable_lock); return 0; } static struct snd_pcm_ops loopback_playback_ops = { .open = loopback_open, .close = loopback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = loopback_hw_params, .hw_free = loopback_hw_free, .prepare = loopback_prepare, .trigger = loopback_trigger, .pointer = loopback_pointer, }; static struct snd_pcm_ops loopback_capture_ops = { .open = loopback_open, .close = loopback_close, .ioctl = snd_pcm_lib_ioctl, .hw_params = loopback_hw_params, .hw_free = loopback_hw_free, .prepare = loopback_prepare, .trigger = loopback_trigger, .pointer = loopback_pointer, }; static int __devinit loopback_pcm_new(struct loopback *loopback, int device, int substreams) { struct snd_pcm *pcm; int err; err = snd_pcm_new(loopback->card, "Loopback PCM", device, substreams, substreams, &pcm); if (err < 0) return err; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &loopback_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &loopback_capture_ops); pcm->private_data = loopback; pcm->info_flags = 0; strcpy(pcm->name, "Loopback PCM"); loopback->pcm[device] = pcm; snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS, snd_dma_continuous_data(GFP_KERNEL), 0, 2 * 1024 * 1024); return 0; } static int loopback_rate_shift_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 80000; uinfo->value.integer.max = 120000; uinfo->value.integer.step = 1; return 0; } static int loopback_rate_shift_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].rate_shift; return 0; } static int loopback_rate_shift_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); unsigned int val; int change = 0; val = ucontrol->value.integer.value[0]; if (val < 80000) val = 80000; if (val > 120000) val = 120000; mutex_lock(&loopback->cable_lock); if (val != loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].rate_shift) { loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].rate_shift = val; change = 1; } mutex_unlock(&loopback->cable_lock); return change; } static int loopback_notify_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].notify; return 0; } static int loopback_notify_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); unsigned int val; int change = 0; val = ucontrol->value.integer.value[0] ? 1 : 0; if (val != loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].notify) { loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].notify = val; change = 1; } return change; } static int loopback_active_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); struct loopback_cable *cable = loopback->cables [kcontrol->id.subdevice][kcontrol->id.device ^ 1]; unsigned int val = 0; if (cable != NULL) val = (cable->running & (1 << SNDRV_PCM_STREAM_PLAYBACK)) ? 1 : 0; ucontrol->value.integer.value[0] = val; return 0; } static int loopback_format_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = SNDRV_PCM_FORMAT_LAST; uinfo->value.integer.step = 1; return 0; } static int loopback_format_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].format; return 0; } static int loopback_rate_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 0; uinfo->value.integer.max = 192000; uinfo->value.integer.step = 1; return 0; } static int loopback_rate_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].rate; return 0; } static int loopback_channels_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) { uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; uinfo->count = 1; uinfo->value.integer.min = 1; uinfo->value.integer.max = 1024; uinfo->value.integer.step = 1; return 0; } static int loopback_channels_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct loopback *loopback = snd_kcontrol_chip(kcontrol); ucontrol->value.integer.value[0] = loopback->setup[kcontrol->id.subdevice] [kcontrol->id.device].channels; return 0; } static struct snd_kcontrol_new loopback_controls[] __devinitdata = { { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Rate Shift 100000", .info = loopback_rate_shift_info, .get = loopback_rate_shift_get, .put = loopback_rate_shift_put, }, { .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Notify", .info = snd_ctl_boolean_mono_info, .get = loopback_notify_get, .put = loopback_notify_put, }, #define ACTIVE_IDX 2 { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Slave Active", .info = snd_ctl_boolean_mono_info, .get = loopback_active_get, }, #define FORMAT_IDX 3 { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Slave Format", .info = loopback_format_info, .get = loopback_format_get }, #define RATE_IDX 4 { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Slave Rate", .info = loopback_rate_info, .get = loopback_rate_get }, #define CHANNELS_IDX 5 { .access = SNDRV_CTL_ELEM_ACCESS_READ, .iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = "PCM Slave Channels", .info = loopback_channels_info, .get = loopback_channels_get } }; static int __devinit loopback_mixer_new(struct loopback *loopback, int notify) { struct snd_card *card = loopback->card; struct snd_pcm *pcm; struct snd_kcontrol *kctl; struct loopback_setup *setup; int err, dev, substr, substr_count, idx; strcpy(card->mixername, "Loopback Mixer"); for (dev = 0; dev < 2; dev++) { pcm = loopback->pcm[dev]; substr_count = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count; for (substr = 0; substr < substr_count; substr++) { setup = &loopback->setup[substr][dev]; setup->notify = notify; setup->rate_shift = NO_PITCH; setup->format = SNDRV_PCM_FORMAT_S16_LE; setup->rate = 48000; setup->channels = 2; for (idx = 0; idx < ARRAY_SIZE(loopback_controls); idx++) { kctl = snd_ctl_new1(&loopback_controls[idx], loopback); if (!kctl) return -ENOMEM; kctl->id.device = dev; kctl->id.subdevice = substr; switch (idx) { case ACTIVE_IDX: setup->active_id = kctl->id; break; case FORMAT_IDX: setup->format_id = kctl->id; break; case RATE_IDX: setup->rate_id = kctl->id; break; case CHANNELS_IDX: setup->channels_id = kctl->id; break; default: break; } err = snd_ctl_add(card, kctl); if (err < 0) return err; } } } return 0; } #ifdef CONFIG_PROC_FS static void print_dpcm_info(struct snd_info_buffer *buffer, struct loopback_pcm *dpcm, const char *id) { snd_iprintf(buffer, " %s\n", id); if (dpcm == NULL) { snd_iprintf(buffer, " inactive\n"); return; } snd_iprintf(buffer, " buffer_size:\t%u\n", dpcm->pcm_buffer_size); snd_iprintf(buffer, " buffer_pos:\t\t%u\n", dpcm->buf_pos); snd_iprintf(buffer, " silent_size:\t%u\n", dpcm->silent_size); snd_iprintf(buffer, " period_size:\t%u\n", dpcm->pcm_period_size); snd_iprintf(buffer, " bytes_per_sec:\t%u\n", dpcm->pcm_bps); snd_iprintf(buffer, " sample_align:\t%u\n", dpcm->pcm_salign); snd_iprintf(buffer, " rate_shift:\t\t%u\n", dpcm->pcm_rate_shift); snd_iprintf(buffer, " update_pending:\t%u\n", dpcm->period_update_pending); snd_iprintf(buffer, " irq_pos:\t\t%u\n", dpcm->irq_pos); snd_iprintf(buffer, " period_frac:\t%u\n", dpcm->period_size_frac); snd_iprintf(buffer, " last_jiffies:\t%lu (%lu)\n", dpcm->last_jiffies, jiffies); snd_iprintf(buffer, " timer_expires:\t%lu\n", dpcm->timer.expires); } static void print_substream_info(struct snd_info_buffer *buffer, struct loopback *loopback, int sub, int num) { struct loopback_cable *cable = loopback->cables[sub][num]; snd_iprintf(buffer, "Cable %i substream %i:\n", num, sub); if (cable == NULL) { snd_iprintf(buffer, " inactive\n"); return; } snd_iprintf(buffer, " valid: %u\n", cable->valid); snd_iprintf(buffer, " running: %u\n", cable->running); snd_iprintf(buffer, " pause: %u\n", cable->pause); print_dpcm_info(buffer, cable->streams[0], "Playback"); print_dpcm_info(buffer, cable->streams[1], "Capture"); } static void print_cable_info(struct snd_info_entry *entry, struct snd_info_buffer *buffer) { struct loopback *loopback = entry->private_data; int sub, num; mutex_lock(&loopback->cable_lock); num = entry->name[strlen(entry->name)-1]; num = num == '0' ? 0 : 1; for (sub = 0; sub < MAX_PCM_SUBSTREAMS; sub++) print_substream_info(buffer, loopback, sub, num); mutex_unlock(&loopback->cable_lock); } static int __devinit loopback_proc_new(struct loopback *loopback, int cidx) { char name[32]; struct snd_info_entry *entry; int err; snprintf(name, sizeof(name), "cable#%d", cidx); err = snd_card_proc_new(loopback->card, name, &entry); if (err < 0) return err; snd_info_set_text_ops(entry, loopback, print_cable_info); return 0; } #else /* !CONFIG_PROC_FS */ #define loopback_proc_new(loopback, cidx) do { } while (0) #endif static int __devinit loopback_probe(struct platform_device *devptr) { struct snd_card *card; struct loopback *loopback; int dev = devptr->id; int err; err = snd_card_create(index[dev], id[dev], THIS_MODULE, sizeof(struct loopback), &card); if (err < 0) return err; loopback = card->private_data; if (pcm_substreams[dev] < 1) pcm_substreams[dev] = 1; if (pcm_substreams[dev] > MAX_PCM_SUBSTREAMS) pcm_substreams[dev] = MAX_PCM_SUBSTREAMS; loopback->card = card; mutex_init(&loopback->cable_lock); err = loopback_pcm_new(loopback, 0, pcm_substreams[dev]); if (err < 0) goto __nodev; err = loopback_pcm_new(loopback, 1, pcm_substreams[dev]); if (err < 0) goto __nodev; err = loopback_mixer_new(loopback, pcm_notify[dev] ? 1 : 0); if (err < 0) goto __nodev; loopback_proc_new(loopback, 0); loopback_proc_new(loopback, 1); strcpy(card->driver, "Loopback"); strcpy(card->shortname, "Loopback"); sprintf(card->longname, "Loopback %i", dev + 1); err = snd_card_register(card); if (!err) { platform_set_drvdata(devptr, card); return 0; } __nodev: snd_card_free(card); return err; } static int __devexit loopback_remove(struct platform_device *devptr) { snd_card_free(platform_get_drvdata(devptr)); platform_set_drvdata(devptr, NULL); return 0; } #ifdef CONFIG_PM static int loopback_suspend(struct platform_device *pdev, pm_message_t state) { struct snd_card *card = platform_get_drvdata(pdev); struct loopback *loopback = card->private_data; snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); snd_pcm_suspend_all(loopback->pcm[0]); snd_pcm_suspend_all(loopback->pcm[1]); return 0; } static int loopback_resume(struct platform_device *pdev) { struct snd_card *card = platform_get_drvdata(pdev); snd_power_change_state(card, SNDRV_CTL_POWER_D0); return 0; } #endif #define SND_LOOPBACK_DRIVER "snd_aloop" static struct platform_driver loopback_driver = { .probe = loopback_probe, .remove = __devexit_p(loopback_remove), #ifdef CONFIG_PM .suspend = loopback_suspend, .resume = loopback_resume, #endif .driver = { .name = SND_LOOPBACK_DRIVER }, }; static void loopback_unregister_all(void) { int i; for (i = 0; i < ARRAY_SIZE(devices); ++i) platform_device_unregister(devices[i]); platform_driver_unregister(&loopback_driver); } static int __init alsa_card_loopback_init(void) { int i, err, cards; err = platform_driver_register(&loopback_driver); if (err < 0) return err; cards = 0; for (i = 0; i < SNDRV_CARDS; i++) { struct platform_device *device; if (!enable[i]) continue; device = platform_device_register_simple(SND_LOOPBACK_DRIVER, i, NULL, 0); if (IS_ERR(device)) continue; if (!platform_get_drvdata(device)) { platform_device_unregister(device); continue; } devices[i] = device; cards++; } if (!cards) { #ifdef MODULE printk(KERN_ERR "aloop: No loopback enabled\n"); #endif loopback_unregister_all(); return -ENODEV; } return 0; } static void __exit alsa_card_loopback_exit(void) { loopback_unregister_all(); } module_init(alsa_card_loopback_init) module_exit(alsa_card_loopback_exit)
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-16 05:08:17 -0400