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/linux/drivers/input/joystick/iforce/
H A Diforce-ff.c239 if (old->u.periodic.envelope.attack_length != effect->u.periodic.envelope.attack_length in need_envelope_modifier()
240 || old->u.periodic.envelope.attack_level != effect->u.periodic.envelope.attack_level in need_envelope_modifier()
241 || old->u.periodic.envelope.fade_length != effect->u.periodic.envelope.fade_length in need_envelope_modifier()
242 || old->u.periodic.envelope.fade_level != effect->u.periodic.envelope.fade_level) in need_envelope_modifier()
255 * Analyse the changes in an effect, and tell if we need to send a periodic
266 return (old->u.periodic.period != new->u.periodic.period in need_period_modifier()
267 || old->u.periodic.magnitude != new->u.periodic.magnitude in need_period_modifier()
268 || old->u.periodic.offset != new->u.periodic.offset in need_period_modifier()
269 || old->u.periodic.phase != new->u.periodic.phase); in need_period_modifier()
335 * Upload a periodic effect to the device
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/linux/drivers/input/
H A Dff-core.c44 e1->u.periodic.waveform == e2->u.periodic.waveform); in check_effects_compatible()
67 effect->u.periodic.waveform = FF_SINE; in compat_effect()
68 effect->u.periodic.period = 50; in compat_effect()
69 effect->u.periodic.magnitude = magnitude; in compat_effect()
70 effect->u.periodic.offset = 0; in compat_effect()
71 effect->u.periodic.phase = 0; in compat_effect()
72 effect->u.periodic.envelope.attack_length = 0; in compat_effect()
73 effect->u.periodic.envelope.attack_level = 0; in compat_effect()
74 effect->u.periodic.envelope.fade_length = 0; in compat_effect()
75 effect->u.periodic.envelope.fade_level = 0; in compat_effect()
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/linux/Documentation/hwmon/
H A Dsht3x.rst47 The sht3x sensor supports a single shot mode as well as 5 periodic measure
53 2000 0.5 Hz periodic measurement
54 1000 1 Hz periodic measurement
55 500 2 Hz periodic measurement
56 250 4 Hz periodic measurement
57 100 10 Hz periodic measurement
60 In the periodic measure mode, the sensor automatically triggers a measurement
87 configured limits. Alarm only works in periodic measure mode
89 configured limits. Alarm only works in periodic measure mode
96 for periodic measurement. If the interval is not supported
/linux/drivers/usb/host/
H A Docteon-hcd.h117 * @ptxfemplvl: Periodic TxFIFO Empty Level (PTxFEmpLvl)
119 * Indicates when the Periodic TxFIFO Empty Interrupt bit in the
122 * * 1'b0: GINTSTS.PTxFEmp interrupt indicates that the Periodic
124 * * 1'b1: GINTSTS.PTxFEmp interrupt indicates that the Periodic
126 * @nptxfemplvl: Non-Periodic TxFIFO Empty Level (NPTxFEmpLvl)
128 * Indicates when the Non-Periodic TxFIFO Empty Interrupt bit in
132 * Periodic TxFIFO is half empty
134 * Periodic TxFIFO is completely empty
251 * @ptxfempmsk: Periodic TxFIFO Empty Mask (PTxFEmpMsk)
255 * @incomplpmsk: Incomplete Periodic Transfer Mask (incomplPMsk)
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H A Dehci-mem.c13 * - async and periodic schedules, shared by HC and HCD ... these
126 if (ehci->periodic) in ehci_mem_cleanup()
129 ehci->periodic, ehci->periodic_dma); in ehci_mem_cleanup()
130 ehci->periodic = NULL; in ehci_mem_cleanup()
132 /* shadow periodic table */ in ehci_mem_cleanup()
186 /* Hardware periodic table */ in ehci_mem_init()
187 ehci->periodic = (__le32 *) in ehci_mem_init()
191 if (ehci->periodic == NULL) { in ehci_mem_init()
208 ehci->periodic[i] = cpu_to_hc32(ehci, in ehci_mem_init()
212 ehci->periodic[i] = EHCI_LIST_END(ehci); in ehci_mem_init()
H A Dehci-sysfs.c104 * lock, so that our checking does not race with possible periodic in uframe_periodic_max_store()
110 * for request to decrease max periodic bandwidth, we have to check in uframe_periodic_max_store()
123 "periodic bandwidth is already allocated " in uframe_periodic_max_store()
132 ehci_info(ehci, "setting max periodic bandwidth to %u%% " in uframe_periodic_max_store()
137 ehci_warn(ehci, "max periodic bandwidth set is non-standard\n"); in uframe_periodic_max_store()
/linux/tools/testing/selftests/timers/
H A Drtcpie.c3 * Real Time Clock Periodic Interrupt test program
61 /* Read periodic IRQ rate */ in main()
64 /* not all RTCs support periodic IRQs */ in main()
66 fprintf(stderr, "\nNo periodic IRQ support\n"); in main()
82 /* not all RTCs can change their periodic IRQ rate */ in main()
85 "\n...Periodic IRQ rate is fixed\n"); in main()
95 /* Enable periodic interrupts */ in main()
125 /* Disable periodic interrupts */ in main()
/linux/Documentation/timers/
H A Dhighres.rst74 interrupt(s). The next event is currently defined to be periodic, with its
100 System-level global event devices are used for the Linux periodic tick. Per-CPU
107 - system global periodic tick (jiffies update)
110 - cpu local next event interrupt (non periodic mode)
151 initialized, the system works in the usual low resolution periodic mode. The
186 Once a system has switched to high resolution mode, the periodic tick is
187 switched off. This disables the per system global periodic clock event device -
190 The periodic tick functionality is provided by an per-cpu hrtimer. The callback
193 based periodic tick is designed to be extended with dynamic tick functionality.
195 timer and periodic events (jiffies tick, profiling, process accounting) on UP
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/linux/drivers/usb/fotg210/
H A Dfotg210-hcd.h34 * fotg210_hcd: async, unlink, periodic (and shadow), ...
63 FOTG210_HRTIMER_POLL_PSS, /* Poll for periodic schedule off */
69 FOTG210_HRTIMER_DISABLE_PERIODIC, /* Wait to disable periodic sched */
113 /* periodic schedule support */
116 __hc32 *periodic; /* hw periodic table */ member
121 union fotg210_shadow *pshadow; /* mirror hw periodic table */
126 unsigned next_frame; /* scan periodic, start here */
129 unsigned periodic_count; /* periodic activity count */
130 /* max periodic time per uframe */
239 #define CMD_PSE (1<<4) /* periodic schedule enable */
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/linux/Documentation/ABI/testing/
H A Drtc-cdev25 * RTC_PIE_ON, RTC_PIE_OFF: Enable or disable the periodic
26 interrupt for RTCs that support periodic interrupts.
32 periodic interrupts for RTCs that support periodic interrupts.
33 Requires a separate RTC_PIE_ON call to enable the periodic
H A Dsysfs-ptp47 This file contains the number of periodic or one shot
61 This file contains the number of programmable periodic
128 This write-only file enables or disables periodic
129 outputs. To enable a periodic output, write five
132 period nanoseconds. To disable a periodic output, set
/linux/drivers/hid/
H A Dhid-holtekff.c44 * 2: periodic rumble, short intervals
46 * 4: periodic rumble, long intervals
47 * 5: weak periodic rumble, long intervals
48 * 6: weak periodic rumble, short intervals
49 * 7: periodic rumble, short intervals
50 * 8: strong periodic rumble, short intervals
53 * b: very strong periodic rumble, very short intervals
/linux/Documentation/usb/
H A Dehci.rst87 Also, some shortcuts have been taken with the scheduling periodic
89 limits on the number of periodic transactions that can be scheduled,
128 "periodic"
129 dumps the periodic schedule, used for interrupt
140 can't, such as "high bandwidth" periodic (interrupt or ISO) transfers.
142 periodic transfers) use different encodings when operating at high speed.
166 hardware and device driver software allow it. Periodic transfer modes
224 Interrupt and ISO transfer performance issues. Those periodic
229 More than standard 80% periodic bandwidth allocation is possible
/linux/kernel/time/
H A Dtick-broadcast.c75 * Start the device in periodic mode
200 * notification the systems stays stuck in periodic mode in tick_install_broadcast_device()
256 * Devices might be registered with both periodic and oneshot in tick_device_uses_broadcast()
282 * periodic broadcast on state. in tick_device_uses_broadcast()
303 * If the system is in periodic mode, check in tick_device_uses_broadcast()
312 * in shutdown state. The periodic interrupt in tick_device_uses_broadcast()
388 * Periodic broadcast:
398 * Event handler for periodic broadcast ticks
475 * - the broadcast device is in periodic mode to in tick_broadcast_control()
513 * Set the periodic handler depending on broadcast on/off
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/linux/drivers/net/wireless/ralink/rt2x00/
H A Drt2x00lib.h205 * rt2x00link_start_tuner - Start periodic link tuner work
208 * This start the link tuner periodic work, this work will
215 * rt2x00link_stop_tuner - Stop periodic link tuner work
224 * rt2x00link_reset_tuner - Reset periodic link tuner work
234 * Resetting the link tuner will also cause the periodic work counter
245 * rt2x00link_start_watchdog - Start periodic watchdog monitoring
248 * This start the watchdog periodic work, this work will
255 * rt2x00link_stop_watchdog - Stop periodic watchdog monitoring
268 * parameters. This will not start the periodic work itself.
/linux/drivers/clocksource/
H A Dsh_tmu.c45 unsigned long periodic; member
210 int periodic) in sh_tmu_set_next() argument
221 /* reload delta value in case of periodic timer */ in sh_tmu_set_next()
222 if (periodic) in sh_tmu_set_next()
339 static void sh_tmu_clock_event_start(struct sh_tmu_channel *ch, int periodic) in sh_tmu_clock_event_start() argument
343 if (periodic) { in sh_tmu_clock_event_start()
344 ch->periodic = (ch->tmu->rate + HZ/2) / HZ; in sh_tmu_clock_event_start()
345 sh_tmu_set_next(ch, ch->periodic, 1); in sh_tmu_clock_event_start()
359 int periodic) in sh_tmu_clock_event_set_state() argument
368 ch->index, periodic ? "periodic" : "oneshot"); in sh_tmu_clock_event_set_state()
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/linux/drivers/net/wireless/ti/wl18xx/
H A Dscan.h83 /* send SCAN_REPORT_EVENT in periodic scans after each cycle
85 * non periodic scans
89 /* Should periodic scan stop after a report event was created.
90 * Must be 0 for non periodic scans.
/linux/include/net/
H A Dbond_3ad.h42 /* periodic machine states(43.4.12 in the 802.3ad standard) */
45 AD_NO_PERIODIC, /* periodic machine */
46 AD_FAST_PERIODIC, /* periodic machine */
47 AD_SLOW_PERIODIC, /* periodic machine */
48 AD_PERIODIC_TX /* periodic machine */
229 periodic_states_t sm_periodic_state; /* state machine periodic state */
230 u16 sm_periodic_timer_counter; /* state machine periodic timer counter */
/linux/include/uapi/linux/
H A Dhpet.h15 #define HPET_INFO_PERIODIC 0x0010 /* periodic-capable comparator */
20 #define HPET_EPI _IO('h', 0x04) /* enable periodic */
21 #define HPET_DPI _IO('h', 0x05) /* disable periodic */
/linux/arch/arm/mach-pxa/
H A Dregs-rtc.h15 #define PIAR __REG(0x40900038) /* Periodic Interrupt Alarm Register */
17 #define RTSR_PICE (1 << 15) /* Periodic interrupt count enable */
18 #define RTSR_PIALE (1 << 14) /* Periodic interrupt Alarm enable */
/linux/Documentation/driver-api/
H A Dptp.rst99 - 3 Periodic signals (optional interrupt)
107 - GPIO outputs can produce periodic signals
119 - Programmable output periodic signals
131 periodic signals.
134 periodic signals.
/linux/drivers/hid/usbhid/
H A Dhid-pidff.c334 * Send periodic effect report to the device
342 effect->u.periodic.magnitude); in pidff_set_periodic_report()
344 effect->u.periodic.offset); in pidff_set_periodic_report()
345 pidff_set(&pidff->set_periodic[PID_PHASE], effect->u.periodic.phase); in pidff_set_periodic_report()
346 pidff->set_periodic[PID_PERIOD].value[0] = effect->u.periodic.period; in pidff_set_periodic_report()
354 * Test if periodic effect parameters have changed
359 return effect->u.periodic.magnitude != old->u.periodic.magnitude || in pidff_needs_set_periodic()
360 effect->u.periodic.offset != old->u.periodic.offset || in pidff_needs_set_periodic()
361 effect->u.periodic.phase != old->u.periodic.phase || in pidff_needs_set_periodic()
362 effect->u.periodic.period != old->u.periodic.period; in pidff_needs_set_periodic()
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/linux/arch/arm/mach-at91/
H A DKconfig163 bool "Periodic Interval Timer (PIT) support"
168 Select this to get a clocksource based on the Atmel Periodic Interval
184 bool "64-bit Periodic Interval Timer (PIT64B) support"
190 Periodic Interval Timer.
/linux/drivers/usb/dwc2/
H A Dhcd_intr.c105 * Handles the start-of-frame interrupt in host mode. Non-periodic
107 * (micro)frame. Periodic transactions may be queued to the controller
127 /* Determine whether any periodic QHs should be executed */ in dwc2_sof_intr()
209 * This interrupt occurs when the non-periodic Tx FIFO is half-empty. More
211 * may be written to the non-periodic request queue for IN transfers. This
216 dev_vdbg(hsotg->dev, "--Non-Periodic TxFIFO Empty Interrupt--\n"); in dwc2_np_tx_fifo_empty_intr()
221 * This interrupt occurs when the periodic Tx FIFO is half-empty. More data
223 * written to the periodic request queue for IN transfers. This interrupt is
229 dev_vdbg(hsotg->dev, "--Periodic TxFIFO Empty Interrupt--\n"); in dwc2_perio_tx_fifo_empty_intr()
622 * Frees the first QTD in the QH's list if free_qtd is 1. For non-periodic
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H A Dhcd.h46 * @multi_count: Number of additional periodic transactions per
286 * @qh_list_entry: Entry for QH in either the periodic or non-periodic
294 * @unreserve_timer: Timer for releasing periodic reservation.
303 * periodic transfers and is ignored for periodic ones.
309 * be entered in either the non-periodic or periodic schedule.
396 * non-periodic or periodic schedule for execution. When a QTD is chosen for
569 /* Check if QH is non-periodic */

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