| /Linux-v6.1/drivers/iio/imu/inv_icm42600/ |
| D | inv_icm42600_timestamp.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
15 /* allow a jitter of +/- 2% */
19 (((_p) * (100 - INV_ICM42600_TIMESTAMP_JITTER)) / 100)
23 /* Add a new value inside an accumulator and update the estimate value */
29 acc->values[acc->idx++] = val; in inv_update_acc()
30 if (acc->idx >= ARRAY_SIZE(acc->values)) in inv_update_acc()
31 acc->idx = 0; in inv_update_acc()
34 for (i = 0; i < ARRAY_SIZE(acc->values); ++i) { in inv_update_acc()
35 if (acc->values[i] == 0) in inv_update_acc()
37 sum += acc->values[i]; in inv_update_acc()
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|
| /Linux-v6.1/drivers/thermal/ti-soc-thermal/ |
| D | ti-bandgap.c | 1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2011-2012 Texas Instruments Incorporated - http://www.ti.com/
6 * Author: J Keerthy <j-keerthy@ti.com>
7 * Author: Moiz Sonasath <m-sonasath@ti.com>
36 #include "ti-bandgap.h"
47 * ti_bandgap_readl() - simple read helper function
56 return readl(bgp->base + reg); in ti_bandgap_readl()
60 * ti_bandgap_writel() - simple write helper function
69 writel(val, bgp->base + reg); in ti_bandgap_writel()
73 * DOC: macro to update bits.
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| /Linux-v6.1/net/dccp/ccids/lib/ |
| D | loss_interval.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (c) 2005-7 The University of Waikato, Hamilton, New Zealand.
5 * Copyright (c) 2005-7 Ian McDonald <ian.mcdonald@jandi.co.nz>
12 /* Loss Interval weights from [RFC 3448, 5.4], scaled by 10 */
18 return LIH_SIZE - 1 - (ctr % LIH_SIZE); in LIH_INDEX()
24 return lh->counter ? lh->ring[LIH_INDEX(lh->counter - 1)] : NULL; in tfrc_lh_peek()
30 BUG_ON(i >= lh->counter); in tfrc_lh_get_interval()
31 return lh->ring[LIH_INDEX(lh->counter - i - 1)]->li_length; in tfrc_lh_get_interval()
35 * On-demand allocation and de-allocation of entries
39 if (lh->ring[LIH_INDEX(lh->counter)] == NULL) in tfrc_lh_demand_next()
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| /Linux-v6.1/kernel/time/ |
| D | timekeeping.c | 1 // SPDX-License-Identifier: GPL-2.0
28 #include "tick-internal.h"
37 /* Update timekeeper when a tick has passed */
40 /* Update timekeeper on a direct frequency change */
63 * struct tk_fast - NMI safe timekeeper
76 /* Suspend-time cycles value for halted fast timekeeper. */
119 while (tk->tkr_mono.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr_mono.shift)) { in tk_normalize_xtime()
120 tk->tkr_mono.xtime_nsec -= (u64)NSEC_PER_SEC << tk->tkr_mono.shift; in tk_normalize_xtime()
121 tk->xtime_sec++; in tk_normalize_xtime()
123 while (tk->tkr_raw.xtime_nsec >= ((u64)NSEC_PER_SEC << tk->tkr_raw.shift)) { in tk_normalize_xtime()
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| D | ntp.c | 1 // SPDX-License-Identifier: GPL-2.0
49 * phase-lock loop variables
82 /* constant (boot-param configurable) NTP tick adjustment (upscaled) */
91 * The following variables are used when a pulse-per-second (PPS) signal
97 #define PPS_INTMIN 2 /* min freq interval (s) (shift) */
98 #define PPS_INTMAX 8 /* max freq interval (s) (shift) */
107 static struct timespec64 pps_fbase; /* beginning of the last freq interval */
108 static int pps_shift; /* current interval duration (s) (shift) */
109 static int pps_intcnt; /* interval counter */
135 /* the PPS calibration interval may end in pps_reset_freq_interval()
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|
| /Linux-v6.1/Documentation/devicetree/bindings/power/supply/ |
| D | dlg,da9150-fuel-gauge.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/power/supply/dlg,da9150-fuel-gauge.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Dialog Semiconductor DA9150 Fuel-Gauge Power Supply bindings
10 - Sebastian Reichel <sre@kernel.org>
13 - $ref: power-supply.yaml#
17 const: dlg,da9150-fuel-gauge
19 dlg,update-interval:
21 description: Interval time (milliseconds) between battery level checks.
[all …]
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| /Linux-v6.1/Documentation/hwmon/ |
| D | sht3x.rst | 6 * Sensirion SHT3x-DIS
16 - David Frey <david.frey@sensirion.com>
17 - Pascal Sachs <pascal.sachs@sensirion.com>
20 -----------
22 This driver implements support for the Sensirion SHT3x-DIS chip, a humidity
29 Documentation/i2c/instantiating-devices.rst for methods to instantiate the device.
34 non-blocking mode. Blocking mode will guarantee the fastest result but
35 the I2C bus will be busy during that time. By default, non-blocking mode
36 is used. Make sure clock-stretching works properly on your device if you
55 with the configured update interval on the chip. When a temperature or humidity
[all …]
|
| D | lm95245.rst | 22 Author: Alexander Stein <alexander.stein@systec-electronic.com>
25 -----------
27 LM95235 and LM95245 are 11-bit digital temperature sensors with a 2-wire System
34 is given within a range of -127 to +127.875 degrees. Remote temperatures are
35 given within a range of -127 to +255 degrees. Resolution depends on
40 user-space applications, two absolute values are exported, one for each
42 can be set from user-space, and the same delta applies to the remote
45 The lm95245 driver can change its update interval to a fixed set of values.
46 It will round up to the next selectable interval. See the datasheet for exact
|
| D | lm95234.rst | 22 Author: Guenter Roeck <linux@roeck-us.net>
25 -----------
27 LM95233 and LM95234 are 11-bit digital temperature sensors with a 2-wire
32 graphics processors or diode-connected 2N3904s. The chip's TruTherm
37 is provided within a range of -127 to +255 degrees (+127.875 degrees for
45 The lm95234 driver can change its update interval to a fixed set of values.
46 It will round up to the next selectable interval. See the datasheet for exact
|
| /Linux-v6.1/Documentation/mm/damon/ |
| D | design.rst | 1 .. SPDX-License-Identifier: GPL-2.0
42 VMA-based Target Address Range Construction
43 -------------------------------------------
49 Only small parts in the super-huge virtual address space of the processes are
61 heap and the uppermost mmap()-ed region, and the gap between the lowermost
62 mmap()-ed region and the stack in most of the cases. Because these gaps are
64 to make a reasonable trade-off. Below shows this in detail::
68 <uppermost mmap()-ed region>
69 (small mmap()-ed regions and munmap()-ed regions)
70 <lowermost mmap()-ed region>
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| /Linux-v6.1/arch/s390/kernel/ |
| D | vtime.c | 1 // SPDX-License-Identifier: GPL-2.0
52 S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer; in set_vtimer()
77 delta = cycles_new[i] - cycles_old[i]; in update_mt_scaling()
85 /* Update scaling factor */ in update_mt_scaling()
98 delta = new - *tsk_vtime; in update_tsk_timer()
117 p->stimescaled += cputime_to_nsecs(scale_vtime(cputime)); in account_system_index_scaled()
122 * Update process times based on virtual cpu times stored by entry.S
137 clock = S390_lowcore.last_update_clock - clock; in do_account_vtime()
138 timer -= S390_lowcore.last_update_timer; in do_account_vtime()
145 /* Update MT utilization calculation */ in do_account_vtime()
[all …]
|
| /Linux-v6.1/Documentation/admin-guide/mm/damon/ |
| D | usage.rst | 1 .. SPDX-License-Identifier: GPL-2.0
9 - *DAMON user space tool.*
11 system administrators who want a just-working human-friendly interface.
12 Using this, users can use the DAMON’s major features in a human-friendly way.
17 - *sysfs interface.*
28 - *debugfs interface.*
32 - *Kernel Space Programming Interface.*
60 ---------------
63 figure, parents-children relations are represented with indentations, each
96 ----
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|
| /Linux-v6.1/samples/bpf/ |
| D | xdp_redirect_map_multi_user.c | 1 // SPDX-License-Identifier: GPL-2.0
40 { "skb-mode", no_argument, NULL, 'S' },
42 { "load-egress", no_argument, NULL, 'X' },
44 { "interval", required_argument, NULL, 'i' },
54 int i, ret = -1; in update_mac_map()
68 fprintf(stderr, "Failed to update mac address for ifindex %d\n", in update_mac_map()
85 unsigned long interval = 2; in main() local
95 long_options, NULL)) != -1) { in main()
110 interval = strtoul(optarg, NULL, 0); in main()
141 fprintf(stderr, "Failed to sample_init_pre_load: %s\n", strerror(-ret)); in main()
[all …]
|
| D | cpustat_kern.c | 1 // SPDX-License-Identifier: GPL-2.0
29 * timestamp (Idx, Ts), when new event incoming we need to update
33 * interval for the previous state: Duration(Idx) = Ts` - Ts.
38 * +--------------------------+
40 * +--------------------------+
42 * +--------------------------+
44 * +--------------------------+
46 * +--------------------------+
110 if (ctx->cpu_id > MAX_CPU) in bpf_prog1()
113 cpu = ctx->cpu_id; in bpf_prog1()
[all …]
|
| /Linux-v6.1/include/linux/ |
| D | damon.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
18 /* Max priority score for DAMON-based operation schemes */
24 return l + prandom_u32_max(r - l); in damon_rand()
28 * struct damon_addr_range - Represents an address region of [@start, @end).
38 * struct damon_region - Represents a monitoring target region.
45 * @age is initially zero, increased for each aggregation interval, and reset
48 * region are set as region size-weighted average of those of the two regions.
62 * struct damon_target - Represents a monitoring target.
81 * enum damos_action - Represents an action of a Data Access Monitoring-based
107 * struct damos_quota - Controls the aggressiveness of the given scheme.
[all …]
|
| D | timekeeper_internal.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
15 * struct tk_read_base - base structure for timekeeping readout
18 * @cycle_last: @clock cycle value at last update
46 * struct timekeeper - Structure holding internal timekeeping values.
52 * @offs_real: Offset clock monotonic -> clock realtime
53 * @offs_boot: Offset clock monotonic -> clock boottime
54 * @offs_tai: Offset clock monotonic -> clock tai
58 * @next_leap_ktime: CLOCK_MONOTONIC time value of a pending leap-second
61 * @cycle_interval: Number of clock cycles in one NTP interval
63 * interval.
[all …]
|
| /Linux-v6.1/drivers/media/platform/mediatek/vcodec/ |
| D | venc_drv_if.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
16 * enum venc_yuv_fmt - The type of input yuv format
17 * (VPU related: If you change the order, you must also update the VPU codes.)
31 * enum venc_start_opt - encode frame option used in venc_if_encode()
41 * enum venc_set_param_type - The type of set parameter used in
43 * (VPU related: If you change the order, you must also update the VPU codes.)
48 * @VENC_SET_PARAM_GOP_SIZE: set IDR interval
49 * @VENC_SET_PARAM_INTRA_PERIOD: set I frame interval
67 * struct venc_enc_prm - encoder settings for VENC_SET_PARAM_ENC used in
96 * struct venc_frame_info - per-frame information to pass to the firmware.
[all …]
|
| /Linux-v6.1/drivers/hwmon/ |
| D | nzxt-smart2.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Reverse-engineered NZXT RGB & Fan Controller/Smart Device v2 driver.
77 * a 2-byte output report { 0x60, 0x03 }.
90 * The device sends these reports at a fixed interval (update interval) -
92 * FAN_STATUS_REPORT_VOLTAGE per update interval.
112 * Fan duty cycle, in percent. Non-zero even for
117 * Exactly the same values as duty_percent[], non-zero
127 * Voltage, in millivolts. Non-zero even when fan is
132 * Current, in milliamperes. Near-zero when
161 /* To change fan speed on i-th channel, set i-th bit here */
[all …]
|
| D | stts751.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (C) 2016-2017 Istituto Italiano di Tecnologia - RBCS - EDL
17 #include <linux/hwmon-sysfs.h>
32 0x48, 0x49, 0x38, 0x39, /* STTS751-0 */
33 0x4A, 0x4B, 0x3A, 0x3B, /* STTS751-1 */
65 * Possible update intervals are (in mS):
89 u8 interval; member
105 * vice-vers. They are (mostly) taken from lm90 driver. Unit is in mC.
121 switch (priv->interval) { in stts751_adjust_resolution()
136 if (priv->res == res) in stts751_adjust_resolution()
[all …]
|
| /Linux-v6.1/drivers/auxdisplay/ |
| D | line-display.h | 1 /* SPDX-License-Identifier: GPL-2.0-or-later */
15 * struct linedisp - character line display private data structure
18 * @update: function called to update the display
24 * @scroll_rate: scroll interval in jiffies
29 void (*update)(struct linedisp *linedisp); member
40 void (*update)(struct linedisp *linedisp));
|
| /Linux-v6.1/sound/pci/ctxfi/ |
| D | cttimer.c | 1 // SPDX-License-Identifier: GPL-2.0-only
16 MODULE_PARM_DESC(use_system_timer, "Force to use system-timer");
29 /* timer instance -- assigned to each PCM stream */
60 * system-timer-based updates
66 struct snd_pcm_substream *substream = ti->substream; in ct_systimer_callback()
67 struct snd_pcm_runtime *runtime = substream->runtime; in ct_systimer_callback()
68 struct ct_atc_pcm *apcm = ti->apcm; in ct_systimer_callback()
69 unsigned int period_size = runtime->period_size; in ct_systimer_callback()
70 unsigned int buffer_size = runtime->buffer_size; in ct_systimer_callback()
72 unsigned int position, dist, interval; in ct_systimer_callback() local
[all …]
|
| /Linux-v6.1/drivers/leds/ |
| D | leds-bcm6328.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Driver for BCM6328 memory-mapped LEDs, based on leds-syscon.c
59 * struct bcm6328_led - state container for bcm6328 based LEDs
98 * bits [31:0] -> LEDs 8-23
99 * bits [47:32] -> LEDs 0-7
100 * bits [63:48] -> unused
105 return pin + 16; /* LEDs 0-7 (bits 47:32) */ in bcm6328_pin2shift()
107 return pin - 8; /* LEDs 8-23 (bits 31:0) */ in bcm6328_pin2shift()
115 shift = bcm6328_pin2shift(led->pin); in bcm6328_led_mode()
117 mode = led->mem + BCM6328_REG_MODE_HI; in bcm6328_led_mode()
[all …]
|
| /Linux-v6.1/drivers/media/i2c/ |
| D | ov9650.c | 1 // SPDX-License-Identifier: GPL-2.0-only
25 #include <media/media-entity.h>
26 #include <media/v4l2-async.h>
27 #include <media/v4l2-ctrls.h>
28 #include <media/v4l2-device.h>
29 #include <media/v4l2-event.h>
30 #include <media/v4l2-image-sizes.h>
31 #include <media/v4l2-subdev.h>
32 #include <media/v4l2-mediabus.h>
37 MODULE_PARM_DESC(debug, "Debug level (0-2)");
[all …]
|
| /Linux-v6.1/drivers/iio/imu/inv_mpu6050/ |
| D | inv_mpu_ring.c | 1 // SPDX-License-Identifier: GPL-2.0-only
19 * inv_mpu6050_update_period() - Update chip internal period estimation
33 (NSEC_PER_MSEC * (100 - INV_MPU6050_TS_PERIOD_JITTER)) / 100; in inv_mpu6050_update_period()
37 s64 delta, interval; in inv_mpu6050_update_period() local
40 if (st->it_timestamp == 0) { in inv_mpu6050_update_period()
51 delta = div_s64(timestamp - st->it_timestamp, divider); in inv_mpu6050_update_period()
53 /* update chip period and use it timestamp */ in inv_mpu6050_update_period()
54 st->chip_period = (st->chip_period + delta) / 2; in inv_mpu6050_update_period()
65 interval = (nb - 1) * st->chip_period * divider; in inv_mpu6050_update_period()
66 st->data_timestamp = timestamp - interval; in inv_mpu6050_update_period()
[all …]
|
| /Linux-v6.1/fs/ext4/ |
| D | mmp.c | 1 // SPDX-License-Identifier: GPL-2.0
17 csum = ext4_chksum(sbi, sbi->s_csum_seed, (char *)mmp, offset); in ext4_mmp_csum()
27 return mmp->mmp_checksum == ext4_mmp_csum(sb, mmp); in ext4_mmp_csum_verify()
35 mmp->mmp_checksum = ext4_mmp_csum(sb, mmp); in ext4_mmp_csum_set()
39 * Write the MMP block using REQ_SYNC to try to get the block on-disk
44 struct mmp_struct *mmp = (struct mmp_struct *)(bh->b_data); in write_mmp_block()
53 bh->b_end_io = end_buffer_write_sync; in write_mmp_block()
59 return -EIO; in write_mmp_block()
83 ret = -ENOMEM; in read_mmp_block()
93 mmp = (struct mmp_struct *)((*bh)->b_data); in read_mmp_block()
[all …]
|
