| /freebsd/share/man/man4/ |
| H A D | ow_temp.4 | 1 .\"-
2 .\" SPDX-License-Identifier: BSD-2-Clause
31 .Nd Dallas Semiconductor 1-Wire Temperature sensor
37 module supports many of the 1-Wire temperature sensors.
47 .Bl -column "DS18S20" "Econo 1-Wire Digital Thermometer" -compact
48 .It DS1820 Ta 1-Wire Digital Thermometer
49 .It DS18S20 Ta High-Precision 1-Wire Digital Thermometer
50 .It DS18B20 Ta Programmable Resolution 1-Wire Digital Thermometer
51 .It DS1822 Ta Econo 1-Wire Digital Thermometer
52 .It DS1825 Ta Programmable Resolution 1-Wire Digital Thermometer with 4-bit ID
[all …]
|
| H A D | pcm.4 | 2 .\" Copyright (c) 2009-2011 Joel Dahl <joel@FreeBSD.org>
39 .Bd -ragged -offset indent
60 driver are: multichannel audio, per-application
74 .Bl -bullet -compact
118 .Xr snd_uaudio 4 (auto-loaded on device plug)
145 .Bl -tag -width ".Va snd_driver_load" -offse
[all...] |
| H A D | ng_cisco.4 | 1 .\" Copyright (c) 1996-1999 Whistle Communications, Inc.
19 .\" MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
22 .\" SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
49 node type performs encapsulation and de-encapsulation of packets
53 high speed synchronous lines.
115 .Bl -tag -width ".Va downstream"
129 .Bl -tag -width foo
147 .Bd -literal -offset 4n
164 .%T "Requirements for an Internet Standard Point-to-Point Protocol"
|
| /freebsd/sys/contrib/device-tree/Bindings/mtd/ |
| H A D | lpc32xx-mlc.txt | 4 - compatible: "nxp,lpc3220-mlc"
5 - reg: Address and size of the controller
6 - interrupts: The NAND interrupt specification
7 - gpios: GPIO specification for NAND write protect
12 accuracy:)
13 - nxp,tcea_delay: TCEA_DELAY
14 - nxp,busy_delay: BUSY_DELAY
15 - nxp,nand_ta: NAND_TA
16 - nxp,rd_high: RD_HIGH
17 - nxp,rd_low: RD_LOW
[all …]
|
| /freebsd/lib/msun/src/ |
| H A D | s_cbrtf.c | 1 /* s_cbrtf.c -- float version of s_cbrt.c.
24 B1 = 709958130, /* B1 = (127-127.0/3-0.03306235651)*2**23 */
25 B2 = 642849266; /* B2 = (127-127.0/3-24/3-0.03306235651)*2**23 */
34 u_int32_t high; in cbrtf() local
44 return(x); /* cbrt(+-0) is itself */ in cbrtf()
47 GET_FLOAT_WORD(high,t); in cbrtf()
48 SET_FLOAT_WORD(t,sign|((high&0x7fffffff)/3+B2)); in cbrtf()
53 * First step Newton iteration (solving t*t-x/t == 0) to 16 bits. In in cbrtf()
63 * efficiency and accuracy. in cbrtf()
68 /* rounding to 24 bits is perfect in round-to-nearest mode */ in cbrtf()
|
| H A D | e_exp.c | 22 * Here r will be represented as r = hi-lo for better
23 * accuracy.
28 * R(r**2) = r*(exp(r)+1)/(exp(r)-1) = 2 + r*r/6 - r**4/360 + ...
31 * of this polynomial approximation is bounded by 2**-59. In
36 * | 5 | -59
37 * | 2.0+P1*z+...+P5*z - R(z) | <= 2
41 * exp(r) = 1 + -------
42 * R - r
44 * = 1 + r + ----------- (for better accuracy)
45 * 2 - R1(r)
[all …]
|
| H A D | s_sinpi.c | 1 /*-
29 * note that sinpi(-x) = -sinpi(x), so the algorithm considers only |x| and
34 * threshold is |x| < 0x1pN with N = -(P/2+M). P is the precision of the
35 * floating-point type and M = 2 to 4. To achieve high accuracy, pi is
36 * decomposed into high and low parts with the high part containing a
37 * number of trailing zero bits. x is also split into high and low parts.
43 * 3. For 1 <= |x| < 0x1p(P-1), argument reduction is required where
51 * = +-sinpi(r)
53 * If j0 is even, then cos(pi*j0) = 1. If j0 is odd, then cos(pi*j0) = -1.
56 * 4. For |x| >= 0x1p(P-1), |x| is integral and sinpi(x) = copysign(0,x).
[all …]
|
| H A D | s_tanpi.c | 1 /*-
29 * note that tanpi(-x) = -tanpi(x), so the algorithm considers only |x| and
34 * threshold is |x| < 0x1pN with N = -(P/2+M). P is the precision of the
35 * floating-point type and M = 2 to 4. To achieve high accuracy, pi is
36 * decomposed into high and low parts with the high part containing a
37 * number of trailing zero bits. x is also split into high and low parts.
43 * 3. For 1 <= |x| < 0x1p(P-1), argument reduction is required where
49 * tanpi(x) = tan(pi*(j0+r)) = ---------------------------- = tanpi(r)
50 * 1 - tan(pi*j0) * tan(pi*r)
54 * 4. For |x| >= 0x1p(P-1), |x| is integral and tanpi(x) = copysign(0,x).
[all …]
|
| H A D | s_tan.c | 16 * __kernel_tan ... tangent function on [-pi/4,pi/4]
21 * [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
22 * in [-pi/4 , +pi/4], and let n = k mod 4.
26 * ----------------------------------------------------------
28 * 1 C -S -1/T
29 * 2 -S -C T
30 * 3 -C S -1/T
31 * ----------------------------------------------------------
35 * trig(+-INF) is NaN, with signals;
38 * Accuracy:
[all …]
|
| H A D | s_cos.c | 16 * __kernel_sin ... sine function on [-pi/4,pi/4]
17 * __kernel_cos ... cosine function on [-pi/4,pi/4]
22 * [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
23 * in [-pi/4 , +pi/4], and let n = k mod 4.
27 * ----------------------------------------------------------
29 * 1 C -S -1/T
30 * 2 -S -C T
31 * 3 -C S -1/T
32 * ----------------------------------------------------------
36 * trig(+-INF) is NaN, with signals;
[all …]
|
| H A D | s_sin.c | 16 * __kernel_sin ... sine function on [-pi/4,pi/4]
17 * __kernel_cos ... cose function on [-pi/4,pi/4]
22 * [-PI/4, +PI/4]. Reduce the argument x to y1+y2 = x-k*pi/2
23 * in [-pi/4 , +pi/4], and let n = k mod 4.
27 * ----------------------------------------------------------
29 * 1 C -S -1/T
30 * 2 -S -C T
31 * 3 -C S -1/T
32 * ----------------------------------------------------------
36 * trig(+-INF) is NaN, with signals;
[all …]
|
| /freebsd/sys/contrib/device-tree/Bindings/iio/adc/ |
| H A D | ti-adc12138.txt | 4 - compatible: Should be one of
8 - reg: SPI chip select number for the device
9 - interrupts: Should contain interrupt for EOC (end of conversion)
10 - clocks: phandle to conversion clock input
11 - spi-max-frequency: Definision as per
12 Documentation/devicetree/bindings/spi/spi-bus.txt
13 - vref-p-supply: The regulator supply for positive analog voltage reference
16 - vref-n-supply: The regulator supply for negative analog voltage reference
17 (Note that this must not go below GND or exceed vref-p)
19 - ti,acquisition-time: The number of conversion clock periods for the S/H's
[all …]
|
| H A D | richtek,rtq6056.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
19 internal analog-to-digital converter ADC. The programmable calibration,
24 https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
33 "#io-channel-cells":
36 shunt-resistor-micro-ohms:
[all …]
|
| H A D | ti,adc12138.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments ADC12138 and similar self-calibrating ADCs
10 - Akinobu Mita <akinobu.mita@gmail.com>
19 - ti,adc12130
20 - ti,adc12132
21 - ti,adc12138
34 vref-p-supply:
37 vref-n-supply:
[all …]
|
| /freebsd/lib/msun/bsdsrc/ |
| H A D | b_exp.c | 1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
47 * r will be represented as r := z+c for better accuracy.
51 * exp(r) = 1 + r + r*R1/(2-R1),
53 * R1 = x - x^2*(p1+x^2*(p2+x^2*(p3+x^2*(p4+p5*x^2)))).
59 * exp(-INF)= 0;
62 * Accuracy:
68 p1 = 1.6666666666666660e-01, /* 0x3fc55555, 0x55555553 */
69 p2 = -2.7777777777564776e-03, /* 0xbf66c16c, 0x16c0ac3c */
70 p3 = 6.6137564717940088e-05, /* 0x3f11566a, 0xb5c2ba0d */
[all …]
|
| /freebsd/contrib/ntp/html/drivers/ |
| H A D | driver4.html | 1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
4 <meta http-equiv="content-type" content="text/html;charset=iso-8859-1">
8 <!--
10 font-family: Symbol
12 -->
19 <!-- #BeginDate format:En2m -->11-Sep-2010 05:56<!-- #EndDate -->
26 Serial Port: <tt>/dev/wwvb<i>u</i></tt>; 9600 baud, 8-bits, no parity<br>
30 …accuracy of the WWVB clocks is 100 <span class="style1">m</span>s relative to the broadcast signal…
31 <p>The DIPswitches on these clocks should be set to 24-hour display, AUTO DST off, data format 0 or…
35 <p>on-time = first <cr><br>
[all …]
|
| /freebsd/sys/contrib/device-tree/Bindings/power/supply/ |
| H A D | richtek,rt9467.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
11 - ChiaEn Wu <chiaen_wu@richtek.com>
14 RT9467 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
16 MOSFETs, input current sensing and regulation, high-accuracy voltage
20 The RT9467 also features USB On-The-Go (OTG) support. It also integrates
21 D+/D- pin for USB host/charging port detection.
24 https://www.richtek.com/assets/product_file/RT9467/DS9467-01.pdf
[all …]
|
| /freebsd/sys/contrib/device-tree/Bindings/hwmon/ |
| H A D | ti,ina2xx.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Krzyszto
[all...] |
| H A D | adi,adm1275.yaml | 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Krzysztof Kozlowski <krzk@kernel.org>
14 The ADM1293 and ADM1294 are high accuracy integrated digital power monitors
15 that offer digital current, voltage, and power monitoring using an on-chip,
16 12-bit analog-to-digital converter (ADC), communicated through a PMBus
25 - adi,adm1075
26 - adi,adm1272
27 - adi,adm1275
[all …]
|
| /freebsd/sys/contrib/device-tree/Bindings/mfd/ |
| H A D | rohm,bd70528-pmic.txt | 3 BD70528MWV is an ultra-low quiescent current general purpose, single-chip,
4 power management IC for battery-powered portable devices. The IC
5 integrates 3 ultra-low current consumption buck converters, 3 LDOs and 2
6 LED Drivers. Also included are 4 GPIOs, a real-time clock (RTC), a 32kHz
7 clock gate, high-accuracy VREF for use with an external ADC, flexible
8 dual-input power path, 10 bit SAR ADC for battery temperature monitor and
12 - compatible : Should be "rohm,bd70528"
13 - reg : I2C slave address.
14 - interrupts : The interrupt line the device is connected to.
15 - interrupt-controller : To indicate BD70528 acts as an interrupt controller.
[all …]
|
| /freebsd/contrib/arm-optimized-routines/math/ |
| H A D | erff.c | 2 * Single-precision erf(x) function.
5 * SPDX-License-Identifier: MIT OR Apache-2.0 WITH LLVM-exception
12 #define TwoOverSqrtPiMinusOne 0x1.06eba8p-3f
26 Worst-case error is 1.09ulps at 0x1.c111acp-1. */
38 computed on [0.0, 0.921875] and [0.921875, 4.0], which brought accuracy in erff()
45 { /* |x| < 2^(-28). */ in erff()
47 { /* |x| < 2^(-119). */ in erff()
66 { /* |x| < 4.0 - Use a custom Estrin scheme. */ in erff()
69 /* Start with Estrin scheme on high order (small magnitude) coefficients. */ in erff()
83 r = expf (-r); in erff()
[all …]
|
| /freebsd/contrib/ntp/html/hints/ |
| H A D | solaris.html | 10 <!-- #BeginDate format:En2m -->27-Jan-2014 05:31<!-- #EndDate -->
13 <! -- This is deliberately not a mailto -- > <jhawk@MIT.EDU>
23 <A HREF="solaris-dosynctodr.html">Here is the report</A>.
27 to the hardware time-of-day clock"). This can be done with the
30 tickadj -s
34 echo dosynctodr/W0 | adb -k -w /dev/ksyms /dev/mem
72 The NTP Version 3 specification RFC-1305 calls for a maximum
73 oscillator frequency tolerance of +-100 parts-per-million (PPM), which is
79 release, this tolerance has been increased to +-500 PPM. <p>However, in the
84 each interval- timer interrupt, while the variable <tt>tickadj</tt> is used
[all …]
|
| /freebsd/contrib/ntp/sntp/libevent/ |
| H A D | evutil_time.c | 2 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
27 #include "event2/event-config.h"
28 #include "evconfig-private.h"
62 #include "util-internal.h"
63 #include "log-internal.h"
64 #include "mm-internal.h"
82 * an unaligned (!) 64-bit value containing the number of in evutil_gettimeofday()
83 * 100-nanosecond intervals since 1 January 1601 UTC. */ in evutil_gettimeofday()
94 return -1; in evutil_gettimeofday()
115 return -1; in evutil_gettimeofday()
[all …]
|
| /freebsd/contrib/libevent/ |
| H A D | evutil_time.c | 2 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
27 #include "event2/event-config.h"
28 #include "evconfig-private.h"
62 #include "util-internal.h"
63 #include "log-internal.h"
64 #include "mm-internal.h"
82 * an unaligned (!) 64-bit value containing the number of in evutil_gettimeofday()
83 * 100-nanosecond intervals since 1 January 1601 UTC. */ in evutil_gettimeofday()
94 return -1; in evutil_gettimeofday()
115 return -1; in evutil_gettimeofday()
[all …]
|
| /freebsd/contrib/ntp/ntpd/ |
| H A D | refclock_heath.c | 2 * refclock_heath - clock driver for Heath GC-1000
3 * (but no longer the GC-1001 Model II, which apparently never worked)
25 * This driver supports the Heath GC-1000 Most Accurate Clock, with
27 * robust than other supported receivers. Its claimed accuracy is 100 ms
30 * noise sources, etc. When not synchronized, the accuracy is at the
37 * There were two GC-1000 versions supported by this driver. The original
38 * GC-1000 with RS-232 output first appeared in 1983, but dissapeared
39 * from the market a few years later. The GC-100
[all...] |