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Searched full:notch (Results 1 – 21 of 21) sorted by relevance

/linux/drivers/isdn/mISDN/
H A Ddsp_ecdis.h19 struct biquad2_state notch; member
35 /* Elliptic notch */ in echo_can_disable_detector_init()
37 to the asymmetric walls of the notch */ in echo_can_disable_detector_init()
38 biquad2_init(&det->notch, in echo_can_disable_detector_init()
60 notched = biquad2(&det->notch, amp); in echo_can_disable_detector_update()
62 the notch (i.e. overall channel energy - tone energy => noise). in echo_can_disable_detector_update()
65 Damp the notch energy a little less, so we don't damp out the in echo_can_disable_detector_update()
73 /* The notch says yes, so we have the tone. */ in echo_can_disable_detector_update()
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-iio-adc-max114106 Enable or disable a notch filter.
13 Center frequency of the notch filter in Hz.
/linux/sound/soc/codecs/
H A Dwm8940.c12 * Notch filter control
120 { 0x10, 0x0000 }, /* Notch Filter 1 Control 1 */
121 { 0x11, 0x0000 }, /* Notch Filter 1 Control 2 */
122 { 0x12, 0x0000 }, /* Notch Filter 2 Control 1 */
123 { 0x13, 0x0000 }, /* Notch Filter 2 Control 2 */
124 { 0x14, 0x0000 }, /* Notch Filter 3 Control 1 */
125 { 0x15, 0x0000 }, /* Notch Filter 3 Control 2 */
126 { 0x16, 0x0000 }, /* Notch Filter 4 Control 1 */
127 { 0x17, 0x0000 }, /* Notch Filter 4 Control 2 */
H A Dwm8983.h502 * R27 (0x1B) - Notch Filter 1
517 * R28 (0x1C) - Notch Filter 2
528 * R29 (0x1D) - Notch Filter 3
539 * R30 (0x1E) - Notch Filter 4
H A Dwm8985.h514 * R27 (0x1B) - Notch Filter 1
529 * R28 (0x1C) - Notch Filter 2
540 * R29 (0x1D) - Notch Filter 3
551 * R30 (0x1E) - Notch Filter 4
H A Des8316.c105 SOC_SINGLE("DAC Notch Filter Switch", ES8316_DAC_SET2, 6, 1, 0),
H A Dwm8996.c464 SOC_SINGLE("DSP1 Capture Notch Filter Switch", WM8996_DSP1_TX_FILTERS,
470 SOC_SINGLE("DSP2 Capture Notch Filter Switch", WM8996_DSP2_TX_FILTERS,
H A Dcs42l42.c444 SOC_SINGLE("ADC Notch Switch", CS42L42_ADC_CTL,
/linux/drivers/media/rc/keymaps/
H A Drc-medion-x10-digitainer.c29 { 0x78, KEY_UP }, /* scrollwheel up 1 notch */
32 { 0x70, KEY_DOWN }, /* scrollwheel down 1 notch */
/linux/drivers/net/wireless/realtek/rtw88/
H A Drtw8703b.c686 static void rtw8703b_cfg_notch(struct rtw_dev *rtwdev, u8 channel, bool notch) in rtw8703b_cfg_notch() argument
688 if (!notch) { in rtw8703b_cfg_notch()
749 "Bug: Notch filter enable called for channel %u!", in rtw8703b_cfg_notch()
759 bool notch; in rtw8703b_spur_cal() local
779 notch = rtw8703b_check_spur_ov_thres(rtwdev, freq, SPUR_THRES); in rtw8703b_spur_cal()
780 rtw8703b_cfg_notch(rtwdev, channel, notch); in rtw8703b_spur_cal()
H A Drtw8723d.c257 static void rtw8723d_cfg_notch(struct rtw_dev *rtwdev, u8 channel, bool notch) in rtw8723d_cfg_notch() argument
259 if (!notch) { in rtw8723d_cfg_notch()
298 bool notch; in rtw8723d_spur_cal() local
305 notch = rtw8723d_check_spur_ov_thres(rtwdev, channel, SPUR_THRES); in rtw8723d_spur_cal()
306 rtw8723d_cfg_notch(rtwdev, channel, notch); in rtw8723d_spur_cal()
/linux/Documentation/gpu/
H A Dintroduction.rst77 Anyone looking to kick it up a notch can find a list of janitorial tasks on
/linux/drivers/media/tuners/
H A Dtda8290.c148 { { 0x03, 0x48} }, /* Disable NOTCH and VIDEO filters */
/linux/drivers/media/dvb-frontends/
H A Dlgdt3306a.c1120 /* Adjust Notch Filter */ in lgdt3306a_monitor_vsb()
1125 if (nCombDet == 0) { /* Turn on the Notch Filter */ in lgdt3306a_monitor_vsb()
H A Ddrxk_hard.c3590 /* Set Noise Estimation notch width and enable DC fix */ in set_dvbt_standard()
/linux/drivers/iio/adc/
H A Dad7192.c74 #define AD7192_MODE_REJ60 BIT(10) /* 50/60Hz notch filter */
/linux/drivers/iio/temperature/
H A Dltc2983.c1302 device_property_read_u32(dev, "adi,filter-notch-freq", &st->filter_notch_freq); in ltc2983_parse_fw()
/linux/arch/arm/mm/
H A Ddma-mapping.c908 /* Go down a notch at first sign of pressure */ in __iommu_alloc_buffer()
/linux/sound/pci/asihpi/
H A Dhpi.h859 HPI_FILTER_TYPE_BANDSTOP = 7 /**< standard band stop/notch */
/linux/drivers/net/wireless/realtek/rtl8xxxu/
H A D8188f.c436 /* enable notch filter */ in rtl8188f_spur_calibration()
/linux/Documentation/networking/
H A Dcan.rst710 where the CAN_INV_FILTER flag is set in order to notch single CAN IDs or