| /linux-6.8/drivers/media/usb/gspca/ |
| D | autogain_functions.c | 3 * Functions for auto gain.
9 /* auto gain and exposure algorithm based on the knee algorithm described here:
12 Returns 0 if no changes were made, 1 if the gain and or exposure settings
22 s32 gain, orig_gain, exposure, orig_exposure; in gspca_expo_autogain() local
28 orig_gain = gain = v4l2_ctrl_g_ctrl(gspca_dev->gain); in gspca_expo_autogain()
40 if (gain > gain_knee) in gspca_expo_autogain()
41 gain--; in gspca_expo_autogain()
44 else if (gain > gspca_dev->gain->default_value) in gspca_expo_autogain()
45 gain--; in gspca_expo_autogain()
48 else if (gain > gspca_dev->gain->minimum) in gspca_expo_autogain()
[all …]
|
| D | sonixb.c | 14 0x10 high nibble red gain low nibble blue gain
15 0x11 low nibble green gain
17 0x05 red gain 0-127
18 0x06 blue gain 0-127
19 0x07 green gain 0-127
115 if we adjust the gain or exposure we must ignore at least the next frame for
230 add a bit additional red gain and a lot additional blue gain, which
291 0x09 Blue Gain
292 0x0a Green1 Gain
293 0x0b Green2 Gain
[all …]
|
| /linux-6.8/sound/soc/tegra/ |
| D | tegra210_sfc.c | 54 0x0001d727,//input gain
58 0x00000002,//output gain
60 0x000005d6,//input gain
64 0x00000003,//output gain
77 0x0000015f,//input gain
81 0x00000001//output gain
86 0x0001d727,//input gain
90 0x00000002//output gain
95 0x0001d727,//input gain
99 0x00000002,//output gain
[all …]
|
| /linux-6.8/sound/soc/codecs/ |
| D | es83xx-dsm-common.h | 158 /* Volume - Gain */
159 #define LINEIN_GAIN_0db 0x00 /* gain = 0db */
160 #define LINEIN_GAIN_3db 0x01 /* gain = +3db */
161 #define LINEIN_GAIN_6db 0x02 /* gain = +6db */
162 #define LINEIN_GAIN_9db 0x03 /* gain = +9db */
163 #define LINEIN_GAIN_12db 0x04 /* gain = +12db */
164 #define LINEIN_GAIN_15db 0x05 /* gain = +15db */
165 #define LINEIN_GAIN_18db 0x06 /* gain = +18db */
166 #define LINEIN_GAIN_21db 0x07 /* gain = +21db */
167 #define LINEIN_GAIN_24db 0x08 /* gain = +24db */
[all …]
|
| /linux-6.8/drivers/iio/ |
| D | industrialio-gts-helper.c | 2 /* gain-time-scale conversion helpers for IIO light sensors
22 * iio_gts_get_gain - Convert scale to total gain
24 * Internal helper for converting scale to total gain.
29 * @scale: Linearized scale to compute the gain for.
31 * Return: (floored) gain corresponding to the scale. -EINVAL if scale
58 * gain_get_scale_fraction - get the gain or time based on scale and known one
63 * @scale: Linearized scale to compute the gain/time for.
64 * @known: Either integration time or gain depending on which one is known
65 * @unknown: Pointer to variable where the computed gain/time is stored
67 * Internal helper for computing unknown fraction of total gain.
[all …]
|
| /linux-6.8/sound/soc/mediatek/mt8186/ |
| D | mt8186-dai-hw-gain.c | 3 // MediaTek ALSA SoC Audio DAI HW Gain Control
12 #define HW_GAIN_1_EN_W_NAME "HW GAIN 1 Enable"
13 #define HW_GAIN_2_EN_W_NAME "HW GAIN 2 Enable"
58 /* let hw gain ramp up, set cur gain to 0 */ in mtk_hw_gain_event()
61 /* set target gain to 0 */ in mtk_hw_gain_event()
96 SND_SOC_DAPM_INPUT("HW Gain 1 Out Endpoint"),
97 SND_SOC_DAPM_INPUT("HW Gain 2 Out Endpoint"),
98 SND_SOC_DAPM_OUTPUT("HW Gain 1 In Endpoint"),
102 {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH1"},
103 {"HW Gain 1 In", NULL, "HW_GAIN1_IN_CH2"},
[all …]
|
| /linux-6.8/drivers/iio/amplifiers/ |
| D | hmc425a.c | 3 * HMC425A and similar Gain Amplifiers
44 u32 gain; member
64 int code, gain = 0; in hmc425a_read_raw() local
70 code = st->gain; in hmc425a_read_raw()
74 gain = ~code * -500; in hmc425a_read_raw()
77 gain = ~code * -1000; in hmc425a_read_raw()
81 gain = code * -2000; in hmc425a_read_raw()
85 *val = gain / 1000; in hmc425a_read_raw()
86 *val2 = (gain % 1000) * 1000; in hmc425a_read_raw()
104 int code = 0, gain; in hmc425a_write_raw() local
[all …]
|
| D | ad8366.c | 3 * AD8366 and similar Gain Amplifiers
4 * This driver supports the following gain amplifiers:
5 * AD8366 Dual-Digital Variable Gain Amplifier (VGA)
6 * ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
7 * ADL5240 Digitally controlled variable gain amplifier (VGA)
120 int code, gain = 0; in ad8366_read_raw() local
129 gain = code * 253 + 4500; in ad8366_read_raw()
132 gain = 15000 - code * 1000; in ad8366_read_raw()
135 gain = 20000 - 31500 + code * 500; in ad8366_read_raw()
138 gain = -1 * code * 500; in ad8366_read_raw()
[all …]
|
| D | Kconfig | 3 # Gain Amplifiers, etc.
10 tristate "Analog Devices AD8366 and similar Gain Amplifiers"
16 gain amplifiers. This driver supports the following gain amplifiers
18 AD8366 Dual-Digital Variable Gain Amplifier (VGA)
19 ADA4961 BiCMOS RF Digital Gain Amplifier (DGA)
20 ADL5240 Digitally controlled variable gain amplifier (VGA)
39 tristate "Analog Devices HMC425A and similar GPIO Gain Amplifiers"
43 gain amplifiers or step attenuators.
|
| /linux-6.8/include/linux/iio/ |
| D | iio-gts-helper.h | 2 /* gain-time-scale conversion helpers for IIO light sensors
15 * struct iio_gain_sel_pair - gain - selector values
18 * (gain) using a register interface. This structure describes amplification
21 * @gain: Gain (multiplication) value. Gain must be positive, negative
23 * @sel: Selector (usually register value) used to indicate this gain.
27 int gain; member
36 * of measured values (gain). This structure describes the relation of
74 .gain = (_gain), \
118 * @gts: Gain time scale descriptor
137 * @gts: Gain time scale descriptor
[all …]
|
| /linux-6.8/Documentation/userspace-api/media/v4l/ |
| D | ext-ctrls-rf-tuner.rst | 50 Enables/disables LNA automatic gain control (AGC)
53 Enables/disables mixer automatic gain control (AGC)
56 Enables/disables IF automatic gain control (AGC)
61 LNA gain and the RF gain in this document is that the LNA gain is
62 integrated in the tuner chip while the RF gain is a separate chip.
63 There may be both RF and LNA gain controls in the same device. The
67 LNA (low noise amplifier) gain is first gain stage on the RF tuner
70 ``V4L2_CID_RF_TUNER_RF_GAIN`` to understand how RF gain and LNA gain
75 Mixer gain is second gain stage on the RF tuner signal path. It is
81 IF gain is last gain stage on the RF tuner signal path. It is
|
| /linux-6.8/drivers/staging/media/atomisp/pci/isp/kernels/dp/dp_1.0/ |
| D | ia_css_dp.host.c | 51 int gain = from->gain; in ia_css_dp_encode() local
62 to->gain = in ia_css_dp_encode()
63 uDIGIT_FITTING(from->gain, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
66 uDIGIT_FITTING(gain * gr / r, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
68 uDIGIT_FITTING(gain * gb / r, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
70 uDIGIT_FITTING(gain * gb / b, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
72 uDIGIT_FITTING(gain * gr / b, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
74 uDIGIT_FITTING(gain * r / gr, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
76 uDIGIT_FITTING(gain * b / gr, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
78 uDIGIT_FITTING(gain * b / gb, 8, SH_CSS_DP_GAIN_SHIFT); in ia_css_dp_encode()
[all …]
|
| /linux-6.8/drivers/iio/light/ |
| D | rohm-bu27008.c | 183 * Available scales with gain 1x - 1024x, timings 55, 100, 200, 400 mS
184 * Time impacts to gain: 1x, 2x, 4x, 8x.
186 * => Max total gain is HWGAIN * gain by integration time (8 * 1024) = 8192
191 * total gain 8192 will be 1953125
196 * On BU27010 available scales with gain 1x - 4096x,
197 * timings 55, 100, 200, 400 mS. Time impacts to gain: 1x, 2x, 4x, 8x.
199 * => Max total gain is HWGAIN * gain by integration time (8 * 4096)
201 * Using NANO precision for scale we must use scale 64x corresponding gain 1x
206 /* See the data sheet for the "Gain Setting" table */
296 * All the RGBC channels share the same gain.
[all …]
|
| /linux-6.8/drivers/net/wireless/broadcom/b43/ |
| D | phy_n.h | 28 #define B43_NPHY_C1_CGAINI B43_PHY_N(0x01C) /* Core 1 compute gain info */
29 #define B43_NPHY_C1_CGAINI_GAINBKOFF 0x001F /* Gain backoff */
31 #define B43_NPHY_C1_CGAINI_CLIPGBKOFF 0x03E0 /* Clip gain backoff */
33 #define B43_NPHY_C1_CGAINI_GAINSTEP 0x1C00 /* Gain step */
36 #define B43_NPHY_C1_CCK_CGAINI B43_PHY_N(0x01D) /* Core 1 CCK compute gain info */
37 #define B43_NPHY_C1_CCK_CGAINI_GAINBKOFF 0x001F /* Gain backoff */
38 #define B43_NPHY_C1_CCK_CGAINI_CLIPGBKOFF 0x01E0 /* CCK barely clip gain backoff */
39 #define B43_NPHY_C1_MINMAX_GAIN B43_PHY_N(0x01E) /* Core 1 min/max gain */
40 #define B43_NPHY_C1_MINGAIN 0x00FF /* Minimum gain */
42 #define B43_NPHY_C1_MAXGAIN 0xFF00 /* Maximum gain */
[all …]
|
| /linux-6.8/drivers/net/wireless/mediatek/mt76/mt76x2/ |
| D | phy.c | 15 s8 gain; in mt76x2_adjust_high_lna_gain() local
17 gain = FIELD_GET(MT_BBP_AGC_LNA_HIGH_GAIN, in mt76x2_adjust_high_lna_gain()
19 gain -= offset / 2; in mt76x2_adjust_high_lna_gain()
20 mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_LNA_HIGH_GAIN, gain); in mt76x2_adjust_high_lna_gain()
26 s8 gain; in mt76x2_adjust_agc_gain() local
28 gain = FIELD_GET(MT_BBP_AGC_GAIN, mt76_rr(dev, MT_BBP(AGC, reg))); in mt76x2_adjust_agc_gain()
29 gain += offset; in mt76x2_adjust_agc_gain()
30 mt76_rmw_field(dev, MT_BBP(AGC, reg), MT_BBP_AGC_GAIN, gain); in mt76x2_adjust_agc_gain()
144 int base_power, gain; in mt76x2_phy_set_txpower() local
163 gain = min(txp_0, txp_1); in mt76x2_phy_set_txpower()
[all …]
|
| /linux-6.8/drivers/iio/adc/ |
| D | hx711.c | 24 /* gain to pulse and scale conversion */
29 int gain; member
49 static int hx711_get_gain_to_pulse(int gain) in hx711_get_gain_to_pulse() argument
54 if (hx711_gain_to_scale[i].gain == gain) in hx711_get_gain_to_pulse()
59 static int hx711_get_gain_to_scale(int gain) in hx711_get_gain_to_scale() argument
64 if (hx711_gain_to_scale[i].gain == gain) in hx711_get_gain_to_scale()
75 return hx711_gain_to_scale[i].gain; in hx711_get_scale_to_gain()
84 int gain_set; /* gain set on device */
85 int gain_chan_a; /* gain for channel A */
207 /* after a reset the gain is 128 */ in hx711_reset()
[all …]
|
| D | ad7780.c | 65 unsigned int gain; member
122 *val = voltage_uv * st->gain; in ad7780_read_raw()
148 unsigned int full_scale, gain; in ad7780_write_raw() local
160 gain = DIV_ROUND_CLOSEST_ULL(vref, full_scale); in ad7780_write_raw()
161 gain = DIV_ROUND_CLOSEST(gain, val2); in ad7780_write_raw()
162 st->gain = gain; in ad7780_write_raw()
163 if (gain < AD7780_GAIN_MIDPOINT) in ad7780_write_raw()
164 gain = 0; in ad7780_write_raw()
166 gain = 1; in ad7780_write_raw()
167 gpiod_set_value(st->gain_gpio, gain); in ad7780_write_raw()
[all …]
|
| /linux-6.8/drivers/staging/media/atomisp/pci/isp/kernels/ctc/ctc_1.0/ |
| D | ia_css_ctc_types.h | 25 /* Fractional bits for CTC gain (used only for ISP1).
28 * of gain(=8), but also the bits(=5) to convert chroma
31 * Gain (struct ia_css_ctc_table) : u5.8
34 * Output = (Input * Gain) >> IA_CSS_CTC_COEF_SHIFT
60 u16 y0; /** 1st kneepoint gain.
63 u16 y1; /** 2nd kneepoint gain.
66 u16 y2; /** 3rd kneepoint gain.
69 u16 y3; /** 4th kneepoint gain.
72 u16 y4; /** 5th kneepoint gain.
75 u16 y5; /** 6th kneepoint gain.
[all …]
|
| /linux-6.8/drivers/comedi/drivers/ |
| D | dt2811.c | 28 * - A/D ranges are not programmable but the gain is. The AI subdevice has
29 * a range_table containing all the possible analog input range/gain
31 * your board configuration and the desired gain to correctly convert
33 * gain.
57 #define DT2811_ADGCR_REG 0x01 /* r/w A/D Gain/Channel */
105 * The gain may be set to 1, 2, 4, or 8 (on the dt2811-pgh) or to
110 BIP_RANGE(5), /* range 0: gain=1 */
111 BIP_RANGE(2.5), /* range 1: gain=2 */
112 BIP_RANGE(1.25), /* range 2: gain=4 */
113 BIP_RANGE(0.625), /* range 3: gain=8 */
[all …]
|
| /linux-6.8/drivers/iio/accel/ |
| D | st_accel_core.c | 156 .gain = IIO_G_TO_M_S_2(1000),
161 .gain = IIO_G_TO_M_S_2(2000),
166 .gain = IIO_G_TO_M_S_2(4000),
171 .gain = IIO_G_TO_M_S_2(12000),
235 .gain = IIO_G_TO_M_S_2(1000),
240 .gain = IIO_G_TO_M_S_2(2000),
245 .gain = IIO_G_TO_M_S_2(3900),
319 .gain = IIO_G_TO_M_S_2(61),
324 .gain = IIO_G_TO_M_S_2(122),
329 .gain = IIO_G_TO_M_S_2(183),
[all …]
|
| /linux-6.8/Documentation/userspace-api/media/drivers/ |
| D | ccs.rst | 65 Analogue gain model
68 The CCS defines an analogue gain model where the gain can be calculated using
71 gain = m0 * x + c0 / (m1 * x + c1)
81 The analogue gain (``x`` in the formula) is controlled through
84 Alternate analogue gain model
87 The CCS defines another analogue gain model called alternate analogue gain. In
88 this case, the formula to calculate actual gain consists of linear and
91 gain = linear * 2 ^ exponent
|
| /linux-6.8/Documentation/devicetree/bindings/iio/dac/ |
| D | adi,ad3552r.yaml | 89 adi,gain-offset:
90 description: Gain offset used in the above formula
95 adi,gain-scaling-p-inv-log2:
96 description: GainP = 1 / ( 2 ^ adi,gain-scaling-p-inv-log2)
100 adi,gain-scaling-n-inv-log2:
101 description: GainN = 1 / ( 2 ^ adi,gain-scaling-n-inv-log2)
109 - adi,gain-offset
110 - adi,gain-scaling-p-inv-log2
111 - adi,gain-scaling-n-inv-log2
210 adi,gain-offset = <5>;
[all …]
|
| /linux-6.8/drivers/iio/magnetometer/ |
| D | st_magn_core.c | 179 .gain = 1100,
185 .gain = 855,
191 .gain = 670,
197 .gain = 450,
203 .gain = 400,
209 .gain = 330,
215 .gain = 230,
258 .gain = 909,
264 .gain = 1169,
270 .gain = 1492,
[all …]
|
| /linux-6.8/drivers/net/wireless/realtek/rtw89/ |
| D | rtw8922a.c | 405 struct rtw89_phy_efuse_gain *gain = &rtwdev->efuse_gain; in rtw8922a_efuse_parsing_gain_offset() local
410 gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_2G_CCK] = map->rx_gain_a._2g_cck; in rtw8922a_efuse_parsing_gain_offset()
411 gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_2G_CCK] = map->rx_gain_b._2g_cck; in rtw8922a_efuse_parsing_gain_offset()
412 gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_2G_OFDM] = map->rx_gain_a._2g_ofdm; in rtw8922a_efuse_parsing_gain_offset()
413 gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_2G_OFDM] = map->rx_gain_b._2g_ofdm; in rtw8922a_efuse_parsing_gain_offset()
414 gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_LOW] = map->rx_gain_a._5g_low; in rtw8922a_efuse_parsing_gain_offset()
415 gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_5G_LOW] = map->rx_gain_b._5g_low; in rtw8922a_efuse_parsing_gain_offset()
416 gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_MID] = map->rx_gain_a._5g_mid; in rtw8922a_efuse_parsing_gain_offset()
417 gain->offset[RF_PATH_B][RTW89_GAIN_OFFSET_5G_MID] = map->rx_gain_b._5g_mid; in rtw8922a_efuse_parsing_gain_offset()
418 gain->offset[RF_PATH_A][RTW89_GAIN_OFFSET_5G_HIGH] = map->rx_gain_a._5g_high; in rtw8922a_efuse_parsing_gain_offset()
[all …]
|
| /linux-6.8/sound/mips/ |
| D | ad1843.c | 37 ad1843_RIG = { 2, 0, 4 }, /* Right ADC Input Gain */
38 ad1843_RMGE = { 2, 4, 1 }, /* Right ADC Mic Gain Enable */
40 ad1843_LIG = { 2, 8, 4 }, /* Left ADC Input Gain */
41 ad1843_LMGE = { 2, 12, 1 }, /* Left ADC Mic Gain Enable */
43 ad1843_RD2M = { 3, 0, 5 }, /* Right DAC 2 Mix Gain/Atten */
45 ad1843_LD2M = { 3, 8, 5 }, /* Left DAC 2 Mix Gain/Atten */
47 ad1843_RX1M = { 4, 0, 5 }, /* Right Aux 1 Mix Gain/Atten */
49 ad1843_LX1M = { 4, 8, 5 }, /* Left Aux 1 Mix Gain/Atten */
51 ad1843_RX2M = { 5, 0, 5 }, /* Right Aux 2 Mix Gain/Atten */
53 ad1843_LX2M = { 5, 8, 5 }, /* Left Aux 2 Mix Gain/Atten */
[all …]
|