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Searched refs:lux (Results 1 – 25 of 32) sorted by relevance

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/linux/Documentation/misc-devices/
H A Disl29003.rst22 ADC, I2C user programmable lux range select for optimized counts/lux, and
27 The driver allows to set the lux range, the bit resolution, the operational
28 mode (see below) and the power state of device and can read the current lux
46 0: 0 lux to 1000 lux (default)
47 1: 0 lux to 4000 lux
48 2: 0 lux to 16,000 lux
49 3: 0 lux to 64,000 lux
73 lux (read only):
H A Dapds990x.rst29 only lux values. Lux value is calculated using information from the both
30 channels. HW threshold level is calculated from the given lux value to match
60 RO - measured lux value
H A Dbh1770glc.rst25 ALS produces 16 bit lux values. The chip contains interrupt logic to produce
46 so that measurement produces about the expected lux value.
63 RO - measured lux value
/linux/drivers/iio/light/
H A Dcm3232.c205 u64 lux; in cm3232_get_lux() local
212 lux = (__force u64)als_info->mlux_per_bit; in cm3232_get_lux()
213 lux *= als_info->mlux_per_bit_base_it; in cm3232_get_lux()
214 lux = div_u64(lux, als_it); in cm3232_get_lux()
223 lux *= chip->regs_als; in cm3232_get_lux()
224 lux *= chip->calibscale; in cm3232_get_lux()
225 lux = div_u64(lux, CM3232_CALIBSCALE_RESOLUTION); in cm3232_get_lux()
226 lux = div_u64(lux, CM3232_MLUX_PER_LUX); in cm3232_get_lux()
228 if (lux > 0xFFFF) in cm3232_get_lux()
229 lux = 0xFFFF; in cm3232_get_lux()
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H A Dcm32181.c311 u64 lux; in cm32181_get_lux() local
317 lux = cm32181->lux_per_bit; in cm32181_get_lux()
318 lux *= cm32181->lux_per_bit_base_it; in cm32181_get_lux()
319 lux = div_u64(lux, als_it); in cm32181_get_lux()
325 lux *= ret; in cm32181_get_lux()
326 lux *= cm32181->calibscale; in cm32181_get_lux()
327 lux = div_u64(lux, CM32181_CALIBSCALE_RESOLUTION); in cm32181_get_lux()
328 lux = div_u64(lux, CM32181_LUX_PER_BIT_RESOLUTION); in cm32181_get_lux()
330 if (lux > 0xFFFF) in cm32181_get_lux()
331 lux = 0xFFFF; in cm32181_get_lux()
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H A Dtsl2583.c65 u16 lux; member
166 u32 lux; /* raw lux calculated from device data */ in tsl2583_get_lux() local
185 ret = chip->als_cur_info.lux; /* return LAST VALUE */ in tsl2583_get_lux()
232 chip->als_cur_info.lux = 0; in tsl2583_get_lux()
245 lux = 0; in tsl2583_get_lux()
261 chip->als_cur_info.lux = 0; in tsl2583_get_lux()
265 lux = ch0lux - ch1lux; in tsl2583_get_lux()
270 lux = 0; in tsl2583_get_lux()
272 lux = (lux + (chip->als_time_scale >> 1)) / in tsl2583_get_lux()
284 lux64 = lux; in tsl2583_get_lux()
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H A Dcm3605.c77 s64 lux; in cm3605_get_lux() local
97 lux = res - 30; in cm3605_get_lux()
100 lux *= cm3605->als_max; in cm3605_get_lux()
101 lux = div64_s64(lux, CM3605_AOUT_TYP_MAX_MV); in cm3605_get_lux()
103 return lux; in cm3605_get_lux()
H A Dapds9300.c66 unsigned long lux, tmp; in apds9300_calculate_lux() local
74 lux = 3150 * ch0 - (unsigned long)DIV_ROUND_UP_ULL(ch0 in apds9300_calculate_lux()
77 lux = 2290 * ch0 - 2910 * ch1; in apds9300_calculate_lux()
79 lux = 1570 * ch0 - 1800 * ch1; in apds9300_calculate_lux()
81 lux = 338 * ch0 - 260 * ch1; in apds9300_calculate_lux()
83 lux = 0; in apds9300_calculate_lux()
86 return lux / 100000; in apds9300_calculate_lux()
H A Dtsl2772.c149 u16 lux; member
434 ret = chip->als_cur_info.lux; /* return LAST VALUE */ in tsl2772_get_lux()
457 ret = chip->als_cur_info.lux; in tsl2772_get_lux()
465 int lux; in tsl2772_get_lux() local
467 lux = ((chip->als_cur_info.als_ch0 * p->ch0) - in tsl2772_get_lux()
477 lux = (lux * chip->settings.als_gain_trim) / 1000; in tsl2772_get_lux()
479 if (lux > TSL2772_LUX_CALC_OVER_FLOW) { in tsl2772_get_lux()
484 max_lux = max(max_lux, lux); in tsl2772_get_lux()
491 chip->als_cur_info.lux = max_lux; in tsl2772_get_lux()
1243 *val = chip->als_cur_info.lux; in tsl2772_read_raw()
H A Dltrf216a.c244 u64 lux; in ltrf216a_get_lux() local
256 lux = greendata * data->info->lux_multiplier * LTRF216A_WIN_FAC; in ltrf216a_get_lux()
258 return lux; in ltrf216a_get_lux()
H A Dtsl2591.c439 int counts_per_lux, int_time_fval, gain_multi, lux; in tsl2591_read_channel_data() local
483 lux = ((als_ch0 - als_ch1) * in tsl2591_read_channel_data()
486 dev_dbg(&client->dev, "Raw lux calculation: %d\n", lux); in tsl2591_read_channel_data()
489 *val = lux / 1000; in tsl2591_read_channel_data()
492 *val2 = (lux - (*val * 1000)) * 1000; in tsl2591_read_channel_data()
H A Dgp2ap002.c231 u16 lux; in gp2ap002_get_lux() local
241 lux = gp2ap002_illuminance_table[res]; in gp2ap002_get_lux()
243 return (int)lux; in gp2ap002_get_lux()
H A Dsi1133.c709 int lux; in si1133_get_lux() local
732 lux = si1133_calc_polynomial(high_vis, ir, in si1133_get_lux()
737 lux = si1133_calc_polynomial(low_vis, ir, in si1133_get_lux()
742 *val = lux >> SI1133_LUX_OUTPUT_FRACTION; in si1133_get_lux()
H A Dltr501.c306 unsigned long ratio, lux; in ltr501_calculate_lux() local
315 lux = LTR501_LUX_CONV(1774, vis_data, -1105, ir_data); in ltr501_calculate_lux()
317 lux = LTR501_LUX_CONV(3772, vis_data, 1336, ir_data); in ltr501_calculate_lux()
319 lux = LTR501_LUX_CONV(1690, vis_data, 169, ir_data); in ltr501_calculate_lux()
321 lux = 0; in ltr501_calculate_lux()
323 return lux / 1000; in ltr501_calculate_lux()
H A Dtsl2563.c425 unsigned long ratio, lux, ch0 = adc0, ch1 = adc1; in tsl2563_adc_to_lux() local
432 lux = ch0 * lp->ch0_coeff - ch1 * lp->ch1_coeff; in tsl2563_adc_to_lux()
434 return (unsigned int) (lux >> ADC_FRAC_BITS); in tsl2563_adc_to_lux()
H A Disl29018.c193 static int isl29018_read_lux(struct isl29018_chip *chip, int *lux) in isl29018_read_lux() argument
205 *lux = data_x_range * chip->calibscale + in isl29018_read_lux()
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-iio-light-tsl25836 value which is later used in calculating illuminance in lux.
13 used in calculating illuminance in lux.
19 This property is the known externally illuminance (in lux).
H A Dsysfs-bus-iio-light-tsl27726 value which is later used in calculating illuminance in lux.
/linux/drivers/misc/
H A Dtsl2550.c145 unsigned int lux; in tsl2550_calculate_lux() local
161 lux = ((c0 - c1) * ratio_lut[r]) / 256; in tsl2550_calculate_lux()
163 lux = 0; in tsl2550_calculate_lux()
168 return lux > TSL2550_MAX_LUX ? TSL2550_MAX_LUX : lux; in tsl2550_calculate_lux()
H A Disl29020.c43 unsigned long int lux; in als_lux_input_data_show() local
70 lux = ((((1 << (2 * (val & 3))))*1000) * ret_val) / 65536; in als_lux_input_data_show()
71 return sprintf(buf, "%lu\n", lux); in als_lux_input_data_show()
H A Dapds990x.c138 u32 lux; member
248 static u16 apds990x_lux_to_threshold(struct apds990x_chip *chip, u32 lux) in apds990x_lux_to_threshold() argument
254 if (lux == 0) in apds990x_lux_to_threshold()
256 else if (lux == APDS_RANGE) in apds990x_lux_to_threshold()
274 lux = lux * (APDS_CALIB_SCALER / 4) / (chip->lux_calib / 4); in apds990x_lux_to_threshold()
280 thres = lux * cpl / 64; in apds990x_lux_to_threshold()
498 chip->lux = chip->lux_raw; in apds990x_irq()
640 result = (chip->lux * chip->lux_calib) / APDS_CALIB_SCALER; in apds990x_lux_show()
H A Dbh1770glc.c180 int lux) in bh1770_lux_interrupt_control() argument
182 chip->int_mode_lux = lux; in bh1770_lux_interrupt_control()
186 (lux << 1) | chip->int_mode_prox); in bh1770_lux_interrupt_control()
288 u32 lux; in bh1770_lux_raw_to_adjusted() local
289 lux = ((u32)raw * chip->lux_corr) / BH1770_LUX_CORR_SCALE; in bh1770_lux_raw_to_adjusted()
290 return min(lux, (u32)BH1770_LUX_RANGE); in bh1770_lux_raw_to_adjusted()
/linux/drivers/hid/amd-sfh-hid/sfh1_1/
H A Damd_sfh_interface.h149 u32 lux; member
H A Damd_sfh_interface.c156 *ambient_light = amd_sfh_float_to_int(als_data.lux); in amd_sfh_als_info()
/linux/Documentation/iio/
H A Dopt4060.rst25 lux = GREEN_RAW x 2.15e-3

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