| /kernel/linux/linux-5.10/include/linux/iio/adc/ |
| D | ad_sigma_delta.h | 1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Support code for Analog Devices Sigma-Delta ADCs
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
19 * struct ad_sigma_delta_calib_data - Calibration data for Sigma Delta devices
32 * struct ad_sigma_delta_info - Sigma Delta driver specific callbacks and options
38 * if there is just one read-only sample data shift register.
57 * struct ad_sigma_delta - Sigma Delta device struct
58 * @spi: The spi device associated with the Sigma Delta device.
59 * @trig: The IIO trigger associated with the Sigma Delta device.
61 * Most of the fields are private to the sigma delta library code and should not
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| /kernel/linux/linux-4.19/include/linux/iio/adc/ |
| D | ad_sigma_delta.h | 2 * Support code for Analog Devices Sigma-Delta ADCs
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
7 * Licensed under the GPL-2.
20 * struct ad_sigma_delta_calib_data - Calibration data for Sigma Delta devices
33 * struct ad_sigma_delta_info - Sigma Delta driver specific callbacks and options
39 * if there is just one read-only sample data shift register.
53 * struct ad_sigma_delta - Sigma Delta device struct
54 * @spi: The spi device associated with the Sigma Delta device.
55 * @trig: The IIO trigger associated with the Sigma Delta device.
57 * Most of the fields are private to the sigma delta library code and should not
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/iio/adc/ |
| D | st,stm32-dfsdm-adc.txt | 4 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
5 interface external sigma delta modulators to STM32 micro controllers.
7 - Sigma delta modulators (motor control, metering...)
8 - PDM microphones (audio digital microphone)
16 ------------------------------------
18 - compatible: Should be one of:
19 "st,stm32h7-dfsdm"
20 "st,stm32mp1-dfsdm"
21 - reg: Offset and length of the DFSDM block register set.
22 - clocks: IP and serial interfaces clocking. Should be set according
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| D | sigma-delta-modulator.txt | 1 Device-Tree bindings for sigma delta modulator
4 - compatible: should be "ads1201", "sd-modulator". "sd-modulator" can be use
6 - #io-channel-cells = <0>: See the IIO bindings section "IIO consumers".
11 compatible = "sd-modulator";
12 #io-channel-cells = <0>;
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/iio/adc/ |
| D | st,stm32-dfsdm-adc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/st,stm32-dfsdm-adc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Fabrice Gasnier <fabrice.gasnier@st.com>
11 - Olivier Moysan <olivier.moysan@st.com>
14 STM32 DFSDM ADC is a sigma delta analog-to-digital converter dedicated to
15 interface external sigma delta modulators to STM32 micro controllers.
17 - Sigma delta modulators (motor control, metering...)
18 - PDM microphones (audio digital microphone)
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| D | sigma-delta-modulator.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/sigma-delta-modulator.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Device-Tree bindings for sigma delta modulator
10 - Arnaud Pouliquen <arnaud.pouliquen@st.com>
15 "sd-modulator" can be used as a generic SD modulator,
18 - sd-modulator
19 - ads1201
21 '#io-channel-cells':
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| /kernel/linux/linux-5.10/drivers/iio/adc/ |
| D | ad_sigma_delta.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Support code for Analog Devices Sigma-Delta ADCs
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
34 * ad_sd_set_comm() - Set communications register
36 * @sigma_delta: The sigma delta device
43 sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK; in ad_sd_set_comm()
48 * ad_sd_write_reg() - Write a register
50 * @sigma_delta: The sigma delta device
52 * @size: Size of the register (0-3)
60 uint8_t *data = sigma_delta->tx_buf; in ad_sd_write_reg()
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| D | sd_adc_modulator.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Generic sigma delta modulator driver
5 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
29 struct device *dev = &pdev->dev; in iio_sd_mod_probe()
34 return -ENOMEM; in iio_sd_mod_probe()
36 iio->name = dev_name(dev); in iio_sd_mod_probe()
37 iio->info = &iio_sd_mod_iio_info; in iio_sd_mod_probe()
38 iio->modes = INDIO_BUFFER_HARDWARE; in iio_sd_mod_probe()
40 iio->num_channels = 1; in iio_sd_mod_probe()
41 iio->channels = &iio_sd_mod_ch; in iio_sd_mod_probe()
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
10 bool "ST-Ericsson AB8500 GPADC driver"
29 Say yes here to build support for Analog Devices AD7091R-5 ADC.
32 tristate "Analog Devices AD7124 and similar sigma-delta ADCs driver"
36 Say yes here to build support for Analog Devices AD7124-4 and AD7124-8
100 tristate "Analog Devices AD7476 1-channel ADCs driver and other similar devices from AD an TI"
126 ad7605-4, ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC).
137 ad7605-4, ad7606, ad7606-6, ad7606-4 analog to digital converters (ADC).
148 Say yes here to build support for Analog Devices AD7766, AD7766-1,
149 AD7766-2, AD7767, AD7767-1, AD7767-2 SPI analog to digital converters.
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| /kernel/linux/linux-4.19/drivers/iio/adc/ |
| D | ad_sigma_delta.c | 2 * Support code for Analog Devices Sigma-Delta ADCs
5 * Author: Lars-Peter Clausen <lars@metafoo.de>
7 * Licensed under the GPL-2.
35 * ad_sd_set_comm() - Set communications register
37 * @sigma_delta: The sigma delta device
44 sigma_delta->comm = comm & AD_SD_COMM_CHAN_MASK; in ad_sd_set_comm()
49 * ad_sd_write_reg() - Write a register
51 * @sigma_delta: The sigma delta device
53 * @size: Size of the register (0-3)
61 uint8_t *data = sigma_delta->data; in ad_sd_write_reg()
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| D | sd_adc_modulator.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Generic sigma delta modulator driver
5 * Copyright (C) 2017, STMicroelectronics - All Rights Reserved
28 struct device *dev = &pdev->dev; in iio_sd_mod_probe()
33 return -ENOMEM; in iio_sd_mod_probe()
35 iio->dev.parent = dev; in iio_sd_mod_probe()
36 iio->dev.of_node = dev->of_node; in iio_sd_mod_probe()
37 iio->name = dev_name(dev); in iio_sd_mod_probe()
38 iio->info = &iio_sd_mod_iio_info; in iio_sd_mod_probe()
39 iio->modes = INDIO_BUFFER_HARDWARE; in iio_sd_mod_probe()
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| D | Kconfig | 49 tristate "Analog Devices AD7476 and similar 1-channel ADCs driver"
67 Say yes here to build support for Analog Devices AD7766, AD7766-1,
68 AD7766-2, AD7767, AD7767-1, AD7767-2 SPI analog to digital converters.
167 called at91-sama5d2_adc.
170 tristate "X-Powers AXP20X and AXP22X ADC driver"
173 Say yes here to have support for X-Powers power management IC (PMIC)
180 tristate "X-Powers AXP288 ADC driver"
183 Say yes here to have support for X-Powers power management IC (PMIC) ADC
229 called cpcap-adc.
238 will be da9150-gpadc.
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| /kernel/linux/linux-5.10/lib/ |
| D | ts_kmp.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * lib/ts_kmp.c Knuth-Morris-Pratt text search implementation
9 * Implements a linear-time string-matching algorithm due to Knuth,
11 * computation of the transition function DELTA altogether. Its
15 * the transition function DELTA to be computed efficiently
17 * "q" = 0,1,...,m and any character "a" in SIGMA, the value
19 * is needed to compute DELTA("q", "a") [2]. Since the array PI
20 * has only m entries, whereas DELTA has O(m|SIGMA|) entries, we
21 * save a factor of |SIGMA| in the preprocessing time by computing
22 * PI rather than DELTA.
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| /kernel/linux/linux-4.19/lib/ |
| D | ts_kmp.c | 2 * lib/ts_kmp.c Knuth-Morris-Pratt text search implementation
13 * Implements a linear-time string-matching algorithm due to Knuth,
15 * computation of the transition function DELTA altogether. Its
19 * the transition function DELTA to be computed efficiently
21 * "q" = 0,1,...,m and any character "a" in SIGMA, the value
23 * is needed to compute DELTA("q", "a") [2]. Since the array PI
24 * has only m entries, whereas DELTA has O(m|SIGMA|) entries, we
25 * save a factor of |SIGMA| in the preprocessing time by computing
26 * PI rather than DELTA.
49 unsigned int i, q = 0, text_len, consumed = state->offset; in kmp_find()
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| /kernel/linux/linux-4.19/kernel/bpf/ |
| D | tnum.c | 13 const struct tnum tnum_unknown = { .value = 0, .mask = -1 };
22 u64 chi = min ^ max, delta; in tnum_range() local
28 /* e.g. if chi = 4, bits = 3, delta = (1<<3) - 1 = 7. in tnum_range()
29 * if chi = 0, bits = 0, delta = (1<<0) - 1 = 0, so we return in tnum_range()
32 delta = (1ULL << bits) - 1; in tnum_range()
33 return TNUM(min & ~delta, delta); in tnum_range()
63 u64 sm, sv, sigma, chi, mu; in tnum_add() local
67 sigma = sm + sv; in tnum_add()
68 chi = sigma ^ sv; in tnum_add()
77 dv = a.value - b.value; in tnum_sub()
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| /kernel/linux/linux-5.10/kernel/bpf/ |
| D | tnum.c | 1 // SPDX-License-Identifier: GPL-2.0-only
14 const struct tnum tnum_unknown = { .value = 0, .mask = -1 };
23 u64 chi = min ^ max, delta; in tnum_range() local
29 /* e.g. if chi = 4, bits = 3, delta = (1<<3) - 1 = 7. in tnum_range()
30 * if chi = 0, bits = 0, delta = (1<<0) - 1 = 0, so we return in tnum_range()
33 delta = (1ULL << bits) - 1; in tnum_range()
34 return TNUM(min & ~delta, delta); in tnum_range()
64 u64 sm, sv, sigma, chi, mu; in tnum_add() local
68 sigma = sm + sv; in tnum_add()
69 chi = sigma ^ sv; in tnum_add()
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| /kernel/linux/linux-5.10/drivers/clk/sunxi-ng/ |
| D | ccu_sdm.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
6 #include <linux/clk-provider.h>
15 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_is_enabled()
18 if (sdm->enable && !(readl(common->base + common->reg) & sdm->enable)) in ccu_sdm_helper_is_enabled()
21 return !!(readl(common->base + sdm->tuning_reg) & sdm->tuning_enable); in ccu_sdm_helper_is_enabled()
32 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_enable()
36 for (i = 0; i < sdm->table_size; i++) in ccu_sdm_helper_enable()
37 if (sdm->table[i].rate == rate) in ccu_sdm_helper_enable()
38 writel(sdm->table[i].pattern, in ccu_sdm_helper_enable()
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| /kernel/linux/linux-4.19/drivers/clk/sunxi-ng/ |
| D | ccu_sdm.c | 2 * Copyright (C) 2017 Chen-Yu Tsai <wens@csie.org>
10 #include <linux/clk-provider.h>
18 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_is_enabled()
21 if (sdm->enable && !(readl(common->base + common->reg) & sdm->enable)) in ccu_sdm_helper_is_enabled()
24 return !!(readl(common->base + sdm->tuning_reg) & sdm->tuning_enable); in ccu_sdm_helper_is_enabled()
35 if (!(common->features & CCU_FEATURE_SIGMA_DELTA_MOD)) in ccu_sdm_helper_enable()
39 for (i = 0; i < sdm->table_size; i++) in ccu_sdm_helper_enable()
40 if (sdm->table[i].rate == rate) in ccu_sdm_helper_enable()
41 writel(sdm->table[i].pattern, in ccu_sdm_helper_enable()
42 common->base + sdm->tuning_reg); in ccu_sdm_helper_enable()
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| /kernel/linux/linux-4.19/Documentation/devicetree/bindings/sound/ |
| D | ak5558.txt | 1 AK5558 8 channel differential 32-bit delta-sigma ADC
7 - compatible : "asahi-kasei,ak5558"
8 - reg : The I2C address of the device.
12 - reset-gpios: A GPIO specifier for the power down & reset pin.
18 compatible = "asahi-kasei,ak5558";
20 reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
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| D | ak5386.txt | 1 AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC
7 - compatible : "asahi-kasei,ak5386"
11 - reset-gpio : a GPIO spec for the reset/power down pin.
13 - va-supply : a regulator spec, providing 5.0V
14 - vd-supply : a regulator spec, providing 3.3V
19 compatible = "asahi-kasei,ak5386";
20 reset-gpio = <&gpio0 23>;
21 va-supply = <&vdd_5v0_reg>;
22 vd-supply = <&vdd_3v3_reg>;
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/sound/ |
| D | ak5558.txt | 1 AK5558 8 channel differential 32-bit delta-sigma ADC
7 - compatible : "asahi-kasei,ak5558"
8 - reg : The I2C address of the device.
12 - reset-gpios: A GPIO specifier for the power down & reset pin.
13 - AVDD-supply: Analog power supply
14 - DVDD-supply: Digital power supply
20 compatible = "asahi-kasei,ak5558";
22 reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
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| D | ak5386.txt | 1 AK5386 Single-ended 24-Bit 192kHz delta-sigma ADC
7 - compatible : "asahi-kasei,ak5386"
11 - reset-gpio : a GPIO spec for the reset/power down pin.
13 - va-supply : a regulator spec, providing 5.0V
14 - vd-supply : a regulator spec, providing 3.3V
19 compatible = "asahi-kasei,ak5386";
20 reset-gpio = <&gpio0 23>;
21 va-supply = <&vdd_5v0_reg>;
22 vd-supply = <&vdd_3v3_reg>;
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| /kernel/linux/linux-5.10/sound/soc/stm/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
44 for Sigma Delta Modulators (DFSDM) driver used
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| /kernel/linux/linux-5.10/drivers/mtd/nand/raw/atmel/ |
| D | pmecc.c | 1 // SPDX-License-Identifier: GPL-2.0
6 * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
22 * Derived from Das U-Boot source code
23 * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c)
37 * sub-section.
41 * to expose the needed lib/bch.c helpers/functions and re-use them here.
75 #define PMECC_CFG_NSECTORS(x) ((fls(x) - 1) << 8)
178 s32 *delta; member
188 /* polynomial degree is the most-significant bit index */ in deg()
189 return fls(poly) - 1; in deg()
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| /kernel/linux/linux-4.19/drivers/mtd/nand/raw/atmel/ |
| D | pmecc.c | 5 * Author: Boris Brezillon <boris.brezillon@free-electrons.com>
21 * Derived from Das U-Boot source code
22 * (u-boot-1.1.5/board/atmel/at91sam9263ek/nand.c)
40 * sub-section.
44 * to expose the needed lib/bch.c helpers/functions and re-use them here.
78 #define PMECC_CFG_NSECTORS(x) ((fls(x) - 1) << 8)
181 s32 *delta; member
191 /* polynomial degree is the most-significant bit index */ in deg()
192 return fls(poly) - 1; in deg()
200 unsigned int nn = BIT(mm) - 1; in atmel_pmecc_build_gf_tables()
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