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/linux/drivers/i2c/
H A Di2c-slave-eeprom.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * I2C slave mode EEPROM simulator
5 * Copyright (C) 2014 by Wolfram Sang, Sang Engineering <wsa@sang-engineering.com>
9 * this driver does not support simulating EEPROM types which take more than
15 * The ST-M24C64 sends only 0xff then. Needs verification with other
43 #define I2C_SLAVE_DEVICE_MAGIC(_len, _flags) ((_flags) | ((_len) - 1))
48 struct eeprom_data *eeprom = i2c_get_clientdata(client); in i2c_slave_eeprom_slave_cb() local
52 if (eeprom->idx_write_cnt < eeprom->num_address_bytes) { in i2c_slave_eeprom_slave_cb()
53 if (eeprom->idx_write_cnt == 0) in i2c_slave_eeprom_slave_cb()
54 eeprom->buffer_idx = 0; in i2c_slave_eeprom_slave_cb()
[all …]
/linux/drivers/nvmem/
H A Drave-sp-eeprom.c1 // SPDX-License-Identifier: GPL-2.0+
4 * EEPROM driver for RAVE SP
10 #include <linux/mfd/rave-sp.h>
12 #include <linux/nvmem-provider.h>
18 * enum rave_sp_eeprom_access_type - Supported types of EEPROM access
20 * @RAVE_SP_EEPROM_WRITE: EEPROM write
21 * @RAVE_SP_EEPROM_READ: EEPROM read
29 * enum rave_sp_eeprom_header_size - EEPROM command header sizes
31 * @RAVE_SP_EEPROM_HEADER_SMALL: EEPROM header size for "small" devices (< 8K)
32 * @RAVE_SP_EEPROM_HEADER_BIG: EEPROM header size for "big" devices (> 8K)
[all …]
H A Dlpc18xx_eeprom.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * NXP LPC18xx/LPC43xx EEPROM memory NVMEM driver
15 #include <linux/nvmem-provider.h>
38 /* EEPROM device requires a ~1500 kHz clock (min 800 kHz, max 1600 kHz) */
41 /* EEPROM requires 3 ms of erase/program time between each writing */
54 static inline void lpc18xx_eeprom_writel(struct lpc18xx_eeprom_dev *eeprom, in lpc18xx_eeprom_writel() argument
57 writel(val, eeprom->reg_base + reg); in lpc18xx_eeprom_writel()
60 static inline u32 lpc18xx_eeprom_readl(struct lpc18xx_eeprom_dev *eeprom, in lpc18xx_eeprom_readl() argument
63 return readl(eeprom->reg_base + reg); in lpc18xx_eeprom_readl()
66 static int lpc18xx_eeprom_busywait_until_prog(struct lpc18xx_eeprom_dev *eeprom) in lpc18xx_eeprom_busywait_until_prog() argument
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/linux/drivers/comedi/drivers/
H A Dcb_pcidda.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Driver for the ComputerBoards / MeasurementComputing PCI-DDA series.
9 * COMEDI - Linux Control and Measurement Device Interface
10 * Copyright (C) 1997-8 David A. Schleef <ds@schleef.org>
15 * Description: MeasurementComputing PCI-DDA series
16 * Devices: [Measurement Computing] PCI-DDA08/12 (pci-dda08/12),
17 * PCI-DDA04/12 (pci-dda04/12), PCI-DDA02/12 (pci-dda02/12),
18 * PCI-DDA08/16 (pci-dda08/16), PCI-DDA04/16 (pci-dda04/16),
19 * PCI-DDA02/16 (pci-dda02/16)
33 #define EEPROM_SIZE 128 /* number of entries in eeprom */
[all …]
/linux/drivers/net/ethernet/dec/tulip/
H A Deeprom.c2 drivers/net/ethernet/dec/tulip/eeprom.c
5 Written/copyright 1994-2001 by Donald Becker.
20 /* Serial EEPROM section. */
27 /* Known cards that have old-style EEPROMs. */
33 0x0004, 0x009E, /* 10baseT-FD */
35 0x0905, 0x006D, /* 100baseTx-FD */ }},
38 0x0108, 0x8021, /* 100baseFx-FD */
40 0x0104, 0x009E, /* 10baseT-FD */
42 0x0105, 0x006D, /* 100baseTx-FD */ }},
43 {"Maxtech NX-110", 0, 0, 0xE8, { 0x1e00, 0x0000, 0x0800, 0x0513,
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/linux/drivers/gpu/drm/panel/
H A Dpanel-olimex-lcd-olinuxino.c1 // SPDX-License-Identifier: GPL-2.0+
3 * LCD-OLinuXino support for panel driver
42 char name[32]; member
70 struct lcd_olinuxino_eeprom eeprom; member
82 gpiod_set_value_cansleep(lcd->enable_gpio, 0); in lcd_olinuxino_unprepare()
83 regulator_disable(lcd->supply); in lcd_olinuxino_unprepare()
93 ret = regulator_enable(lcd->supply); in lcd_olinuxino_prepare()
97 gpiod_set_value_cansleep(lcd->enable_gpio, 1); in lcd_olinuxino_prepare()
106 struct lcd_olinuxino_info *lcd_info = &lcd->eeprom.info; in lcd_olinuxino_get_modes()
111 for (i = 0; i < lcd->eeprom.num_modes; i++) { in lcd_olinuxino_get_modes()
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/linux/sound/pci/ice1712/
H A Dice1724.c1 // SPDX-License-Identifier: GPL-2.0-or-later
48 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
86 /* check whether the clock mode is spdif-in */
97 return (!ice->is_spdif_master(ice)) && PRO_RATE_LOCKED; in is_pro_rate_locked()
116 dev_dbg(ice->card->dev, "snd_vt1724_ac97_ready: timeout\n"); in snd_vt1724_ac97_ready()
126 dev_dbg(ice->card->dev, "snd_vt1724_ac97_wait_bit: timeout\n"); in snd_vt1724_ac97_wait_bit()
127 return -EIO; in snd_vt1724_ac97_wait_bit()
134 struct snd_ice1712 *ice = ac97->private_data; in snd_vt1724_ac97_write()
139 old_cmd |= ac97->num; in snd_vt1724_ac97_write()
148 struct snd_ice1712 *ice = ac97->private_data; in snd_vt1724_ac97_read()
[all …]
H A Dice1712.c1 // SPDX-License-Identifier: GPL-2.0-or-later
10 - spdif nonaudio consumer mode does not work (at least with my
11 Sony STR-DB830)
18 * split the code to several files. each low-level routine
25 * I also haven't done anything with the internal S/PDIF transmitter or the MPU-401
40 #include <linux/dma-mapping.h>
64 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */
69 static int cs8427_timeout[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 500}; /* CS8427 S/PDIF transcei…
79 MODULE_PARM_DESC(omni, "Enable Midiman M-Audio Delta Omni I/O support.");
106 /* check whether the clock mode is spdif-in */
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H A Ddelta.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Lowlevel functions for M-Audio Delta 1010, 1010E, 44, 66, 66E, Dio2496,
37 for (idx = 7; idx >= 0; idx--) { in ap_cs8427_write_byte()
55 for (idx = 7; idx >= 0; idx--) { in ap_cs8427_read_byte()
73 switch (ice->eeprom.subvendor) { in ap_cs8427_codec_select()
102 switch (ice->eeprom.subvendor) { in ap_cs8427_codec_deassert()
125 struct snd_ice1712 *ice = device->bus->private_data; in ap_cs8427_sendbytes()
129 mutex_lock(&ice->gpio_mutex); in ap_cs8427_sendbytes()
131 ap_cs8427_write_byte(ice, (device->addr << 1) | 0, tmp); /* address + write mode */ in ap_cs8427_sendbytes()
132 while (count-- > 0) in ap_cs8427_sendbytes()
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/linux/drivers/media/pci/saa7164/
H A Dsaa7164-cards.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com>
17 * and keep the -i2c.c implementation clean.
27 .name = "Unknown",
32 .name = "Generic Rev2",
38 .name = "Generic Rev3",
42 .name = "Hauppauge WinTV-HVR2200",
53 .name = "4K EEPROM",
60 .name = "TDA18271-1",
67 .name = "TDA18271-2",
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/linux/drivers/net/wireless/mediatek/mt76/
H A Deeprom.c1 // SPDX-License-Identifier: ISC
3 * Copyright (C) 2016 Felix Fietkau <nbd@nbd.name>
9 #include <linux/nvmem-consumer.h>
15 struct device_node *np = dev->dev->of_node; in mt76_get_of_eeprom_data()
19 data = of_get_property(np, "mediatek,eeprom-data", &size); in mt76_get_of_eeprom_data()
21 return -ENOENT; in mt76_get_of_eeprom_data()
24 return -EINVAL; in mt76_get_of_eeprom_data()
34 struct device_node *np = dev->dev->of_node; in mt76_get_of_data_from_mtd()
43 list = of_get_property(np, "mediatek,mtd-eeprom", &size); in mt76_get_of_data_from_mtd()
45 return -ENOENT; in mt76_get_of_data_from_mtd()
[all …]
/linux/drivers/misc/eeprom/
H A Dmax6875.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * max6875.c - driver for MAX6874/MAX6875
7 * Based on eeprom.c
9 * The MAX6875 has a bank of registers and two banks of EEPROM.
11 * * 0x0000 - 0x0046 = configuration registers
12 * * 0x8000 - 0x8046 = configuration EEPROM
13 * * 0x8100 - 0x82FF = user EEPROM
15 * This driver makes the user EEPROM available for read.
17 * The registers & config EEPROM should be accessed via i2c-dev.
20 * two addresses - 0x50/0x51 and 0x52/0x53.
[all …]
H A Didt_89hpesx.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2016 T-Platforms. All Rights Reserved.
5 * IDT PCIe-switch NTB Linux driver
8 * Serge Semin <fancer.lancer@gmail.com>, <Sergey.Semin@t-platforms.ru>
11 * NOTE of the IDT 89HPESx SMBus-slave interface driver
12 * This driver primarily is developed to have an access to EEPROM device of
13 * IDT PCIe-switches. IDT provides a simple SMBus interface to perform IO-
14 * operations from/to EEPROM, which is located at private (so called Master)
16 * binary sysfs-file in the device directory:
17 * /sys/bus/i2c/devices/<bus>-<devaddr>/eeprom
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/linux/drivers/net/wireless/ralink/rt2x00/
H A Drt2800pci.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
79 static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom) in rt2800pci_eepromregister_read() argument
81 struct rt2x00_dev *rt2x00dev = eeprom->data; in rt2800pci_eepromregister_read()
86 eeprom->reg_data_in = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_IN); in rt2800pci_eepromregister_read()
87 eeprom->reg_data_out = !!rt2x00_get_field32(reg, E2PROM_CSR_DATA_OUT); in rt2800pci_eepromregister_read()
88 eeprom->reg_data_clock = in rt2800pci_eepromregister_read()
90 eeprom->reg_chip_select = in rt2800pci_eepromregister_read()
94 static void rt2800pci_eepromregister_write(struct eeprom_93cx6 *eeprom) in rt2800pci_eepromregister_write() argument
96 struct rt2x00_dev *rt2x00dev = eeprom->data; in rt2800pci_eepromregister_write()
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H A Drt2x00soc.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
4 Copyright (C) 2004 - 2009 Felix Fietkau <nbd@openwrt.org>
25 kfree(rt2x00dev->rf); in rt2x00soc_free_reg()
26 rt2x00dev->rf = NULL; in rt2x00soc_free_reg()
28 kfree(rt2x00dev->eeprom); in rt2x00soc_free_reg()
29 rt2x00dev->eeprom = NULL; in rt2x00soc_free_reg()
31 iounmap(rt2x00dev->csr.base); in rt2x00soc_free_reg()
36 struct platform_device *pdev = to_platform_device(rt2x00dev->dev); in rt2x00soc_alloc_reg()
41 return -ENODEV; in rt2x00soc_alloc_reg()
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/linux/drivers/mtd/maps/
H A Dpismo.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * PISMO memory driver - http://www.pismoworld.org/
15 #include <linux/mtd/plat-ram.h>
52 struct i2c_client *client = to_i2c_client(pdev->dev.parent); in pismo_set_vpp()
55 pismo->vpp(pismo->vpp_data, on); in pismo_set_vpp()
72 .addr = client->addr, in pismo_eeprom_read()
76 .addr = client->addr, in pismo_eeprom_read()
83 ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); in pismo_eeprom_read()
85 return ret == ARRAY_SIZE(msg) ? size : -EIO; in pismo_eeprom_read()
89 struct pismo_mem *region, const char *name, in pismo_add_device() argument
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx51-zii-rdu1.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
8 #include <dt-bindings/sound/fsl-imx-audmux.h>
12 compatible = "zii,imx51-rdu1", "fsl,imx51";
15 stdout-path = &uart1;
25 mdio-gpio0 = &mdio_gpio;
30 compatible = "fixed-clock";
31 #clock-cells = <0>;
32 clock-frequency = <26000000>;
36 compatible = "gpio-gate-clock";
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/linux/Documentation/networking/devlink/
H A Diosm.rst1 .. SPDX-License-Identifier: GPL-2.0
13 The ``iosm`` driver implements the following driver-specific parameters.
15 .. list-table:: Driver-specific parameters implemented
18 * - Name
19 - Type
20 - Mode
21 - Description
22 * - ``erase_full_flash``
23 - u8
24 - runtime
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mq-zii-ultra.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
10 mdio-gpio0 = &mdio0;
15 stdout-path = &uart1;
19 compatible = "virtual,mdio-gpio";
20 pinctrl-names = "default";
21 pinctrl-0 = <&pinctrl_mdio_bitbang>, <&pinctrl_fec1_phy_reset>;
24 #address-cells = <1>;
25 #size-cells = <0>;
27 phy0: ethernet-phy@0 {
29 reset-gpios = <&gpio1 29 GPIO_ACTIVE_LOW>;
[all …]
/linux/drivers/media/usb/au0828/
H A Dau0828-cards.c1 // SPDX-License-Identifier: GPL-2.0-or-later
9 #include "au0828-cards.h"
12 #include "media/v4l2-common.h"
16 /* Because the HVR-950q shares an i2s bus between the cs5340 and the in hvr950q_cs5340_audio()
26 * WARNING: There's a quirks table at sound/usb/quirks-table.h
32 .name = "Unknown board",
33 .tuner_type = -1U,
37 .name = "Hauppauge HVR850",
64 .name = "Hauppauge HVR950Q",
91 .name = "Hauppauge HVR950Q rev xxF8",
[all …]
/linux/Documentation/i2c/
H A Dslave-eeprom-backend.rst2 Linux I2C slave EEPROM backend
5 by Wolfram Sang <wsa@sang-engineering.com> in 2014-20
7 This backend simulates an EEPROM on the connected I2C bus. Its memory contents
10 /sys/bus/i2c/devices/<device-directory>/slave-eeprom
12 The following types are available: 24c02, 24c32, 24c64, and 24c512. Read-only
13 variants are also supported. The name needed for instantiating has the form
14 'slave-<type>[ro]'. Examples follow:
17 # echo slave-24c02 0x1064 > /sys/bus/i2c/devices/i2c-1/new_device
19 24c512, read-only, address 0x42:
20 # echo slave-24c512ro 0x1042 > /sys/bus/i2c/devices/i2c-1/new_device
[all …]
/linux/drivers/net/can/sja1000/
H A Dpeak_pcmcia.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2010-2012 Stephane Grosjean <s.grosjean@peak-system.com>
5 * CAN driver for PEAK-System PCAN-PC Card
7 * Copyright (C) 2006-2010 PEAK System-Technik GmbH
22 MODULE_AUTHOR("Stephane Grosjean <s.grosjean@peak-system.com>");
23 MODULE_DESCRIPTION("CAN driver for PEAK-System PCAN-PC Cards");
26 /* PEAK-System PCMCIA driver name */
99 /* EEPROM chip instruction set */
100 /* note: EEPROM Read/Write instructions include A8 bit */
103 #define PCC_EEP_WRDI 0x04 /* EEPROM Write Disable */
[all …]
/linux/arch/arm/boot/dts/nxp/vf/
H A Dvf610-zii-spb4.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 * SPB - Seat Power Box
11 /dts-v1/;
19 stdout-path = &uart0;
27 gpio-leds {
28 compatible = "gpio-leds";
29 pinctrl-0 = <&pinctrl_leds_debug>;
30 pinctrl-names = "default";
32 led-debug {
35 linux,default-trigger = "heartbeat";
[all …]
H A Dvf610-zii-ssmb-spu3.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 * SSMB - SPU3 Switch Management Board
7 * SPU - Seat Power Unit
11 * Based on an original 'vf610-twr.dts' which is Copyright 2015,
15 /dts-v1/;
23 stdout-path = &uart0;
31 gpio-leds {
32 compatible = "gpio-leds";
33 pinctrl-0 = <&pinctrl_leds_debug>;
34 pinctrl-names = "default";
[all …]
/linux/drivers/net/wireless/mediatek/mt76/mt7615/
H A Deeprom.c1 // SPDX-License-Identifier: ISC
5 * Felix Fietkau <nbd@nbd.name>
10 #include "eeprom.h"
25 return -ETIMEDOUT; in mt7615_efuse_read()
50 if (is_mt7663(&dev->mt76)) in mt7615_efuse_init()
57 dev->mt76.otp.data = devm_kzalloc(dev->mt76.dev, len, GFP_KERNEL); in mt7615_efuse_init()
58 dev->mt76.otp.size = len; in mt7615_efuse_init()
59 if (!dev->mt76.otp.data) in mt7615_efuse_init()
60 return -ENOMEM; in mt7615_efuse_init()
62 buf = dev->mt76.otp.data; in mt7615_efuse_init()
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