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/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dazoteq,iqs7211.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
14 lers employ projected-capacitance sensing and can track two contacts.
21 - azoteq,iqs7210a
22 - azoteq,iqs7211a
23 - azoteq,iqs7211e
28 irq-gpios:
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/linux/drivers/input/touchscreen/
H A Dhynitron_cstxxx.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * are undocumented. This is essentially a cleaned-up version of the
11 * device-specific functions replated with generic functions wherever
37 /* Data generic to all (supported and non-supported) controllers. */
76 gpiod_set_value_cansleep(ts_data->reset_gpio, 1); in hyn_reset_proc()
78 gpiod_set_value_cansleep(ts_data->reset_gpio, 0); in hyn_reset_proc()
88 ts_data->chip->report_touch(client); in hyn_interrupt_handler()
114 return ret < 0 ? ret : -EIO; in cst3xx_i2c_write()
123 .addr = client->addr, in cst3xx_i2c_read_register()
129 .addr = client->addr, in cst3xx_i2c_read_register()
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H A Dchipone_icn8505.c1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (c) 2015-2018 Red Hat Inc.
96 buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff; in icn8505_read_xfer()
98 ret = i2c_transfer(client->adapter, msg, 2); in icn8505_read_xfer()
101 ret = -EIO; in icn8505_read_xfer()
103 dev_err(&client->dev, in icn8505_read_xfer()
116 u8 buf[3 + 32]; /* 3 bytes for 24 bit reg-addr + 32 bytes max len */ in icn8505_write_xfer()
125 return -EINVAL; in icn8505_write_xfer()
128 buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff; in icn8505_write_xfer()
132 ret = i2c_transfer(client->adapter, &msg, 1); in icn8505_write_xfer()
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H A Dhideep.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2012-2017 Hideep, Inc.
28 /* count(2) + touch data(100) + key data(6) */
34 /* Touch & key event */
164 * states). We align it on double-word boundary to keep word-sized
165 * fields in contact data and double-word-sized fields in program
182 struct pgm_packet *packet = (void *)ts->xfer_buf; in hideep_pgm_w_mem()
185 .addr = ts->client->addr, in hideep_pgm_w_mem()
186 .len = len + sizeof(packet->header.len) + in hideep_pgm_w_mem()
187 sizeof(packet->header.addr), in hideep_pgm_w_mem()
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H A Delants_i2c.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Elan Microelectronics touch panels with I2C interface
8 * This code is partly based on hid-multitouch.c:
10 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
11 * Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
12 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
14 * This code is partly based on i2c-hid.c:
49 #define ELAN_TS_RESOLUTION(n, m) (((n) - 1) * (m))
89 /* Header (4 bytes) plus 3 full 10-finger packets */
150 /* struct elants_data - represents state of Elan touchscreen device */
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/linux/arch/arm/mach-lpc32xx/
H A Dpm.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * arch/arm/mach-lpc32xx/pm.c
15 * direct-run, and halt modes. When switching between halt and run modes,
16 * the CPU transistions through direct-run mode. For Linux, direct-run
25 * Direct-run mode:
33 * Peripherals based on the 32KHz oscillator clock (ie, RTC, touch,
36 * wake the system up back into direct-run mode.
41 * SDRAM will still be accessible in direct-run mode. In DDR based systems,
42 * a transition to direct-run mode will stop all DDR accesses (no clocks).
43 * Because of this, the code to switch power modes and the code to enter
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/linux/Documentation/devicetree/bindings/input/
H A Diqs626a.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS626A Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS626A is a 14-channel capacitive touch controller that features
14 additional Hall-effect and inductive sensing capabilities.
19 - $ref: touchscreen/touchscreen.yaml#
31 "#address-cells":
34 "#size-cells":
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H A Dazoteq,iqs7222.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS7222A/B/C/D Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
14 capacitive touch controllers that feature additional sensing capabilities.
21 - azoteq,iqs7222a
22 - azoteq,iqs7222b
23 - azoteq,iqs7222c
24 - azoteq,iqs7222d
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H A Diqs269a.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS269A Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
13 - $ref: input.yaml#
16 The Azoteq IQS269A is an 8-channel capacitive touch controller that features
17 additional Hall-effect and inductive sensing capabilities.
24 - azoteq,iqs269a
25 - azoteq,iqs269a-00
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/linux/arch/arm64/boot/dts/freescale/
H A Dimx8mn-dimonoff-gateway-evk.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 /dts-v1/;
8 #include <dt-bindings/usb/pd.h>
9 #include "imx8mn-var-som-symphony.dts"
13 compatible = "dimonoff,gateway-evk", "variscite,var-som-mx8mn",
20 reg_disp_3v3: regulator-disp-3v3 {
21 compatible = "regulator-fixed";
22 regulator-name = "Display 3V3";
23 regulator-min-microvolt = <3300000>;
24 regulator-max-microvolt = <3300000>;
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/linux/arch/arm/boot/dts/nxp/imx/
H A Dimx6dl-victgo.dts1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 /dts-v1/;
9 #include "imx6qdl-vicut1.dtsi"
15 gpio-keys {
16 compatible = "gpio-keys";
17 pinctrl-names = "default";
18 pinctrl-0 = <&pinctrl_gpiokeys>;
21 key-power {
25 wakeup-source;
28 key-enter {
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/linux/include/linux/
H A Drmi.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (c) 2011-2016 Synaptics Incorporated
21 * struct rmi_2d_axis_alignment - target axis alignment
22 * @swap_axes: set to TRUE if desired to swap x- and y-axis
23 * @flip_x: set to TRUE if desired to flip direction on x-axis
24 * @flip_y: set to TRUE if desired to flip direction on y-axis
25 * @clip_x_low - reported X coordinates below this setting will be clipped to
27 * @clip_x_high - reported X coordinates above this setting will be clipped to
29 * @clip_y_low - reported Y coordinates below this setting will be clipped to
31 * @clip_y_high - reported Y coordinates above this setting will be clipped to
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H A Dhil.h5 * Hewlett Packard Human Interface Loop (HP-HIL) Protocol -- header.
33 * HP-HIL Technical Reference Manual. Hewlett Packard Product No. 45918A
57 * implementing a software MLC to run HIL devices on a non-parisc machine.
109 HIL_ERR_OB = 0x00000800, /* MLC is busy sending an auto-poll,
131 /* This gives us a 32-bit "packet"
140 HIL_CMD_EPT = 0x01, /* Enter Pass-Thru Mode */
141 HIL_CMD_ELB = 0x02, /* Enter Loop-Back Mode */
181 /* 0x80 to 0xEF device-specific commands */
211 #define HIL_IDD_DID_ABS_TSCREEN_MASK 0xfc /* Touch screens */
254 #define HIL_IDD_HEADER_2X_AXIS 0x80 /* Two sets of 1-3 axis */
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/linux/drivers/input/mouse/
H A Dcyapa_gen3.c9 * Copyright (C) 2011-2015 Cypress Semiconductor, Inc.
10 * Copyright (C) 2011-2012 Google, Inc.
60 * Used in register 0x00, bit1-0, DeviceStatus field.
88 * bit 7 - 4: high 4 bits of x position value
89 * bit 3 - 0: high 4 bits of y position value
95 /* id range is 1 - 15. It is incremented with every new touch. */
101 * bit 0 - 1: device status
102 * bit 3 - 2: power mode
103 * bit 6 - 4: reserved
108 * bit 7 - 4: number of fingers currently touching pad
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H A Dcyapa_gen5.c6 * Copyright (C) 2014-2015 Cypress Semiconductor, Inc.
21 #include <linux/crc-itu-t.h>
33 #define CYAPA_TSG_IMG_MAX_RECORDS (CYAPA_TSG_IMG_END_ROW_NUM - \
141 * Bit 7 - 3: reserved
142 * Bit 2 - 0: touch type;
146 * 3 - 15 : reserved.
151 * Bit 7: indicates touch liftoff status.
152 * 0 : touch is currently on the panel.
153 * 1 : touch record indicates a liftoff.
154 * Bit 6 - 5: indicates an event associated with this touch instance
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H A Dalps.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
94 #define ALPS_PASS 0x04 /* device has a pass-through port */
100 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
101 6-byte ALPS packet */
117 { { 0x33, 0x02, 0x0a }, { ALPS_PROTO_V1, 0x88, 0xf8, 0 } }, /* UMAX-530T */
119 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED } }, /* Toshiba Tecra A11-11L */
128 …{ { 0x63, 0x02, 0x3c }, { ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL } }, /* Toshiba Satellite S2400-…
132 …{ { 0x73, 0x00, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT } }, /* ThinkPad R61 8918-5QG…
180 /* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */
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/linux/drivers/gpu/drm/panel/
H A Dpanel-sony-td4353-jdi.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Generated with linux-mdss-dsi-panel-driver-generator with a
9 * - "JDI ID3" for Akari (XZ2)
10 * - "JDI ID4" for Apollo (XZ2 Compact)
28 * Leaving room for expansion - SONY very often uses
49 struct mipi_dsi_device *dsi = ctx->dsi; in sony_td4353_jdi_on()
50 struct device *dev = &dsi->dev; in sony_td4353_jdi_on()
53 dsi->mode_flags |= MIPI_DSI_MODE_LPM; in sony_td4353_jdi_on()
55 ret = mipi_dsi_dcs_set_column_address(dsi, 0x0000, 1080 - 1); in sony_td4353_jdi_on()
61 ret = mipi_dsi_dcs_set_page_address(dsi, 0x0000, 2160 - 1); in sony_td4353_jdi_on()
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H A Dpanel-raydium-rm67191.c1 // SPDX-License-Identifier: GPL-2.0
3 * Raydium RM67191 MIPI-DSI panel driver
11 #include <linux/media-bus-format.h>
24 /* Panel specific color-format bits */
239 u8 buffer[2] = { entry->cmd, entry->param }; in rad_panel_push_cmd_list()
269 ret = regulator_bulk_enable(rad->num_supplies, rad->supplies); in rad_panel_prepare()
273 if (rad->reset) { in rad_panel_prepare()
274 gpiod_set_value_cansleep(rad->reset, 1); in rad_panel_prepare()
276 gpiod_set_value_cansleep(rad->reset, 0); in rad_panel_prepare()
280 rad->prepared = true; in rad_panel_prepare()
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/linux/arch/arm/boot/dts/st/
H A Dstm32mp157c-phycore-stm32mp15-som.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
3 * Copyright (C) 2022-2023 Steffen Trumtrar <kernel@pengutronix.de>
4 * Copyright (C) Phytec GmbH 2019-2020 - All Rights Reserved
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/input/input.h>
10 #include <dt-bindings/interrupt-controller/arm-gic.h>
11 #include <dt-bindings/interrupt-controller/irq.h>
12 #include <dt-bindings/leds/common.h>
13 #include <dt-bindings/leds/leds-pca9532.h>
14 #include <dt-bindings/mfd/st,stpmic1.h>
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/linux/Documentation/input/devices/
H A Dalps.rst1 ----------------------
3 ----------------------
6 ------------
10 Since roughly mid-2010 several new ALPS touchpads have been released and
14 adequate. The design choices were to re-define the alps_model_data
29 ---------
32 E8-E6-E6-E6-E9. An ALPS touchpad should respond with either 00-00-0A or
33 00-00-64 if no buttons are pressed. The bits 0-2 of the first byte will be 1s
37 report" sequence: E8-E7-E7-E7-E9. The response is the model signature and is
41 model signature is always 73-02-64. To differentiate between these
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/linux/tools/testing/selftests/hid/tests/
H A Dbase.py2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
106 "Touch Pad": EvdevMatch(
120 "Touch Screen": EvdevMatch(
159 # for example ("playstation", "hid-playstation")
162 # List of in kernel HID-BPF object files to load
164 # Any existing pre-loaded HID-BPF module will be removed
167 # for example '("xppen-ArtistPro16Gen2.bpf.o", True)'
225 sysfs_path = Path("/sys/module") / kernel_module.replace("-", "_")
244 udev_hid_bpf = shutil.which("udev-hid-bpf")
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/linux/arch/loongarch/kvm/
H A Dswitch.S1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2020-2023 Loongson Technology Corporation Limited
46 * a2: kvm_vcpu_arch, don't touch it until 'ertn'
68 ld.d t1, a2, KVM_VCPU_KVM - KVM_VCPU_ARCH
104 * - IRQ is disabled
105 * - kernel privilege in root mode
106 * - page mode keep unchanged from previous PRMD in root mode
107 * - Fixme: tlb exception cannot happen since registers relative with TLB
108 * - is still in guest mode, such as pgd table/vmid registers etc,
109 * - will fix with hw page walk enabled in future
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/linux/drivers/usb/usbip/
H A Dstub_dev.c1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2003-2008 Takahiro Hirofuchi
15 * usbip_status shows the status of usbip-host as long as this driver is bound
26 return -ENODEV; in usbip_status_show()
29 spin_lock_irq(&sdev->ud.lock); in usbip_status_show()
30 status = sdev->ud.status; in usbip_status_show()
31 spin_unlock_irq(&sdev->ud.lock); in usbip_status_show()
39 * is used to transfer usbip requests by kernel threads. -1 is a magic number
54 return -ENODEV; in usbip_sockfd_store()
59 return -EINVAL; in usbip_sockfd_store()
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/linux/arch/arm64/kvm/hyp/nvhe/
H A Dhost.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2020 - Google Inc
23 /* Retrieve the host regs x0-x1 from the stack */
26 /* Store the host regs x0-x1 and x4-x17 */
36 /* Store the host regs x18-x29, lr */
77 /* Restore host regs x0-x17 */
83 /* x0-7 are use for panic arguments */
91 /* Restore host regs x18-x29, lr */
94 /* Do not touch any register after this! */
124 /* Ensure host stage-2 is disabled */
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/linux/drivers/input/misc/
H A Dad714x.c1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright 2009-2011 Analog Devices Inc.
132 mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); in ad714x_use_com_int()
134 ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1); in ad714x_use_com_int()
136 ad714x->write(ad714x, STG_COM_INT_EN_REG, data); in ad714x_use_com_int()
138 ad714x->read(ad714x, STG_HIGH_INT_EN_REG, &data, 1); in ad714x_use_com_int()
140 ad714x->write(ad714x, STG_HIGH_INT_EN_REG, data); in ad714x_use_com_int()
149 mask = ((1 << (end_stage + 1)) - 1) - ((1 << start_stage) - 1); in ad714x_use_thr_int()
151 ad714x->read(ad714x, STG_COM_INT_EN_REG, &data, 1); in ad714x_use_thr_int()
153 ad714x->write(ad714x, STG_COM_INT_EN_REG, data); in ad714x_use_thr_int()
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