772cbba5a8
The Peaq C1010 tablet has a special "Dolby" button. This button has a WMI interface, but this is broken in several ways: 1. It only supports polling 2. The value read on polling goes from 0 -> 1 for one poll on both edges of the button, with no way to tell which edge causes the poll to return 1. 3. It uses a non unique GUID (it uses the Microsoft docs WMI example GUID). There currently is a WMI driver for this, but it uses several kludges to work around these issues and is not entirely reliable due to 2. Replace the unreliable WMI driver by using the x86-android-tablets code to instantiate a gpio_keys device for this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20230301092331.7038-11-hdegoede@redhat.com
523 lines
14 KiB
C
523 lines
14 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* DMI based code to deal with broken DSDTs on X86 tablets which ship with
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* Android as (part of) the factory image. The factory kernels shipped on these
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* devices typically have a bunch of things hardcoded, rather than specified
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* in their DSDT.
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*
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* Copyright (C) 2021-2023 Hans de Goede <hdegoede@redhat.com>
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*/
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#include <linux/acpi.h>
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#include <linux/gpio/machine.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include "shared-psy-info.h"
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#include "x86-android-tablets.h"
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/* Acer Iconia One 7 B1-750 has an Android factory img with everything hardcoded */
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static const char * const acer_b1_750_mount_matrix[] = {
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"-1", "0", "0",
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"0", "1", "0",
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"0", "0", "1"
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};
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static const struct property_entry acer_b1_750_bma250e_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", acer_b1_750_mount_matrix),
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{ }
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};
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static const struct software_node acer_b1_750_bma250e_node = {
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.properties = acer_b1_750_bma250e_props,
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};
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static const struct x86_i2c_client_info acer_b1_750_i2c_clients[] __initconst = {
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{
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/* Novatek NVT-ts touchscreen */
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.board_info = {
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.type = "NVT-ts",
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.addr = 0x34,
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.dev_name = "NVT-ts",
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},
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.adapter_path = "\\_SB_.I2C4",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 3,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_LOW,
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},
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}, {
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/* BMA250E accelerometer */
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.board_info = {
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.type = "bma250e",
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.addr = 0x18,
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.swnode = &acer_b1_750_bma250e_node,
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},
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.adapter_path = "\\_SB_.I2C3",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 25,
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.trigger = ACPI_LEVEL_SENSITIVE,
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.polarity = ACPI_ACTIVE_HIGH,
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},
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},
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};
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static struct gpiod_lookup_table acer_b1_750_goodix_gpios = {
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.dev_id = "i2c-NVT-ts",
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.table = {
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GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_LOW),
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{ }
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},
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};
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static struct gpiod_lookup_table * const acer_b1_750_gpios[] = {
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&acer_b1_750_goodix_gpios,
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&int3496_reference_gpios,
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NULL
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};
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const struct x86_dev_info acer_b1_750_info __initconst = {
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.i2c_client_info = acer_b1_750_i2c_clients,
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.i2c_client_count = ARRAY_SIZE(acer_b1_750_i2c_clients),
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.pdev_info = int3496_pdevs,
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.pdev_count = 1,
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.gpiod_lookup_tables = acer_b1_750_gpios,
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};
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/*
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* Advantech MICA-071
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* This is a standard Windows tablet, but it has an extra "quick launch" button
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* which is not described in the ACPI tables in anyway.
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* Use the x86-android-tablets infra to create a gpio-button device for this.
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*/
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static struct x86_gpio_button advantech_mica_071_button = {
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.button = {
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.code = KEY_PROG1,
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.active_low = true,
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.desc = "prog1_key",
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.type = EV_KEY,
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.wakeup = false,
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.debounce_interval = 50,
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},
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.chip = "INT33FC:00",
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.pin = 2,
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};
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const struct x86_dev_info advantech_mica_071_info __initconst = {
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.gpio_button = &advantech_mica_071_button,
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};
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/*
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* When booted with the BIOS set to Android mode the Chuwi Hi8 (CWI509) DSDT
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* contains a whole bunch of bogus ACPI I2C devices and is missing entries
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* for the touchscreen and the accelerometer.
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*/
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static const struct property_entry chuwi_hi8_gsl1680_props[] = {
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PROPERTY_ENTRY_U32("touchscreen-size-x", 1665),
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PROPERTY_ENTRY_U32("touchscreen-size-y", 1140),
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PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
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PROPERTY_ENTRY_BOOL("silead,home-button"),
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PROPERTY_ENTRY_STRING("firmware-name", "gsl1680-chuwi-hi8.fw"),
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{ }
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};
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static const struct software_node chuwi_hi8_gsl1680_node = {
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.properties = chuwi_hi8_gsl1680_props,
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};
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static const char * const chuwi_hi8_mount_matrix[] = {
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"1", "0", "0",
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"0", "-1", "0",
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"0", "0", "1"
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};
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static const struct property_entry chuwi_hi8_bma250e_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", chuwi_hi8_mount_matrix),
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{ }
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};
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static const struct software_node chuwi_hi8_bma250e_node = {
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.properties = chuwi_hi8_bma250e_props,
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};
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static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = {
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{
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/* Silead touchscreen */
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.board_info = {
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.type = "gsl1680",
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.addr = 0x40,
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.swnode = &chuwi_hi8_gsl1680_node,
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},
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.adapter_path = "\\_SB_.I2C4",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_APIC,
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.index = 0x44,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_HIGH,
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},
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}, {
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/* BMA250E accelerometer */
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.board_info = {
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.type = "bma250e",
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.addr = 0x18,
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.swnode = &chuwi_hi8_bma250e_node,
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},
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.adapter_path = "\\_SB_.I2C3",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 23,
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.trigger = ACPI_LEVEL_SENSITIVE,
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.polarity = ACPI_ACTIVE_HIGH,
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},
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},
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};
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static int __init chuwi_hi8_init(void)
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{
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/*
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* Avoid the acpi_unregister_gsi() call in x86_acpi_irq_helper_get()
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* breaking the touchscreen + logging various errors when the Windows
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* BIOS is used.
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*/
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if (acpi_dev_present("MSSL0001", NULL, 1))
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return -ENODEV;
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return 0;
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}
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const struct x86_dev_info chuwi_hi8_info __initconst = {
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.i2c_client_info = chuwi_hi8_i2c_clients,
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.i2c_client_count = ARRAY_SIZE(chuwi_hi8_i2c_clients),
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.init = chuwi_hi8_init,
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};
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#define CZC_EC_EXTRA_PORT 0x68
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#define CZC_EC_ANDROID_KEYS 0x63
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static int __init czc_p10t_init(void)
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{
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/*
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* The device boots up in "Windows 7" mode, when the home button sends a
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* Windows specific key sequence (Left Meta + D) and the second button
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* sends an unknown one while also toggling the Radio Kill Switch.
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* This is a surprising behavior when the second button is labeled "Back".
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*
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* The vendor-supplied Android-x86 build switches the device to a "Android"
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* mode by writing value 0x63 to the I/O port 0x68. This just seems to just
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* set bit 6 on address 0x96 in the EC region; switching the bit directly
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* seems to achieve the same result. It uses a "p10t_switcher" to do the
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* job. It doesn't seem to be able to do anything else, and no other use
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* of the port 0x68 is known.
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*
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* In the Android mode, the home button sends just a single scancode,
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* which can be handled in Linux userspace more reasonably and the back
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* button only sends a scancode without toggling the kill switch.
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* The scancode can then be mapped either to Back or RF Kill functionality
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* in userspace, depending on how the button is labeled on that particular
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* model.
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*/
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outb(CZC_EC_ANDROID_KEYS, CZC_EC_EXTRA_PORT);
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return 0;
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}
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const struct x86_dev_info czc_p10t __initconst = {
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.init = czc_p10t_init,
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};
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/* Medion Lifetab S10346 tablets have an Android factory img with everything hardcoded */
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static const char * const medion_lifetab_s10346_accel_mount_matrix[] = {
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"0", "1", "0",
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"1", "0", "0",
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"0", "0", "1"
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};
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static const struct property_entry medion_lifetab_s10346_accel_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", medion_lifetab_s10346_accel_mount_matrix),
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{ }
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};
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static const struct software_node medion_lifetab_s10346_accel_node = {
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.properties = medion_lifetab_s10346_accel_props,
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};
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/* Note the LCD panel is mounted upside down, this is correctly indicated in the VBT */
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static const struct property_entry medion_lifetab_s10346_touchscreen_props[] = {
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PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
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PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
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{ }
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};
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static const struct software_node medion_lifetab_s10346_touchscreen_node = {
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.properties = medion_lifetab_s10346_touchscreen_props,
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};
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static const struct x86_i2c_client_info medion_lifetab_s10346_i2c_clients[] __initconst = {
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{
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/* kxtj21009 accel */
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.board_info = {
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.type = "kxtj21009",
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.addr = 0x0f,
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.dev_name = "kxtj21009",
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.swnode = &medion_lifetab_s10346_accel_node,
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},
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.adapter_path = "\\_SB_.I2C3",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 23,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_HIGH,
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},
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}, {
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/* goodix touchscreen */
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.board_info = {
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.type = "GDIX1001:00",
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.addr = 0x14,
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.dev_name = "goodix_ts",
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.swnode = &medion_lifetab_s10346_touchscreen_node,
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},
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.adapter_path = "\\_SB_.I2C4",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_APIC,
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.index = 0x44,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_LOW,
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},
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},
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};
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static struct gpiod_lookup_table medion_lifetab_s10346_goodix_gpios = {
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.dev_id = "i2c-goodix_ts",
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.table = {
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GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
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GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
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{ }
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},
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};
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static struct gpiod_lookup_table * const medion_lifetab_s10346_gpios[] = {
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&medion_lifetab_s10346_goodix_gpios,
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NULL
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};
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const struct x86_dev_info medion_lifetab_s10346_info __initconst = {
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.i2c_client_info = medion_lifetab_s10346_i2c_clients,
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.i2c_client_count = ARRAY_SIZE(medion_lifetab_s10346_i2c_clients),
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.gpiod_lookup_tables = medion_lifetab_s10346_gpios,
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};
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/* Nextbook Ares 8 tablets have an Android factory img with everything hardcoded */
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static const char * const nextbook_ares8_accel_mount_matrix[] = {
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"0", "-1", "0",
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"-1", "0", "0",
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"0", "0", "1"
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};
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static const struct property_entry nextbook_ares8_accel_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", nextbook_ares8_accel_mount_matrix),
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{ }
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};
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static const struct software_node nextbook_ares8_accel_node = {
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.properties = nextbook_ares8_accel_props,
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};
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static const struct property_entry nextbook_ares8_touchscreen_props[] = {
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PROPERTY_ENTRY_U32("touchscreen-size-x", 800),
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PROPERTY_ENTRY_U32("touchscreen-size-y", 1280),
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{ }
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};
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static const struct software_node nextbook_ares8_touchscreen_node = {
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.properties = nextbook_ares8_touchscreen_props,
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};
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static const struct x86_i2c_client_info nextbook_ares8_i2c_clients[] __initconst = {
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{
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/* Freescale MMA8653FC accel */
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.board_info = {
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.type = "mma8653",
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.addr = 0x1d,
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.dev_name = "mma8653",
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.swnode = &nextbook_ares8_accel_node,
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},
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.adapter_path = "\\_SB_.I2C3",
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}, {
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/* FT5416DQ9 touchscreen controller */
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.board_info = {
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.type = "edt-ft5x06",
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.addr = 0x38,
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.dev_name = "ft5416",
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.swnode = &nextbook_ares8_touchscreen_node,
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},
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.adapter_path = "\\_SB_.I2C4",
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.irq_data = {
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.type = X86_ACPI_IRQ_TYPE_GPIOINT,
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.chip = "INT33FC:02",
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.index = 3,
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.trigger = ACPI_EDGE_SENSITIVE,
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.polarity = ACPI_ACTIVE_LOW,
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},
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},
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};
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static struct gpiod_lookup_table * const nextbook_ares8_gpios[] = {
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&int3496_reference_gpios,
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NULL
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};
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const struct x86_dev_info nextbook_ares8_info __initconst = {
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.i2c_client_info = nextbook_ares8_i2c_clients,
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.i2c_client_count = ARRAY_SIZE(nextbook_ares8_i2c_clients),
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.pdev_info = int3496_pdevs,
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.pdev_count = 1,
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.gpiod_lookup_tables = nextbook_ares8_gpios,
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.invalid_aei_gpiochip = "INT33FC:02",
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};
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/*
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* Peaq C1010
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* This is a standard Windows tablet, but it has a special Dolby button.
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* This button has a WMI interface, but that is broken. Instead of trying to
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* use the broken WMI interface, instantiate a gpio_keys device for this.
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*/
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static struct x86_gpio_button peaq_c1010_button = {
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.button = {
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.code = KEY_SOUND,
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.active_low = true,
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.desc = "dolby_key",
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.type = EV_KEY,
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.wakeup = false,
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.debounce_interval = 50,
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},
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.chip = "INT33FC:00",
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.pin = 3,
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};
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const struct x86_dev_info peaq_c1010_info __initconst = {
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.gpio_button = &peaq_c1010_button,
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/*
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* Move the ACPI event handler used by the broken WMI interface out of
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* the way. This is the only event handler on INT33FC:00.
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*/
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.invalid_aei_gpiochip = "INT33FC:00",
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};
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/*
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* Whitelabel (sold as various brands) TM800A550L tablets.
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* These tablet's DSDT contains a whole bunch of bogus ACPI I2C devices
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* (removed through acpi_quirk_skip_i2c_client_enumeration()) and
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* the touchscreen fwnode has the wrong GPIOs.
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*/
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static const char * const whitelabel_tm800a550l_accel_mount_matrix[] = {
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"-1", "0", "0",
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"0", "1", "0",
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"0", "0", "1"
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};
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static const struct property_entry whitelabel_tm800a550l_accel_props[] = {
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PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", whitelabel_tm800a550l_accel_mount_matrix),
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{ }
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};
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static const struct software_node whitelabel_tm800a550l_accel_node = {
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.properties = whitelabel_tm800a550l_accel_props,
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};
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static const struct property_entry whitelabel_tm800a550l_goodix_props[] = {
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PROPERTY_ENTRY_STRING("firmware-name", "gt912-tm800a550l.fw"),
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PROPERTY_ENTRY_STRING("goodix,config-name", "gt912-tm800a550l.cfg"),
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PROPERTY_ENTRY_U32("goodix,main-clk", 54),
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{ }
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};
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static const struct software_node whitelabel_tm800a550l_goodix_node = {
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.properties = whitelabel_tm800a550l_goodix_props,
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};
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static const struct x86_i2c_client_info whitelabel_tm800a550l_i2c_clients[] __initconst = {
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{
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/* goodix touchscreen */
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.board_info = {
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.type = "GDIX1001:00",
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.addr = 0x14,
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.dev_name = "goodix_ts",
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.swnode = &whitelabel_tm800a550l_goodix_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C2",
|
|
.irq_data = {
|
|
.type = X86_ACPI_IRQ_TYPE_APIC,
|
|
.index = 0x44,
|
|
.trigger = ACPI_EDGE_SENSITIVE,
|
|
.polarity = ACPI_ACTIVE_HIGH,
|
|
},
|
|
}, {
|
|
/* kxcj91008 accel */
|
|
.board_info = {
|
|
.type = "kxcj91008",
|
|
.addr = 0x0f,
|
|
.dev_name = "kxcj91008",
|
|
.swnode = &whitelabel_tm800a550l_accel_node,
|
|
},
|
|
.adapter_path = "\\_SB_.I2C3",
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table whitelabel_tm800a550l_goodix_gpios = {
|
|
.dev_id = "i2c-goodix_ts",
|
|
.table = {
|
|
GPIO_LOOKUP("INT33FC:01", 26, "reset", GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP("INT33FC:02", 3, "irq", GPIO_ACTIVE_HIGH),
|
|
{ }
|
|
},
|
|
};
|
|
|
|
static struct gpiod_lookup_table * const whitelabel_tm800a550l_gpios[] = {
|
|
&whitelabel_tm800a550l_goodix_gpios,
|
|
NULL
|
|
};
|
|
|
|
const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
|
|
.i2c_client_info = whitelabel_tm800a550l_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(whitelabel_tm800a550l_i2c_clients),
|
|
.gpiod_lookup_tables = whitelabel_tm800a550l_gpios,
|
|
};
|
|
|
|
/*
|
|
* If the EFI bootloader is not Xiaomi's own signed Android loader, then the
|
|
* Xiaomi Mi Pad 2 X86 tablet sets OSID in the DSDT to 1 (Windows), causing
|
|
* a bunch of devices to be hidden.
|
|
*
|
|
* This takes care of instantiating the hidden devices manually.
|
|
*/
|
|
static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst = {
|
|
{
|
|
/* BQ27520 fuel-gauge */
|
|
.board_info = {
|
|
.type = "bq27520",
|
|
.addr = 0x55,
|
|
.dev_name = "bq27520",
|
|
.swnode = &fg_bq25890_supply_node,
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C1",
|
|
}, {
|
|
/* KTD2026 RGB notification LED controller */
|
|
.board_info = {
|
|
.type = "ktd2026",
|
|
.addr = 0x30,
|
|
.dev_name = "ktd2026",
|
|
},
|
|
.adapter_path = "\\_SB_.PCI0.I2C3",
|
|
},
|
|
};
|
|
|
|
const struct x86_dev_info xiaomi_mipad2_info __initconst = {
|
|
.i2c_client_info = xiaomi_mipad2_i2c_clients,
|
|
.i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
|
|
};
|