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author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-08-31 02:06:38 +0300 |
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committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2023-08-31 02:06:38 +0300 |
commit | 1ac731c529cd4d6adbce134754b51ff7d822b145 (patch) | |
tree | 143ab3f35ca5f3b69f583c84e6964b17139c2ec1 /drivers/platform/x86/peaq-wmi.c | |
parent | 07b4c950f27bef0362dc6ad7ee713aab61d58149 (diff) | |
parent | 54116d442e001e1b6bd482122043b1870998a1f3 (diff) | |
download | linux-1ac731c529cd4d6adbce134754b51ff7d822b145.tar.xz |
Merge branch 'next' into for-linus
Prepare input updates for 6.6 merge window.
Diffstat (limited to 'drivers/platform/x86/peaq-wmi.c')
-rw-r--r-- | drivers/platform/x86/peaq-wmi.c | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/drivers/platform/x86/peaq-wmi.c b/drivers/platform/x86/peaq-wmi.c deleted file mode 100644 index cf9c44c20a82..000000000000 --- a/drivers/platform/x86/peaq-wmi.c +++ /dev/null @@ -1,128 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * PEAQ 2-in-1 WMI hotkey driver - * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com> - */ - -#include <linux/acpi.h> -#include <linux/dmi.h> -#include <linux/input.h> -#include <linux/kernel.h> -#include <linux/module.h> - -#define PEAQ_DOLBY_BUTTON_GUID "ABBC0F6F-8EA1-11D1-00A0-C90629100000" -#define PEAQ_DOLBY_BUTTON_METHOD_ID 5 -#define PEAQ_POLL_INTERVAL_MS 250 -#define PEAQ_POLL_IGNORE_MS 500 -#define PEAQ_POLL_MAX_MS 1000 - -MODULE_ALIAS("wmi:"PEAQ_DOLBY_BUTTON_GUID); - -static struct input_dev *peaq_poll_dev; - -/* - * The Dolby button (yes really a Dolby button) causes an ACPI variable to get - * set on both press and release. The WMI method checks and clears that flag. - * So for a press + release we will get back One from the WMI method either once - * (if polling after the release) or twice (polling between press and release). - * We ignore events for 0.5s after the first event to avoid reporting 2 presses. - */ -static void peaq_wmi_poll(struct input_dev *input_dev) -{ - static unsigned long last_event_time; - static bool had_events; - union acpi_object obj; - acpi_status status; - u32 dummy = 0; - - struct acpi_buffer input = { sizeof(dummy), &dummy }; - struct acpi_buffer output = { sizeof(obj), &obj }; - - status = wmi_evaluate_method(PEAQ_DOLBY_BUTTON_GUID, 0, - PEAQ_DOLBY_BUTTON_METHOD_ID, - &input, &output); - if (ACPI_FAILURE(status)) - return; - - if (obj.type != ACPI_TYPE_INTEGER) { - dev_err(&input_dev->dev, - "Error WMBC did not return an integer\n"); - return; - } - - if (!obj.integer.value) - return; - - if (had_events && time_before(jiffies, last_event_time + - msecs_to_jiffies(PEAQ_POLL_IGNORE_MS))) - return; - - input_event(input_dev, EV_KEY, KEY_SOUND, 1); - input_sync(input_dev); - input_event(input_dev, EV_KEY, KEY_SOUND, 0); - input_sync(input_dev); - - last_event_time = jiffies; - had_events = true; -} - -/* Some other devices (Shuttle XS35) use the same WMI GUID for other purposes */ -static const struct dmi_system_id peaq_dmi_table[] __initconst = { - { - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "PEAQ"), - DMI_MATCH(DMI_PRODUCT_NAME, "PEAQ PMM C1010 MD99187"), - }, - }, - {} -}; - -static int __init peaq_wmi_init(void) -{ - int err; - - /* WMI GUID is not unique, also check for a DMI match */ - if (!dmi_check_system(peaq_dmi_table)) - return -ENODEV; - - if (!wmi_has_guid(PEAQ_DOLBY_BUTTON_GUID)) - return -ENODEV; - - peaq_poll_dev = input_allocate_device(); - if (!peaq_poll_dev) - return -ENOMEM; - - peaq_poll_dev->name = "PEAQ WMI hotkeys"; - peaq_poll_dev->phys = "wmi/input0"; - peaq_poll_dev->id.bustype = BUS_HOST; - input_set_capability(peaq_poll_dev, EV_KEY, KEY_SOUND); - - err = input_setup_polling(peaq_poll_dev, peaq_wmi_poll); - if (err) - goto err_out; - - input_set_poll_interval(peaq_poll_dev, PEAQ_POLL_INTERVAL_MS); - input_set_max_poll_interval(peaq_poll_dev, PEAQ_POLL_MAX_MS); - - err = input_register_device(peaq_poll_dev); - if (err) - goto err_out; - - return 0; - -err_out: - input_free_device(peaq_poll_dev); - return err; -} - -static void __exit peaq_wmi_exit(void) -{ - input_unregister_device(peaq_poll_dev); -} - -module_init(peaq_wmi_init); -module_exit(peaq_wmi_exit); - -MODULE_DESCRIPTION("PEAQ 2-in-1 WMI hotkey driver"); -MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); -MODULE_LICENSE("GPL"); |