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Diffstat (limited to 'src/drivers/generic/gpio_keys/chip.h')
-rw-r--r-- | src/drivers/generic/gpio_keys/chip.h | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/drivers/generic/gpio_keys/chip.h b/src/drivers/generic/gpio_keys/chip.h new file mode 100644 index 0000000000..bdeb0afeb7 --- /dev/null +++ b/src/drivers/generic/gpio_keys/chip.h @@ -0,0 +1,67 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2018 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef __DRIVERS_GENERIC_GPIO_KEYS_H__ +#define __DRIVERS_GENERIC_GPIO_KEYS_H__ + +#include <arch/acpi_device.h> +#include <stdint.h> + +/* Linux input type */ +enum { + /* Switch event */ + EV_SW = 0x5, +}; + +/* Switch events type (Linux code emitted for EV_SW) */ +enum { + SW_PEN_INSERTED = 0xf, +}; + +/* Details of the child node defining key */ +struct key_info { + /* Device name of the child node - Mandatory */ + const char *dev_name; + /* Keycode emitted for this key - Mandatory */ + uint32_t linux_code; + /* + * Event type generated for this key + * See EV_* above. + */ + uint32_t linux_input_type; + /* Descriptive name of the key */ + const char *label; + /* Can this key wake-up the system? */ + bool is_wakeup_source; + /* Can this key be disabled? */ + bool can_be_disabled; + /* Debounce interval time in milliseconds */ + uint32_t debounce_interval; +}; + +struct drivers_generic_gpio_keys_config { + /* Device name of the parent gpio-keys node */ + const char *name; + /* GPIO line providing the key - Mandatory */ + struct acpi_gpio gpio; + /* Is this a polled GPIO button? - Optional */ + bool is_polled; + /* Poll inverval - Mandatory only if GPIO is polled. */ + uint32_t poll_interval; + /* Details about the key - Mandatory */ + struct key_info key; +}; + +#endif /* __DRIVERS_GENERIC_GPIO_KEYS_H__ */ |