Stefan Kerkmann 3f9d464412
[Core] usb_device_state: consolidate usb state handling across implementations (#24258)
* usb_device_state: add idle_rate, led and protocol

Previously all usb drivers and platform implementations (expect for our
oddball atsam) tracked the same two global variables:

- keyboard_protocol: to indicate if we are in report or boot protocol
- keyboard_idle: for the idle_rate of the keyboard endpoint

And a local variable that was exposed trough some indirection:

- keyboard_led_state: for the currently set indicator leds (caps lock etc.)

These have all been moved into the usb_device_state struct wich is
accessible by getters and setters.

This reduces code duplication and centralizes the state management
across platforms and drivers.

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

* usb_device_state: reset protocol on reset

The usb hid specification section 7.2.6 states:

When initialized, all devices default to report protocol. However the
host should not make any assumptions about the device’s state and should
set the desired protocol whenever initializing a device.

Thus on reset we should always do exactly that.

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

* keyboards: fix oversize warnings

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>

---------

Signed-off-by: Stefan Kerkmann <karlk90@pm.me>
2024-10-18 09:57:08 +02:00

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C

/*
Copyright 2011 Jun Wako <wakojun@gmail.com>
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, either version 2 of the License, or
(at your option) any later version.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include "report.h"
#include "host_driver.h"
#include "led.h"
#ifdef __cplusplus
extern "C" {
#endif
/* host driver */
void host_set_driver(host_driver_t *driver);
host_driver_t *host_get_driver(void);
/* host driver interface */
uint8_t host_keyboard_leds(void);
led_t host_keyboard_led_state(void);
void host_keyboard_send(report_keyboard_t *report);
void host_nkro_send(report_nkro_t *report);
void host_mouse_send(report_mouse_t *report);
void host_system_send(uint16_t usage);
void host_consumer_send(uint16_t usage);
void host_programmable_button_send(uint32_t data);
uint16_t host_last_system_usage(void);
uint16_t host_last_consumer_usage(void);
#ifdef __cplusplus
}
#endif