btstack/src/btstack_hid.h
2021-11-02 09:31:00 +01:00

135 lines
5.2 KiB
C

/*
* Copyright (C) 2021 BlueKitchen GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
* 4. Any redistribution, use, or modification is done solely for
* personal benefit and not for any commercial purpose or for
* monetary gain.
*
* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* Please inquire about commercial licensing options at
* contact@bluekitchen-gmbh.com
*
*/
/**
* @title Human Interface Device (HID)
*
*/
#ifndef HID_H
#define HID_H
#if defined __cplusplus
extern "C" {
#endif
#include <stdint.h>
#define HID_BOOT_MODE_KEYBOARD_ID 1
#define HID_BOOT_MODE_MOUSE_ID 2
typedef enum {
HID_MESSAGE_TYPE_HANDSHAKE = 0,
HID_MESSAGE_TYPE_HID_CONTROL,
HID_MESSAGE_TYPE_RESERVED_2,
HID_MESSAGE_TYPE_RESERVED_3,
HID_MESSAGE_TYPE_GET_REPORT,
HID_MESSAGE_TYPE_SET_REPORT,
HID_MESSAGE_TYPE_GET_PROTOCOL,
HID_MESSAGE_TYPE_SET_PROTOCOL,
HID_MESSAGE_TYPE_GET_IDLE_DEPRECATED,
HID_MESSAGE_TYPE_SET_IDLE_DEPRECATED,
HID_MESSAGE_TYPE_DATA,
HID_MESSAGE_TYPE_DATC_DEPRECATED
} hid_message_type_t;
typedef enum {
HID_HANDSHAKE_PARAM_TYPE_SUCCESSFUL = 0x00, // This code is used to acknowledge requests. A device that has correctly received SET_REPORT, SET_IDLE or SET_PROTOCOL payload transmits an acknowledgment to the host.
HID_HANDSHAKE_PARAM_TYPE_NOT_READY, // This code indicates that a device is too busy to accept data. The Bluetooth HID Host should retransmit the data the next time it communicates with the device.
HID_HANDSHAKE_PARAM_TYPE_ERR_INVALID_REPORT_ID, // Invalid report ID transmitted.
HID_HANDSHAKE_PARAM_TYPE_ERR_UNSUPPORTED_REQUEST, // The device does not support the request. This result code shall be used if the HIDP message type is unsupported.
HID_HANDSHAKE_PARAM_TYPE_ERR_INVALID_PARAMETER, // A parameter value is out of range or inappropriate for the request.
HID_HANDSHAKE_PARAM_TYPE_ERR_UNKNOWN = 0x0E, // Device could not identify the error condition.
HID_HANDSHAKE_PARAM_TYPE_ERR_FATAL = 0x0F, // Restart is essential to resume functionality
// BTstack custom error codes
HID_HANDSHAKE_PARAM_TYPE_ERR_DISCONNECT
} hid_handshake_param_type_t;
typedef enum {
HID_CONTROL_PARAM_NOP_DEPRECATED = 0, // Deprecated: No Operation.
HID_CONTROL_PARAM_HARD_RESET_DEPRECATED, // Deprecated: Device performs Power On System Test (POST) then initializes all internal variables and initiates normal operations.
HID_CONTROL_PARAM_SOFT_RESET_DEPRECATED, // Deprecated: Device initializes all internal variables and initiates normal operations.
HID_CONTROL_PARAM_SUSPEND = 0x03, // Go to reduced power mode.
HID_CONTROL_PARAM_EXIT_SUSPEND, // Exit reduced power mode.
HID_CONTROL_PARAM_VIRTUAL_CABLE_UNPLUG
} hid_control_param_t;
typedef enum {
HID_PROTOCOL_MODE_BOOT = 0,
HID_PROTOCOL_MODE_REPORT,
// the following item is only used for API calls in hid_host.h: hid_host_connect, hid_host_accept_connection
// in contrast to previous two enum items that will enforce given mode, this one enables fallback from report to boot mode
HID_PROTOCOL_MODE_REPORT_WITH_FALLBACK_TO_BOOT
} hid_protocol_mode_t;
typedef enum {
HID_REPORT_TYPE_RESERVED = 0,
HID_REPORT_TYPE_INPUT,
HID_REPORT_TYPE_OUTPUT,
HID_REPORT_TYPE_FEATURE
} hid_report_type_t;
typedef enum {
HID_REPORT_ID_UNDECLARED,
HID_REPORT_ID_VALID,
HID_REPORT_ID_INVALID
} hid_report_id_status_t;
/* API_START */
/*
* @brief Get boot descriptor data
* @result data
*/
const uint8_t * btstack_hid_get_boot_descriptor_data(void);
/*
* @brief Get boot descriptor length
* @result length
*/
uint16_t btstack_hid_get_boot_descriptor_len(void);
/* API_END */
#if defined __cplusplus
}
#endif
#endif