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/* Copyright 2021 @ Keychron (https://www.keychron.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"
#ifdef BT_DRIVER_UART_BANK
# define BT_DRIVER_UART_TX_BANK BT_DRIVER_UART_BANK
# define BT_DRIVER_UART_RX_BANK BT_DRIVER_UART_BANK
#endif
#ifndef BT_DRIVER_UART_TX_BANK
# define BT_DRIVER_UART_TX_BANK GPIOA
#endif
#ifndef BT_DRIVER_UART_RX_BANK
# define BT_DRIVER_UART_RX_BANK GPIOA
#endif
#ifndef BT_DRIVER_UART_TX
# define BT_DRIVER_UART_TX 2
#endif
#ifndef BT_DRIVER_UART_RX
# define BT_DRIVER_UART_RX 3
#endif
#ifndef BT_DRIVER
# define BT_DRIVER SD2
#endif
#ifdef USE_GPIOV1
# ifndef BT_DRIVER_UART_TX_PAL_MODE
# define BT_DRIVER_UART_TX_PAL_MODE PAL_MODE_STM32_ALTERNATE_PUSHPULL
# endif
# ifndef BT_DRIVER_UART_RX_PAL_MODE
# define BT_DRIVER_UART_RX_PAL_MODE PAL_MODE_STM32_ALTERNATE_PUSHPULL
# endif
#else
// The default PAL alternate modes are used to signal that the pins are used for I2C
# ifndef BT_DRIVER_UART_TX_PAL_MODE
# define BT_DRIVER_UART_TX_PAL_MODE 7
# endif
# ifndef BT_DRIVER_UART_RX_PAL_MODE
# define BT_DRIVER_UART_RX_PAL_MODE 7
# endif
#endif
// Error checking
#if !STM32_SERIAL_USE_USART1 && !STM32_SERIAL_USE_USART2 && !STM32_SERIAL_USE_USART3 && !STM32_SERIAL_USE_UART4 && !STM32_SERIAL_USE_UART5 && !STM32_SERIAL_USE_USART6 && !STM32_SERIAL_USE_UART7 && !STM32_SERIAL_USE_UART8 && !STM32_SERIAL_USE_LPUART1
# error "BT driver activated but no USART/UART peripheral assigned"
#endif
#define PACKECT_HEADER_LEN 5
#define BDA_LEN 6
#define PACKET_MAX_LEN 64
enum {
PAIRING_MODE_DEFAULT = 0x00,
PAIRING_MODE_JUST_WORK,
PAIRING_MODE_PASSKEY_ENTRY,
PAIRING_MODE_LESC_OR_SSP,
PAIRING_MODE_INVALID
};
enum {
BT_MODE_DEFAUL,
BT_MODE_CLASSIC,
BT_MODE_LE, // Note: CKBT51 doesn't support BLE
BT_MODE_INVALID,
};
typedef struct {
uint8_t hostIndex;
uint16_t timeout; /* Pairing timeout, valid value range from 30 to 3600 seconds, 0 for default */
uint8_t pairingMode; /* 0: default, 1: Just Works, 2: Passkey Entry */
uint8_t BRorLE; /* Only available for dual mode module. Keep 0 for single mode module */
uint8_t txPower; /* Only available for BLE module */
const char* leName; /* Only available for BLE module */
} pairing_param_t;
typedef struct {
uint8_t type;
uint16_t full_votage;
uint16_t empty_voltage;
uint16_t shutdown_voltage;
} battery_param_t;
typedef struct {
uint8_t model_name[11];
uint8_t mode;
uint8_t bluetooth_version;
uint8_t firmware_version[11];
uint8_t hardware_version[11];
uint16_t cmd_set_verson;
} __attribute__((packed)) module_info_t;
typedef struct {
uint8_t event_mode; /* Must be 0x02 */
uint16_t connected_idle_timeout;
uint16_t pairing_timeout; /* Range: 30 ~ 3600 second, 0 for default */
uint8_t pairing_mode; /* 0: default, 1: Just Works, 2: Passkey Entry */
uint16_t reconnect_timeout; /* 0: default, 0xFF: Unlimited time, 2 ~ 254 seconds */
uint8_t report_rate; /* 90 or 133 */
uint8_t rsvd1;
uint8_t rsvd2;
uint8_t vendor_id_source; /* 0: From Bluetooth SIG, 1: From USB-IF */
uint16_t verndor_id; /* No effect, the vendor ID is 0x3434 */
uint16_t product_id;
/* Below parametes is only available for BLE module */
uint16_t le_connection_interval_min;
uint16_t le_connection_interval_max;
uint16_t le_connection_interval_timeout;
} __attribute__((packed)) module_param_t;
void ckbt51_init(bool wakeup_from_low_power_mode);
void ckbt51_send_cmd(uint8_t* payload, uint8_t len, bool ack_enable, bool retry);
void ckbt51_send_keyboard(uint8_t* report);
void ckbt51_send_nkro(uint8_t* report);
void ckbt51_send_consumer(uint16_t report);
void ckbt51_send_system(uint16_t report);
void ckbt51_send_mouse(uint8_t* report);
void ckbt51_become_discoverable(uint8_t host_idx, void* param);
void ckbt51_connect(uint8_t hostIndex, uint16_t timeout);
void ckbt51_disconnect(void);
void ckbt51_switch_host(uint8_t hostIndex);
void ckbt51_read_state_reg(uint8_t reg, uint8_t len);
void ckbt51_get_info(module_info_t* info);
void ckbt51_set_param(module_param_t* param);
void ckbt51_get_param(module_param_t* param);
void ckbt51_set_local_name(const char* name);
void ckbt51_get_local_name(void);
void ckbt51_factory_reset(void);
void ckbt51_int_pin_test(bool enable);
void ckbt51_dfu_rx(uint8_t* data, uint8_t length);
void ckbt51_radio_test(uint8_t channel);
void ckbt51_task(void);
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