qmk-firmware/quantum/split_common/transport.h
Nick Brassel 172e6a7030
Extensible split data sync (#11930)
* Extensible split data sync capability through transactions.

- Split common transport has been split up between the transport layer
  and data layer.
- Split "transactions" model used, with convergence between I2C and
  serial data definitions.
- Slave matrix "generation count" is used to determine if the full slave
  matrix needs to be retrieved.
- Encoders get the same "generation count" treatment.
- All other blocks of data are synchronised when a change is detected.
- All transmissions have a globally-configurable deadline before a
  transmission is forced (`FORCED_SYNC_THROTTLE_MS`, default 100ms).
- Added atomicity for all core-synced data, preventing partial updates
- Added retries to AVR i2c_master's i2c_start, to minimise the number of
  failed transactions when interrupts are disabled on the slave due to
  atomicity checks.
- Some keyboards have had slight modifications made in order to ensure
  that they still build due to firmware size restrictions.

* Fixup LED_MATRIX compile.

* Parameterise ERROR_DISCONNECT_COUNT.
2021-06-18 09:10:06 +10:00

175 lines
5.4 KiB
C

/* Copyright 2021 QMK
*
* 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 "progmem.h"
#include "action_layer.h"
#include "matrix.h"
#ifndef RPC_M2S_BUFFER_SIZE
# define RPC_M2S_BUFFER_SIZE 32
#endif // RPC_M2S_BUFFER_SIZE
#ifndef RPC_S2M_BUFFER_SIZE
# define RPC_S2M_BUFFER_SIZE 32
#endif // RPC_S2M_BUFFER_SIZE
void transport_master_init(void);
void transport_slave_init(void);
// returns false if valid data not received from slave
bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]);
void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]);
bool transport_execute_transaction(int8_t id, const void *initiator2target_buf, uint16_t initiator2target_length, void *target2initiator_buf, uint16_t target2initiator_length);
#ifdef ENCODER_ENABLE
# include "encoder.h"
# define NUMBER_OF_ENCODERS (sizeof((pin_t[])ENCODERS_PAD_A) / sizeof(pin_t))
#endif // ENCODER_ENABLE
#ifdef BACKLIGHT_ENABLE
# include "backlight.h"
#endif // BACKLIGHT_ENABLE
#ifdef RGBLIGHT_ENABLE
# include "rgblight.h"
#endif // RGBLIGHT_ENABLE
typedef struct _split_slave_matrix_sync_t {
uint8_t checksum;
matrix_row_t matrix[(MATRIX_ROWS) / 2];
} split_slave_matrix_sync_t;
#ifdef SPLIT_TRANSPORT_MIRROR
typedef struct _split_master_matrix_sync_t {
matrix_row_t matrix[(MATRIX_ROWS) / 2];
} split_master_matrix_sync_t;
#endif // SPLIT_TRANSPORT_MIRROR
#ifdef ENCODER_ENABLE
typedef struct _split_slave_encoder_sync_t {
uint8_t checksum;
uint8_t state[NUMBER_OF_ENCODERS];
} split_slave_encoder_sync_t;
#endif // ENCODER_ENABLE
#if !defined(NO_ACTION_LAYER) && defined(SPLIT_LAYER_STATE_ENABLE)
typedef struct _split_layers_sync_t {
layer_state_t layer_state;
layer_state_t default_layer_state;
} split_layers_sync_t;
#endif // !defined(NO_ACTION_LAYER) && defined(SPLIT_LAYER_STATE_ENABLE)
#if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
# include "led_matrix.h"
typedef struct _led_matrix_sync_t {
led_eeconfig_t led_matrix;
bool led_suspend_state;
} led_matrix_sync_t;
#endif // defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
#if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
# include "rgb_matrix.h"
typedef struct _rgb_matrix_sync_t {
rgb_config_t rgb_matrix;
bool rgb_suspend_state;
} rgb_matrix_sync_t;
#endif // defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
#ifdef SPLIT_MODS_ENABLE
typedef struct _split_mods_sync_t {
uint8_t real_mods;
uint8_t weak_mods;
# ifndef NO_ACTION_ONESHOT
uint8_t oneshot_mods;
# endif // NO_ACTION_ONESHOT
} split_mods_sync_t;
#endif // SPLIT_MODS_ENABLE
#if defined(SPLIT_TRANSACTION_IDS_KB) || defined(SPLIT_TRANSACTION_IDS_USER)
typedef struct _rpc_sync_info_t {
int8_t transaction_id;
uint8_t m2s_length;
uint8_t s2m_length;
} rpc_sync_info_t;
#endif // defined(SPLIT_TRANSACTION_IDS_KB) || defined(SPLIT_TRANSACTION_IDS_USER)
typedef struct _split_shared_memory_t {
#ifdef USE_I2C
int8_t transaction_id;
#endif // USE_I2C
split_slave_matrix_sync_t smatrix;
#ifdef SPLIT_TRANSPORT_MIRROR
split_master_matrix_sync_t mmatrix;
#endif // SPLIT_TRANSPORT_MIRROR
#ifdef ENCODER_ENABLE
split_slave_encoder_sync_t encoders;
#endif // ENCODER_ENABLE
#ifndef DISABLE_SYNC_TIMER
uint32_t sync_timer;
#endif // DISABLE_SYNC_TIMER
#if !defined(NO_ACTION_LAYER) && defined(SPLIT_LAYER_STATE_ENABLE)
split_layers_sync_t layers;
#endif // !defined(NO_ACTION_LAYER) && defined(SPLIT_LAYER_STATE_ENABLE)
#ifdef SPLIT_LED_STATE_ENABLE
uint8_t led_state;
#endif // SPLIT_LED_STATE_ENABLE
#ifdef SPLIT_MODS_ENABLE
split_mods_sync_t mods;
#endif // SPLIT_MODS_ENABLE
#ifdef BACKLIGHT_ENABLE
uint8_t backlight_level;
#endif // BACKLIGHT_ENABLE
#if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
rgblight_syncinfo_t rgblight_sync;
#endif // defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
#if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
led_matrix_sync_t led_matrix_sync;
#endif // defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
#if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
rgb_matrix_sync_t rgb_matrix_sync;
#endif // defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
#if defined(WPM_ENABLE) && defined(SPLIT_WPM_ENABLE)
uint8_t current_wpm;
#endif // defined(WPM_ENABLE) && defined(SPLIT_WPM_ENABLE)
#if defined(SPLIT_TRANSACTION_IDS_KB) || defined(SPLIT_TRANSACTION_IDS_USER)
rpc_sync_info_t rpc_info;
uint8_t rpc_m2s_buffer[RPC_M2S_BUFFER_SIZE];
uint8_t rpc_s2m_buffer[RPC_S2M_BUFFER_SIZE];
#endif // defined(SPLIT_TRANSACTION_IDS_KB) || defined(SPLIT_TRANSACTION_IDS_USER)
} split_shared_memory_t;
extern split_shared_memory_t *const split_shmem;