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keychron_qmk_firmware/quantum/split_common/transport.c

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#include <string.h>
#include <stddef.h>
#include "config.h"
#include "matrix.h"
#include "quantum.h"
#define ROWS_PER_HAND (MATRIX_ROWS / 2)
#define SYNC_TIMER_OFFSET 2
#ifdef RGBLIGHT_ENABLE
# include "rgblight.h"
#endif
#ifdef BACKLIGHT_ENABLE
# include "backlight.h"
#endif
#ifdef ENCODER_ENABLE
# include "encoder.h"
static pin_t encoders_pad[] = ENCODERS_PAD_A;
# define NUMBER_OF_ENCODERS (sizeof(encoders_pad) / sizeof(pin_t))
#endif
#if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
# include "led_matrix.h"
#endif
#if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
# include "rgb_matrix.h"
#endif
#if defined(USE_I2C)
# include "i2c_master.h"
# include "i2c_slave.h"
typedef struct _I2C_slave_buffer_t {
# ifndef DISABLE_SYNC_TIMER
uint32_t sync_timer;
# endif
# ifdef SPLIT_TRANSPORT_MIRROR
matrix_row_t mmatrix[ROWS_PER_HAND];
# endif
matrix_row_t smatrix[ROWS_PER_HAND];
# ifdef SPLIT_MODS_ENABLE
uint8_t real_mods;
uint8_t weak_mods;
# ifndef NO_ACTION_ONESHOT
uint8_t oneshot_mods;
# endif
# endif
# ifdef BACKLIGHT_ENABLE
uint8_t backlight_level;
# endif
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
rgblight_syncinfo_t rgblight_sync;
# endif
# ifdef ENCODER_ENABLE
uint8_t encoder_state[NUMBER_OF_ENCODERS];
# endif
# ifdef WPM_ENABLE
uint8_t current_wpm;
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
led_eeconfig_t led_matrix;
bool led_suspend_state;
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
rgb_config_t rgb_matrix;
bool rgb_suspend_state;
# endif
} I2C_slave_buffer_t;
static I2C_slave_buffer_t *const i2c_buffer = (I2C_slave_buffer_t *)i2c_slave_reg;
# define I2C_SYNC_TIME_START offsetof(I2C_slave_buffer_t, sync_timer)
# define I2C_KEYMAP_MASTER_START offsetof(I2C_slave_buffer_t, mmatrix)
# define I2C_KEYMAP_SLAVE_START offsetof(I2C_slave_buffer_t, smatrix)
# define I2C_REAL_MODS_START offsetof(I2C_slave_buffer_t, real_mods)
# define I2C_WEAK_MODS_START offsetof(I2C_slave_buffer_t, weak_mods)
# define I2C_ONESHOT_MODS_START offsetof(I2C_slave_buffer_t, oneshot_mods)
# define I2C_BACKLIGHT_START offsetof(I2C_slave_buffer_t, backlight_level)
# define I2C_RGB_START offsetof(I2C_slave_buffer_t, rgblight_sync)
# define I2C_ENCODER_START offsetof(I2C_slave_buffer_t, encoder_state)
# define I2C_WPM_START offsetof(I2C_slave_buffer_t, current_wpm)
# define I2C_LED_MATRIX_START offsetof(I2C_slave_buffer_t, led_matrix)
# define I2C_LED_SUSPEND_START offsetof(I2C_slave_buffer_t, led_suspend_state)
# define I2C_RGB_MATRIX_START offsetof(I2C_slave_buffer_t, rgb_matrix)
# define I2C_RGB_SUSPEND_START offsetof(I2C_slave_buffer_t, rgb_suspend_state)
# define TIMEOUT 100
# ifndef SLAVE_I2C_ADDRESS
# define SLAVE_I2C_ADDRESS 0x32
# endif
// Get rows from other half over i2c
bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
i2c_readReg(SLAVE_I2C_ADDRESS, I2C_KEYMAP_SLAVE_START, (void *)slave_matrix, sizeof(i2c_buffer->smatrix), TIMEOUT);
# ifdef SPLIT_TRANSPORT_MIRROR
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_KEYMAP_MASTER_START, (void *)master_matrix, sizeof(i2c_buffer->mmatrix), TIMEOUT);
# endif
// write backlight info
# ifdef BACKLIGHT_ENABLE
uint8_t level = is_backlight_enabled() ? get_backlight_level() : 0;
if (level != i2c_buffer->backlight_level) {
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_BACKLIGHT_START, (void *)&level, sizeof(level), TIMEOUT) >= 0) {
i2c_buffer->backlight_level = level;
}
}
# endif
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
if (rgblight_get_change_flags()) {
rgblight_syncinfo_t rgblight_sync;
rgblight_get_syncinfo(&rgblight_sync);
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_START, (void *)&rgblight_sync, sizeof(rgblight_sync), TIMEOUT) >= 0) {
rgblight_clear_change_flags();
}
}
# endif
# ifdef ENCODER_ENABLE
i2c_readReg(SLAVE_I2C_ADDRESS, I2C_ENCODER_START, (void *)i2c_buffer->encoder_state, sizeof(i2c_buffer->encoder_state), TIMEOUT);
encoder_update_raw(i2c_buffer->encoder_state);
# endif
# ifdef WPM_ENABLE
uint8_t current_wpm = get_current_wpm();
if (current_wpm != i2c_buffer->current_wpm) {
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_WPM_START, (void *)&current_wpm, sizeof(current_wpm), TIMEOUT) >= 0) {
i2c_buffer->current_wpm = current_wpm;
}
}
# endif
# ifdef SPLIT_MODS_ENABLE
uint8_t real_mods = get_mods();
if (real_mods != i2c_buffer->real_mods) {
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_REAL_MODS_START, (void *)&real_mods, sizeof(real_mods), TIMEOUT) >= 0) {
i2c_buffer->real_mods = real_mods;
}
}
uint8_t weak_mods = get_weak_mods();
if (weak_mods != i2c_buffer->weak_mods) {
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_WEAK_MODS_START, (void *)&weak_mods, sizeof(weak_mods), TIMEOUT) >= 0) {
i2c_buffer->weak_mods = weak_mods;
}
}
# ifndef NO_ACTION_ONESHOT
uint8_t oneshot_mods = get_oneshot_mods();
if (oneshot_mods != i2c_buffer->oneshot_mods) {
if (i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_ONESHOT_MODS_START, (void *)&oneshot_mods, sizeof(oneshot_mods), TIMEOUT) >= 0) {
i2c_buffer->oneshot_mods = oneshot_mods;
}
}
# endif
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_LED_MATRIX_START, (void *)led_matrix_eeconfig, sizeof(i2c_buffer->led_matrix), TIMEOUT);
bool suspend_state = led_matrix_get_suspend_state();
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_LED_SUSPEND_START, (void *)suspend_state, sizeof(i2c_buffer->led_suspend_state), TIMEOUT);
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_MATRIX_START, (void *)rgb_matrix_config, sizeof(i2c_buffer->rgb_matrix), TIMEOUT);
bool suspend_state = rgb_matrix_get_suspend_state();
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_RGB_SUSPEND_START, (void *)suspend_state, sizeof(i2c_buffer->rgb_suspend_state), TIMEOUT);
# endif
# ifndef DISABLE_SYNC_TIMER
i2c_buffer->sync_timer = sync_timer_read32() + SYNC_TIMER_OFFSET;
i2c_writeReg(SLAVE_I2C_ADDRESS, I2C_SYNC_TIME_START, (void *)&i2c_buffer->sync_timer, sizeof(i2c_buffer->sync_timer), TIMEOUT);
# endif
return true;
}
void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
# ifndef DISABLE_SYNC_TIMER
sync_timer_update(i2c_buffer->sync_timer);
# endif
// Copy matrix to I2C buffer
memcpy((void *)i2c_buffer->smatrix, (void *)slave_matrix, sizeof(i2c_buffer->smatrix));
# ifdef SPLIT_TRANSPORT_MIRROR
memcpy((void *)master_matrix, (void *)i2c_buffer->mmatrix, sizeof(i2c_buffer->mmatrix));
# endif
// Read Backlight Info
# ifdef BACKLIGHT_ENABLE
backlight_set(i2c_buffer->backlight_level);
# endif
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
// Update the RGB with the new data
if (i2c_buffer->rgblight_sync.status.change_flags != 0) {
rgblight_update_sync(&i2c_buffer->rgblight_sync, false);
i2c_buffer->rgblight_sync.status.change_flags = 0;
}
# endif
# ifdef ENCODER_ENABLE
encoder_state_raw(i2c_buffer->encoder_state);
# endif
# ifdef WPM_ENABLE
set_current_wpm(i2c_buffer->current_wpm);
# endif
# ifdef SPLIT_MODS_ENABLE
set_mods(i2c_buffer->real_mods);
set_weak_mods(i2c_buffer->weak_mods);
# ifndef NO_ACTION_ONESHOT
set_oneshot_mods(i2c_buffer->oneshot_mods);
# endif
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
memcpy((void *)i2c_buffer->led_matrix, (void *)led_matrix_eeconfig, sizeof(i2c_buffer->led_matrix));
led_matrix_set_suspend_state(i2c_buffer->led_suspend_state);
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
memcpy((void *)i2c_buffer->rgb_matrix, (void *)rgb_matrix_config, sizeof(i2c_buffer->rgb_matrix));
rgb_matrix_set_suspend_state(i2c_buffer->rgb_suspend_state);
# endif
}
void transport_master_init(void) { i2c_init(); }
void transport_slave_init(void) { i2c_slave_init(SLAVE_I2C_ADDRESS); }
#else // USE_SERIAL
# include "serial.h"
typedef struct _Serial_s2m_buffer_t {
// TODO: if MATRIX_COLS > 8 change to uint8_t packed_matrix[] for pack/unpack
matrix_row_t smatrix[ROWS_PER_HAND];
# ifdef ENCODER_ENABLE
uint8_t encoder_state[NUMBER_OF_ENCODERS];
# endif
} Serial_s2m_buffer_t;
typedef struct _Serial_m2s_buffer_t {
# ifdef SPLIT_MODS_ENABLE
uint8_t real_mods;
uint8_t weak_mods;
# ifndef NO_ACTION_ONESHOT
uint8_t oneshot_mods;
# endif
# endif
# ifndef DISABLE_SYNC_TIMER
uint32_t sync_timer;
# endif
# ifdef SPLIT_TRANSPORT_MIRROR
matrix_row_t mmatrix[ROWS_PER_HAND];
# endif
# ifdef BACKLIGHT_ENABLE
uint8_t backlight_level;
# endif
# ifdef WPM_ENABLE
uint8_t current_wpm;
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
led_eeconfig_t led_matrix;
bool led_suspend_state;
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
rgb_config_t rgb_matrix;
bool rgb_suspend_state;
# endif
} Serial_m2s_buffer_t;
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
// When MCUs on both sides drive their respective RGB LED chains,
// it is necessary to synchronize, so it is necessary to communicate RGB
// information. In that case, define RGBLIGHT_SPLIT with info on the number
// of LEDs on each half.
//
// Otherwise, if the master side MCU drives both sides RGB LED chains,
// there is no need to communicate.
typedef struct _Serial_rgblight_t {
rgblight_syncinfo_t rgblight_sync;
} Serial_rgblight_t;
volatile Serial_rgblight_t serial_rgblight = {};
uint8_t volatile status_rgblight = 0;
# endif
volatile Serial_s2m_buffer_t serial_s2m_buffer = {};
volatile Serial_m2s_buffer_t serial_m2s_buffer = {};
uint8_t volatile status0 = 0;
enum serial_transaction_id {
GET_SLAVE_MATRIX = 0,
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
PUT_RGBLIGHT,
# endif
};
SSTD_t transactions[] = {
[GET_SLAVE_MATRIX] =
{
(uint8_t *)&status0,
sizeof(serial_m2s_buffer),
(uint8_t *)&serial_m2s_buffer,
sizeof(serial_s2m_buffer),
(uint8_t *)&serial_s2m_buffer,
},
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
[PUT_RGBLIGHT] =
{
(uint8_t *)&status_rgblight, sizeof(serial_rgblight), (uint8_t *)&serial_rgblight, 0, NULL // no slave to master transfer
},
# endif
};
void transport_master_init(void) { soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
void transport_slave_init(void) { soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
# if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT)
// rgblight synchronization information communication.
void transport_rgblight_master(void) {
if (rgblight_get_change_flags()) {
rgblight_get_syncinfo((rgblight_syncinfo_t *)&serial_rgblight.rgblight_sync);
if (soft_serial_transaction(PUT_RGBLIGHT) == TRANSACTION_END) {
rgblight_clear_change_flags();
}
}
}
void transport_rgblight_slave(void) {
if (status_rgblight == TRANSACTION_ACCEPTED) {
rgblight_update_sync((rgblight_syncinfo_t *)&serial_rgblight.rgblight_sync, false);
status_rgblight = TRANSACTION_END;
}
}
# else
# define transport_rgblight_master()
# define transport_rgblight_slave()
# endif
bool transport_master(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
# ifndef SERIAL_USE_MULTI_TRANSACTION
if (soft_serial_transaction() != TRANSACTION_END) {
return false;
}
# else
transport_rgblight_master();
if (soft_serial_transaction(GET_SLAVE_MATRIX) != TRANSACTION_END) {
return false;
}
# endif
// TODO: if MATRIX_COLS > 8 change to unpack()
for (int i = 0; i < ROWS_PER_HAND; ++i) {
slave_matrix[i] = serial_s2m_buffer.smatrix[i];
# ifdef SPLIT_TRANSPORT_MIRROR
serial_m2s_buffer.mmatrix[i] = master_matrix[i];
# endif
}
# ifdef BACKLIGHT_ENABLE
// Write backlight level for slave to read
serial_m2s_buffer.backlight_level = is_backlight_enabled() ? get_backlight_level() : 0;
# endif
# ifdef ENCODER_ENABLE
encoder_update_raw((uint8_t *)serial_s2m_buffer.encoder_state);
# endif
# ifdef WPM_ENABLE
// Write wpm to slave
serial_m2s_buffer.current_wpm = get_current_wpm();
# endif
# ifdef SPLIT_MODS_ENABLE
serial_m2s_buffer.real_mods = get_mods();
serial_m2s_buffer.weak_mods = get_weak_mods();
# ifndef NO_ACTION_ONESHOT
serial_m2s_buffer.oneshot_mods = get_oneshot_mods();
# endif
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
serial_m2s_buffer.led_matrix = led_matrix_eeconfig;
serial_m2s_buffer.led_suspend_state = led_matrix_get_suspend_state();
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
serial_m2s_buffer.rgb_matrix = rgb_matrix_config;
serial_m2s_buffer.rgb_suspend_state = rgb_matrix_get_suspend_state();
# endif
# ifndef DISABLE_SYNC_TIMER
serial_m2s_buffer.sync_timer = sync_timer_read32() + SYNC_TIMER_OFFSET;
# endif
return true;
}
void transport_slave(matrix_row_t master_matrix[], matrix_row_t slave_matrix[]) {
transport_rgblight_slave();
# ifndef DISABLE_SYNC_TIMER
sync_timer_update(serial_m2s_buffer.sync_timer);
# endif
// TODO: if MATRIX_COLS > 8 change to pack()
for (int i = 0; i < ROWS_PER_HAND; ++i) {
serial_s2m_buffer.smatrix[i] = slave_matrix[i];
# ifdef SPLIT_TRANSPORT_MIRROR
master_matrix[i] = serial_m2s_buffer.mmatrix[i];
# endif
}
# ifdef BACKLIGHT_ENABLE
backlight_set(serial_m2s_buffer.backlight_level);
# endif
# ifdef ENCODER_ENABLE
encoder_state_raw((uint8_t *)serial_s2m_buffer.encoder_state);
# endif
# ifdef WPM_ENABLE
set_current_wpm(serial_m2s_buffer.current_wpm);
# endif
# ifdef SPLIT_MODS_ENABLE
set_mods(serial_m2s_buffer.real_mods);
set_weak_mods(serial_m2s_buffer.weak_mods);
# ifndef NO_ACTION_ONESHOT
set_oneshot_mods(serial_m2s_buffer.oneshot_mods);
# endif
# endif
# if defined(LED_MATRIX_ENABLE) && defined(LED_MATRIX_SPLIT)
led_matrix_eeconfig = serial_m2s_buffer.led_matrix;
led_matrix_set_suspend_state(serial_m2s_buffer.led_suspend_state);
# endif
# if defined(RGB_MATRIX_ENABLE) && defined(RGB_MATRIX_SPLIT)
rgb_matrix_config = serial_m2s_buffer.rgb_matrix;
rgb_matrix_set_suspend_state(serial_m2s_buffer.rgb_suspend_state);
# endif
}
#endif
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