diff options
Diffstat (limited to 'quantum/split_common/transport.c')
| -rw-r--r-- | quantum/split_common/transport.c | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/quantum/split_common/transport.c b/quantum/split_common/transport.c new file mode 100644 index 000000000..95738530e --- /dev/null +++ b/quantum/split_common/transport.c @@ -0,0 +1,224 @@ + +#include "config.h" +#include "matrix.h" +#include "quantum.h" + +#define ROWS_PER_HAND (MATRIX_ROWS/2) + +#ifdef RGBLIGHT_ENABLE +# include "rgblight.h" +#endif + +#ifdef BACKLIGHT_ENABLE +# include "backlight.h" + extern backlight_config_t backlight_config; +#endif + +#if defined(USE_I2C) || defined(EH) + +#include "i2c.h" + +#ifndef SLAVE_I2C_ADDRESS +# define SLAVE_I2C_ADDRESS 0x32 +#endif + +#if (MATRIX_COLS > 8) +# error "Currently only supports 8 COLS" +#endif + +// Get rows from other half over i2c +bool transport_master(matrix_row_t matrix[]) { + int err = 0; + + // write backlight info +#ifdef BACKLIGHT_ENABLE + if (BACKLIT_DIRTY) { + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) { goto i2c_error; } + + // Backlight location + err = i2c_master_write(I2C_BACKLIT_START); + if (err) { goto i2c_error; } + + // Write backlight + i2c_master_write(get_backlight_level()); + + BACKLIT_DIRTY = false; + } +#endif + + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) { goto i2c_error; } + + // start of matrix stored at I2C_KEYMAP_START + err = i2c_master_write(I2C_KEYMAP_START); + if (err) { goto i2c_error; } + + // Start read + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ); + if (err) { goto i2c_error; } + + if (!err) { + int i; + for (i = 0; i < ROWS_PER_HAND-1; ++i) { + matrix[i] = i2c_master_read(I2C_ACK); + } + matrix[i] = i2c_master_read(I2C_NACK); + i2c_master_stop(); + } else { +i2c_error: // the cable is disconnceted, or something else went wrong + i2c_reset_state(); + return false; + } + +#ifdef RGBLIGHT_ENABLE + if (RGB_DIRTY) { + err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE); + if (err) { goto i2c_error; } + + // RGB Location + err = i2c_master_write(I2C_RGB_START); + if (err) { goto i2c_error; } + + uint32_t dword = eeconfig_read_rgblight(); + + // Write RGB + err = i2c_master_write_data(&dword, 4); + if (err) { goto i2c_error; } + + RGB_DIRTY = false; + i2c_master_stop(); + } +#endif + + return true; +} + +void transport_slave(matrix_row_t matrix[]) { + + for (int i = 0; i < ROWS_PER_HAND; ++i) + { + i2c_slave_buffer[I2C_KEYMAP_START + i] = matrix[i]; + } + // Read Backlight Info + #ifdef BACKLIGHT_ENABLE + if (BACKLIT_DIRTY) + { + backlight_set(i2c_slave_buffer[I2C_BACKLIT_START]); + BACKLIT_DIRTY = false; + } + #endif + #ifdef RGBLIGHT_ENABLE + if (RGB_DIRTY) + { + // Disable interupts (RGB data is big) + cli(); + // Create new DWORD for RGB data + uint32_t dword; + + // Fill the new DWORD with the data that was sent over + uint8_t * dword_dat = (uint8_t *)(&dword); + for (int i = 0; i < 4; i++) + { + dword_dat[i] = i2c_slave_buffer[I2C_RGB_START + i]; + } + + // Update the RGB now with the new data and set RGB_DIRTY to false + rgblight_update_dword(dword); + RGB_DIRTY = false; + // Re-enable interupts now that RGB is set + sei(); + } + #endif +} + +void transport_master_init(void) { + i2c_master_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]; +} Serial_s2m_buffer_t; + +typedef struct _Serial_m2s_buffer_t { +#ifdef BACKLIGHT_ENABLE + uint8_t backlight_level; +#endif +#if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT) + rgblight_config_t rgblight_config; //not yet use + // + // 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 the RGBLIGHT_SPLIT macro. + // + // Otherwise, if the master side MCU drives both sides RGB LED chains, + // there is no need to communicate. +#endif +} Serial_m2s_buffer_t; + +volatile Serial_s2m_buffer_t serial_s2m_buffer = {}; +volatile Serial_m2s_buffer_t serial_m2s_buffer = {}; +uint8_t volatile status0 = 0; + +SSTD_t transactions[] = { + { (uint8_t *)&status0, + sizeof(serial_m2s_buffer), (uint8_t *)&serial_m2s_buffer, + sizeof(serial_s2m_buffer), (uint8_t *)&serial_s2m_buffer + } +}; + +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)); } + +bool transport_master(matrix_row_t matrix[]) { + + if (soft_serial_transaction()) { + return false; + } + + // TODO: if MATRIX_COLS > 8 change to unpack() + for (int i = 0; i < ROWS_PER_HAND; ++i) { + matrix[i] = serial_s2m_buffer.smatrix[i]; + } + + #if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT) + // Code to send RGB over serial goes here (not implemented yet) + #endif + + #ifdef BACKLIGHT_ENABLE + // Write backlight level for slave to read + serial_m2s_buffer.backlight_level = backlight_config.enable ? backlight_config.level : 0; + #endif + + return true; +} + +void transport_slave(matrix_row_t matrix[]) { + + // TODO: if MATRIX_COLS > 8 change to pack() + for (int i = 0; i < ROWS_PER_HAND; ++i) + { + serial_s2m_buffer.smatrix[i] = matrix[i]; + } + #ifdef BACKLIGHT_ENABLE + backlight_set(serial_m2s_buffer.backlight_level); + #endif + #if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_SPLIT) + // Add serial implementation for RGB here + #endif + +} + +#endif |