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I2C driver cleanup (#21273)

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* remove i2c_start and i2c_stop from i2c drivers

* remove static i2c_address variable from chibios i2c driver
This commit is contained in:
David Hoelscher 2024-01-17 07:05:38 -06:00 • committed by GitHub
parent 2b0965944d
commit e9bd7d7ad3
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GPG key ID: B5690EEEBB952194
49 changed files with 280 additions and 603 deletions
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38
keyboards/dc01/left/matrix.c
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@ -387,37 +387,13 @@ static void unselect_cols(void)
// Complete rows from other modules over i2c
i2c_status_t i2c_transaction(uint8_t address, uint32_t mask, uint8_t col_offset) {
i2c_status_t status = i2c_start(address, 5);
if (status < 0) {
goto error;
uint8_t data[MATRIX_ROWS + 1];
i2c_status_t status = i2c_readReg(address, 0x01, data, (MATRIX_ROWS + 1), 5);
for (uint8_t i = 0; i < (MATRIX_ROWS) && status >= 0; i++) { //assemble slave matrix in main matrix
matrix[i] &= mask; //mask bits to keep
matrix[i] |= ((uint32_t)data[i+1] << (MATRIX_COLS_SCANNED + col_offset)); //add new bits at the end
}
status = i2c_write(0x01, 50);
if (status < 0) {
goto error;
}
status = i2c_start(address | I2C_READ, 50);
status = i2c_read_ack(50);
if (status != 0x55) { //synchronization byte
goto error;
}
for (uint8_t i = 0; i < MATRIX_ROWS-1 && status >= 0; i++) { //assemble slave matrix in main matrix
matrix[i] &= mask; //mask bits to keep
status = i2c_read_ack(50);
matrix[i] |= ((uint32_t)status << (MATRIX_COLS_SCANNED + col_offset)); //add new bits at the end
}
//last read request must be followed by a NACK
if (status >= 0) {
matrix[MATRIX_ROWS - 1] &= mask; //mask bits to keep
status = i2c_read_nack(50);
matrix[MATRIX_ROWS - 1] |= ((uint32_t)status << (MATRIX_COLS_SCANNED + col_offset)); //add new bits at the end
}
error:
i2c_stop();
return (status < 0) ? status : I2C_STATUS_SUCCESS;
return status;
}