Function uart_next_transmit

core/uart.c:210–219

}

static void uart_next_transmit(void) {
    /* Put character in transmit shift register */
    uint8_t bits = 5 + (uart.lcr >> 0 & 3);
    uart.tsr = uart.txfifo[uart.tfvi++ & (UART_FIFO_DEPTH - 1)] & ((1 << bits) - 1);
    /* If FIFO is now empty, set corresponding status and interrupt */
    if (!likely(--uart.tfve)) {
        uart.lsr |= 1 << 5;
        uart.isr |= 1 << 1;
    }
}

static void uart_event(enum sched_item_id id) {
    if (uart.txActive) {