C++ (Cpp) ZS_TX_ACTIVE Examples

Example #1

File: ip22zilog.c Project: LuweiLight/linux-3.14.35-vbal

/* Reprogram the Zilog channel HW registers with the copies found in the
 * software state struct.  If the transmitter is busy, we defer this update
 * until the next TX complete interrupt.  Else, we do it right now.
 *
 * The UART port lock must be held and local interrupts disabled.
 */
static void ip22zilog_maybe_update_regs(struct uart_ip22zilog_port *up,
				       struct zilog_channel *channel)
{
	if (!ZS_REGS_HELD(up)) {
		if (ZS_TX_ACTIVE(up)) {
			up->flags |= IP22ZILOG_FLAG_REGS_HELD;
		} else {
			__load_zsregs(channel, up->curregs);
		}
	}
}

Example #2

File: pmac_zilog.c Project: 3sOx/asuswrt-merlin

/* 
 * We do like sunzilog to avoid disrupting pending Tx
 * Reprogram the Zilog channel HW registers with the copies found in the
 * software state struct.  If the transmitter is busy, we defer this update
 * until the next TX complete interrupt.  Else, we do it right now.
 *
 * The UART port lock must be held and local interrupts disabled.
 */
static void pmz_maybe_update_regs(struct uart_pmac_port *uap)
{
       	if (!ZS_REGS_HELD(uap)) {
		if (ZS_TX_ACTIVE(uap)) {
			uap->flags |= PMACZILOG_FLAG_REGS_HELD;
		} else {
			pmz_debug("pmz: maybe_update_regs: updating\n");
			pmz_load_zsregs(uap, uap->curregs);
		}
	}
}