Exemplos de uart_circ_chars_free em C++ (Cpp)

Exemplo n.º 1

static int uart_write_room(struct tty_struct *tty)
{
	struct uart_state *state = tty->driver_data;
	unsigned long flags;
	int ret;

	spin_lock_irqsave(&state->uart_port->lock, flags);
	ret = uart_circ_chars_free(&state->xmit);
	spin_unlock_irqrestore(&state->uart_port->lock, flags);
	return ret;
}

Exemplo n.º 2

Arquivo: mrst_max3110.c Projeto: BitOBSessiOn/android_kernel_asus_P01M

static void serial_m3110_con_putchar(struct uart_port *port, int ch)
{
	struct uart_max3110 *max =
		container_of(port, struct uart_max3110, port);
	struct circ_buf *xmit = &max->con_xmit;

	if (uart_circ_chars_free(xmit)) {
		xmit->buf[xmit->head] = (char)ch;
		xmit->head = (xmit->head + 1) & (PAGE_SIZE - 1);
	}
}

Exemplo n.º 3

Arquivo: mrst_max3110.c Projeto: mcr/linux-2.6

static void serial_m3110_con_putchar(struct uart_port *port, int ch)
{
	struct uart_max3110 *max =
		container_of(port, struct uart_max3110, port);
	struct circ_buf *xmit = &max->con_xmit;

	if (uart_circ_chars_free(xmit)) {
		xmit->buf[xmit->head] = (char)ch;
		xmit->head = (xmit->head + 1) & (PAGE_SIZE - 1);
	}


	if (!test_and_set_bit(CON_TX_NEEDED, &max->uart_flags))
		wake_up_process(max->main_thread);
}

Exemplo n.º 4

static inline int __uart_put_char(struct uart_port *port,
				struct circ_buf *circ, unsigned char c)
{
	unsigned long flags;
	int ret = 0;

	if (!circ->buf)
		return 0;

	spin_lock_irqsave(&port->lock, flags);
	if (uart_circ_chars_free(circ) != 0) {
		circ->buf[circ->head] = c;
		circ->head = (circ->head + 1) & (UART_XMIT_SIZE - 1);
		ret = 1;
	}
	spin_unlock_irqrestore(&port->lock, flags);
	return ret;
}