Ejemplos de sirfsoc_rx_submit_one_dma_desc en C++ (Cpp)

Ejemplo n.º 1

Archivo: sirfsoc_uart.c Proyecto: AnadoluPanteri/kernel-plus-harmattan

/* submit rx dma task into dmaengine */
static void sirfsoc_uart_start_next_rx_dma(struct uart_port *port)
{
	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
	struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
	struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
	unsigned long flags;
	int i;
	spin_lock_irqsave(&sirfport->rx_lock, flags);
	sirfport->rx_io_count = 0;
	wr_regl(port, ureg->sirfsoc_rx_dma_io_ctrl,
		rd_regl(port, ureg->sirfsoc_rx_dma_io_ctrl) &
		~SIRFUART_IO_MODE);
	spin_unlock_irqrestore(&sirfport->rx_lock, flags);
	for (i = 0; i < SIRFSOC_RX_LOOP_BUF_CNT; i++)
		sirfsoc_rx_submit_one_dma_desc(port, i);
	sirfport->rx_completed = sirfport->rx_issued = 0;
	spin_lock_irqsave(&sirfport->rx_lock, flags);
	if (!sirfport->is_marco)
		wr_regl(port, ureg->sirfsoc_int_en_reg,
				rd_regl(port, ureg->sirfsoc_int_en_reg) |
				SIRFUART_RX_DMA_INT_EN(port, uint_en));
	else
		wr_regl(port, ureg->sirfsoc_int_en_reg,
			SIRFUART_RX_DMA_INT_EN(port, uint_en));
	spin_unlock_irqrestore(&sirfport->rx_lock, flags);
}

Ejemplo n.º 2

Archivo: sirfsoc_uart.c Proyecto: 19Dan01/linux

/* submit rx dma task into dmaengine */
static void sirfsoc_uart_start_next_rx_dma(struct uart_port *port)
{
	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
	struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
	struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
	int i;
	sirfport->rx_io_count = 0;
	wr_regl(port, ureg->sirfsoc_rx_dma_io_ctrl,
		rd_regl(port, ureg->sirfsoc_rx_dma_io_ctrl) &
		~SIRFUART_IO_MODE);
	for (i = 0; i < SIRFSOC_RX_LOOP_BUF_CNT; i++)
		sirfsoc_rx_submit_one_dma_desc(port, i);
	sirfport->rx_completed = sirfport->rx_issued = 0;
	if (!sirfport->is_atlas7)
		wr_regl(port, ureg->sirfsoc_int_en_reg,
				rd_regl(port, ureg->sirfsoc_int_en_reg) |
				SIRFUART_RX_DMA_INT_EN(port, uint_en));
	else
		wr_regl(port, ureg->sirfsoc_int_en_reg,
			SIRFUART_RX_DMA_INT_EN(port, uint_en));
}

Ejemplo n.º 3

Archivo: sirfsoc_uart.c Proyecto: AnadoluPanteri/kernel-plus-harmattan

static void sirfsoc_uart_rx_dma_complete_tl(unsigned long param)
{
	struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)param;
	struct uart_port *port = &sirfport->port;
	struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
	struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
	unsigned long flags;
	spin_lock_irqsave(&sirfport->rx_lock, flags);
	while (sirfport->rx_completed != sirfport->rx_issued) {
		sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
					SIRFSOC_RX_DMA_BUF_SIZE);
		if (rd_regl(port, ureg->sirfsoc_int_en_reg) &
				uint_en->sirfsoc_rx_timeout_en)
			sirfsoc_rx_submit_one_dma_desc(port,
					sirfport->rx_completed++);
		else
			sirfport->rx_completed++;
		sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
	}
	spin_unlock_irqrestore(&sirfport->rx_lock, flags);
}

Ejemplo n.º 4

Archivo: sirfsoc_uart.c Proyecto: 19Dan01/linux

static void sirfsoc_uart_rx_dma_complete_tl(unsigned long param)
{
	struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)param;
	struct uart_port *port = &sirfport->port;
	struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
	struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
	unsigned long flags;
	struct dma_tx_state tx_state;
	spin_lock_irqsave(&port->lock, flags);
	while (DMA_COMPLETE == dmaengine_tx_status(sirfport->rx_dma_chan,
			sirfport->rx_dma_items[sirfport->rx_completed].cookie, &tx_state)) {
		sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
					SIRFSOC_RX_DMA_BUF_SIZE);
		if (rd_regl(port, ureg->sirfsoc_int_en_reg) &
				uint_en->sirfsoc_rx_timeout_en)
			sirfsoc_rx_submit_one_dma_desc(port,
					sirfport->rx_completed++);
		else
			sirfport->rx_completed++;
		sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
	}
	spin_unlock_irqrestore(&port->lock, flags);
	tty_flip_buffer_push(&port->state->port);
}