C++ (Cpp) ps2ser_in示例

示例#1

文件： ps2ser.c 项目： AdrianHuang/u-boot

static int ps2ser_getc_hw(void)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
	int res = -1;

#ifdef CONFIG_MPC5xxx
	if (psc->psc_status & PSC_SR_RXRDY) {
		res = (psc->psc_buffer_8);
	}
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	if (com_port->lsr & UART_LSR_DR) {
		res = com_port->rbr;
	}
#else
	if (ps2ser_in(UART_LSR) & UART_LSR_DR) {
		res = (ps2ser_in(UART_RX));
	}
#endif

	return res;
}

示例#2

文件： ps2ser.c 项目： BillTheBest/pandorabox

static void ps2ser_interrupt(void *dev_id)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#endif
	int chr;
	int status;

	do {
		chr = ps2ser_getc_hw();
#ifdef CONFIG_MPC5xxx
		status = psc->psc_status;
#else
		status = ps2ser_in(UART_IIR);
#endif
		if (chr < 0) continue;

		if (atomic_read(&ps2buf_cnt) < PS2BUF_SIZE) {
			ps2buf[ps2buf_in_idx++] = chr;
			ps2buf_in_idx &= (PS2BUF_SIZE - 1);
			atomic_inc(&ps2buf_cnt);
		} else {
			printf ("ps2ser.c: buffer overflow\n");
		}
#ifdef CONFIG_MPC5xxx
	} while (status & PSC_SR_RXRDY);
#else
	} while (status & UART_IIR_RDI);

示例#3

文件： ps2ser.c 项目： BillTheBest/pandorabox

int ps2ser_init(void)
{
	int quot;
	unsigned cval;

	state = rs_table + CONFIG_PS2SERIAL;

	quot = state->baud_base / PS2SER_BAUD;
	cval = 0x3; /* 8N1 - 8 data bits, no parity bits, 1 stop bit */

	  /* Set speed, enable interrupts, enable FIFO
	   */
	ps2ser_out(UART_LCR, cval | UART_LCR_DLAB);
	ps2ser_out(UART_DLL, quot & 0xff);
	ps2ser_out(UART_DLM, quot >> 8);
	ps2ser_out(UART_LCR, cval);
	ps2ser_out(UART_IER, UART_IER_RDI);
	ps2ser_out(UART_MCR, UART_MCR_OUT2 | UART_MCR_DTR | UART_MCR_RTS);
	ps2ser_out(UART_FCR,
	    UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);

	/* If we read 0xff from the LSR, there is no UART here
	 */
	if (ps2ser_in(UART_LSR) == 0xff) {
		printf ("ps2ser.c: no UART found\n");
		return -1;
	}

	irq_install_handler(state->irq, ps2ser_interrupt, NULL);

	return 0;
}

示例#4

文件： ps2ser.c 项目： AdrianHuang/u-boot

static void ps2ser_interrupt(void *dev_id)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
	int chr;
	int status;

	do {
		chr = ps2ser_getc_hw();
#ifdef CONFIG_MPC5xxx
		status = psc->psc_status;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
		status = com_port->lsr;
#else
		status = ps2ser_in(UART_IIR);
#endif
		if (chr < 0) continue;

		if (atomic_read(&ps2buf_cnt) < PS2BUF_SIZE) {
			ps2buf[ps2buf_in_idx++] = chr;
			ps2buf_in_idx &= (PS2BUF_SIZE - 1);
			atomic_inc(&ps2buf_cnt);
		} else {
			printf ("ps2ser.c: buffer overflow\n");
		}
#ifdef CONFIG_MPC5xxx
	} while (status & PSC_SR_RXRDY);
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	} while (status & UART_LSR_DR);

示例#5

文件： ps2ser.c 项目： AdrianHuang/u-boot

void ps2ser_putc(int chr)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	NS16550_t com_port = (NS16550_t)COM_BASE;
#endif
#ifdef DEBUG
	printf(">>>> 0x%02x\n", chr);
#endif

#ifdef CONFIG_MPC5xxx
	while (!(psc->psc_status & PSC_SR_TXRDY));

	psc->psc_buffer_8 = chr;
#elif defined(CONFIG_MPC8540) || defined(CONFIG_MPC8541) || \
      defined(CONFIG_MPC8548) || defined(CONFIG_MPC8555)
	while ((com_port->lsr & UART_LSR_THRE) == 0);
	com_port->thr = chr;
#else
	while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE));

	ps2ser_out(UART_TX, chr);
#endif
}

示例#6

文件： ps2ser.c 项目： BillTheBest/pandorabox

static int ps2ser_getc_hw(void)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#endif
	int res = -1;

#ifdef CONFIG_MPC5xxx
	if (psc->psc_status & PSC_SR_RXRDY) {
		res = (psc->psc_buffer_8);
	}
#else
	if (ps2ser_in(UART_LSR) & UART_LSR_DR) {
		res = (ps2ser_in(UART_RX));
	}
#endif

	return res;
}

示例#7

文件： ps2ser.c 项目： BillTheBest/pandorabox

void ps2ser_putc(int chr)
{
#ifdef CONFIG_MPC5xxx
	volatile struct mpc5xxx_psc *psc = (struct mpc5xxx_psc *)PSC_BASE;
#endif
#ifdef DEBUG
	printf(">>>> 0x%02x\n", chr);
#endif

#ifdef CONFIG_MPC5xxx
	while (!(psc->psc_status & PSC_SR_TXRDY));

	psc->psc_buffer_8 = chr;
#else
	while (!(ps2ser_in(UART_LSR) & UART_LSR_THRE));

	ps2ser_out(UART_TX, chr);
#endif
}