本文整理汇总了C++中serial_out函数的典型用法代码示例。如果您正苦于以下问题：C++ serial_out函数的具体用法？C++ serial_out怎么用？C++ serial_out使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了serial_out函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: serial_omap_stop_tx
static void serial_omap_stop_tx(struct uart_port *port)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
if (up->use_dma &&
up->uart_dma.tx_dma_channel != OMAP_UART_DMA_CH_FREE) {
/*
* Check if dma is still active. If yes do nothing,
* return. Else stop dma
*/
if (omap_get_dma_active_status(up->uart_dma.tx_dma_channel))
return;
omap_stop_dma(up->uart_dma.tx_dma_channel);
omap_free_dma(up->uart_dma.tx_dma_channel);
up->uart_dma.tx_dma_channel = OMAP_UART_DMA_CH_FREE;
}
if (up->ier & UART_IER_THRI) {
up->ier &= ~UART_IER_THRI;
serial_out(up, UART_IER, up->ier);
}
}
开发者ID:mjw56，项目名称:linux-2.6，代码行数:22，代码来源:omap-serial.c
示例2: NS16550_init
void NS16550_init(NS16550_t com_port, int baud_divisor)
{
#if (defined(CONFIG_SPL_BUILD) && \
(defined(CONFIG_OMAP34XX) || defined(CONFIG_OMAP44XX)))
/*
* On some OMAP3/OMAP4 devices when UART3 is configured for boot mode
* before SPL starts only THRE bit is set. We have to empty the
* transmitter before initialization starts.
*/
if ((serial_in(&com_port->lsr) & (UART_LSR_TEMT | UART_LSR_THRE))
== UART_LSR_THRE) {
if (baud_divisor != -1)
NS16550_setbrg(com_port, baud_divisor);
serial_out(0, &com_port->mdr1);
}
#endif
while (!(serial_in(&com_port->lsr) & UART_LSR_TEMT))
;
serial_out(CONFIG_SYS_NS16550_IER, &com_port->ier);
#if defined(CONFIG_OMAP) || defined(CONFIG_AM33XX) || \
defined(CONFIG_TI81XX) || defined(CONFIG_AM43XX)
serial_out(0x7, &com_port->mdr1); /* mode select reset TL16C750*/
#endif
NS16550_setbrg(com_port, 0);
serial_out(UART_MCRVAL, &com_port->mcr);
serial_out(UART_FCRVAL, &com_port->fcr);
if (baud_divisor != -1)
NS16550_setbrg(com_port, baud_divisor);
#if defined(CONFIG_OMAP) || \
defined(CONFIG_AM33XX) || defined(CONFIG_SOC_DA8XX) || \
defined(CONFIG_TI81XX) || defined(CONFIG_AM43XX)
/* /16 is proper to hit 115200 with 48MHz */
serial_out(0, &com_port->mdr1);
#endif /* CONFIG_OMAP */
#if defined(CONFIG_SOC_KEYSTONE)
serial_out(UART_REG_VAL_PWREMU_MGMT_UART_ENABLE, &com_port->regC);
#endif
}
开发者ID:KunYi，项目名称:uboot-samx6i，代码行数:41，代码来源:ns16550.c
示例3: sw_uart_force_lcr
static void sw_uart_force_lcr(struct sw_uart_port *sw_uport, unsigned msecs)
{
unsigned long expire = jiffies + msecs_to_jiffies(msecs);
struct uart_port *port = &sw_uport->port;
serial_out(port, SW_UART_HALT_FORCECFG, SW_UART_HALT);
serial_out(port, sw_uport->dll, SW_UART_DLL);
serial_out(port, sw_uport->dlh, SW_UART_DLH);
serial_out(port, sw_uport->lcr, SW_UART_LCR);
serial_out(port, SW_UART_HALT_FORCECFG|SW_UART_HALT_LCRUP, SW_UART_HALT);
while (time_before(jiffies, expire) && (serial_in(port, SW_UART_HALT) & SW_UART_HALT_LCRUP));
/* do not call printk here, yemao 2013-5-20 15:00:38
if (serial_in(port, SW_UART_HALT) & SW_UART_HALT_LCRUP)
SERIAL_MSG("uart%d, Force LCR failed\n", sw_uport->id);
*/
serial_out(port, 0, SW_UART_HALT);
}
开发者ID:GREYFOXRGR，项目名称:BPI-M3-bsp，代码行数:17，代码来源:sunxi-uart.c
示例4: serial_omap_set_mctrl
//static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned char mcr = 0;
dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->pdev->id);
if (mctrl & TIOCM_RTS)
mcr |= UART_MCR_RTS;
if (mctrl & TIOCM_DTR)
mcr |= UART_MCR_DTR;
if (mctrl & TIOCM_OUT1)
mcr |= UART_MCR_OUT1;
if (mctrl & TIOCM_OUT2)
mcr |= UART_MCR_OUT2;
if (mctrl & TIOCM_LOOP)
mcr |= UART_MCR_LOOP;
serial_omap_port_enable(up);
up->mcr = serial_in(up, UART_MCR);
up->mcr |= mcr;
serial_out(up, UART_MCR, up->mcr);
serial_omap_port_disable(up);
}
开发者ID:manusreload，项目名称:android_kernel_huawei_omap4，代码行数:24，代码来源:omap-serial.c
示例5: serial_omap_set_mctrl
static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned char mcr = 0;
dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->port.line);
if (mctrl & TIOCM_RTS)
mcr |= UART_MCR_RTS;
if (mctrl & TIOCM_DTR)
mcr |= UART_MCR_DTR;
if (mctrl & TIOCM_OUT1)
mcr |= UART_MCR_OUT1;
if (mctrl & TIOCM_OUT2)
mcr |= UART_MCR_OUT2;
if (mctrl & TIOCM_LOOP)
mcr |= UART_MCR_LOOP;
pm_runtime_get_sync(&up->pdev->dev);
up->mcr = serial_in(up, UART_MCR);
up->mcr |= mcr;
serial_out(up, UART_MCR, up->mcr);
pm_runtime_put(&up->pdev->dev);
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:23，代码来源:omap-serial.c
示例6: pnx8xxx_int
static irqreturn_t pnx8xxx_int(int irq, void *dev_id)
{
struct pnx8xxx_port *sport = dev_id;
unsigned int status;
spin_lock(&sport->port.lock);
status = serial_in(sport, PNX8XXX_ISTAT) & serial_in(sport, PNX8XXX_IEN);
if (status & (PNX8XXX_UART_INT_RX | PNX8XXX_UART_INT_BREAK))
pnx8xxx_rx_chars(sport);
if (status & PNX8XXX_UART_INT_TX)
pnx8xxx_tx_chars(sport);
serial_out(sport, PNX8XXX_ICLR, status);
spin_unlock(&sport->port.lock);
return IRQ_HANDLED;
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:23，代码来源:pnx8xxx_uart.c
示例7: pnx8xxx_int
static irqreturn_t pnx8xxx_int(int irq, void *dev_id)
{
struct pnx8xxx_port *sport = dev_id;
unsigned int status;
spin_lock(&sport->port.lock);
/* Get the interrupts */
status = serial_in(sport, PNX8XXX_ISTAT) & serial_in(sport, PNX8XXX_IEN);
/* Byte or break signal received */
if (status & (PNX8XXX_UART_INT_RX | PNX8XXX_UART_INT_BREAK))
pnx8xxx_rx_chars(sport);
/* TX holding register empty - transmit a byte */
if (status & PNX8XXX_UART_INT_TX)
pnx8xxx_tx_chars(sport);
/* Clear the ISTAT register */
serial_out(sport, PNX8XXX_ICLR, status);
spin_unlock(&sport->port.lock);
return IRQ_HANDLED;
}
开发者ID:nos1609，项目名称:Chrono_Kernel-1，代码行数:23，代码来源:pnx8xxx_uart.c
示例8: serial_omap_rx_timeout
static void serial_omap_rx_timeout(unsigned long uart_no)
{
struct uart_omap_port *up = ui[uart_no - 1];
unsigned int curr_dma_pos;
curr_dma_pos = omap_readl(OMAP34XX_DMA4_BASE + OMAP_DMA4_CDAC(up->uart_dma.rx_dma_channel));
if ((curr_dma_pos == up->uart_dma.prev_rx_dma_pos) || (curr_dma_pos == 0)) {
/*
* If there is no transfer rx happening for 10sec then stop the dma
* else just restart the timer. See if 10 sec can be improved.
*/
if (jiffies_to_msecs(jiffies - isr8250_activity) < 10000)
mod_timer(&up->uart_dma.rx_timer, jiffies +
usecs_to_jiffies(up->uart_dma.rx_timeout));
else {
del_timer(&up->uart_dma.rx_timer);
serial_omap_stop_rxdma(up);
up->ier |= UART_IER_RDI;
serial_out(up, UART_IER, up->ier);
}
return;
}
else {
unsigned int curr_transmitted_size = curr_dma_pos - up->uart_dma.prev_rx_dma_pos;
up->port.icount.rx += curr_transmitted_size;
tty_insert_flip_string(up->port.info->port.tty, up->uart_dma.rx_buf + (up->uart_dma.prev_rx_dma_pos - up->uart_dma.rx_buf_dma_phys), curr_transmitted_size);
tty_flip_buffer_push(up->port.info->port.tty);
up->uart_dma.prev_rx_dma_pos = curr_dma_pos;
if (up->uart_dma.rx_buf_size + up->uart_dma.rx_buf_dma_phys == curr_dma_pos) {
serial_omap_start_rxdma(up);
}
else
mod_timer(&up->uart_dma.rx_timer, jiffies +
usecs_to_jiffies(up->uart_dma.rx_timeout));
isr8250_activity = jiffies;
}
}
开发者ID:moko365，项目名称:moko365-devkit8000-kernel，代码行数:37，代码来源:omap-serial.c
示例9: ns16550_serial_putc
DEBUG_UART_FUNCS
#endif
#ifdef CONFIG_DM_SERIAL
static int ns16550_serial_putc(struct udevice *dev, const char ch)
{
struct NS16550 *const com_port = dev_get_priv(dev);
if (!(serial_in(&com_port->lsr) & UART_LSR_THRE))
return -EAGAIN;
serial_out(ch, &com_port->thr);
/*
* Call watchdog_reset() upon newline. This is done here in putc
* since the environment code uses a single puts() to print the complete
* environment upon "printenv". So we can't put this watchdog call
* in puts().
*/
if (ch == '\n')
WATCHDOG_RESET();
return 0;
}
开发者ID:KunYi，项目名称:uboot-samx6i，代码行数:24，代码来源:ns16550.c
示例10: serial_omap_set_mctrl
static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned char mcr = 0, old_mcr;
dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->port.line);
if (mctrl & TIOCM_RTS)
mcr |= UART_MCR_RTS;
if (mctrl & TIOCM_DTR)
mcr |= UART_MCR_DTR;
if (mctrl & TIOCM_OUT1)
mcr |= UART_MCR_OUT1;
if (mctrl & TIOCM_OUT2)
mcr |= UART_MCR_OUT2;
if (mctrl & TIOCM_LOOP)
mcr |= UART_MCR_LOOP;
pm_runtime_get_sync(up->dev);
old_mcr = serial_in(up, UART_MCR);
old_mcr &= ~(UART_MCR_LOOP | UART_MCR_OUT2 | UART_MCR_OUT1 |
UART_MCR_DTR | UART_MCR_RTS);
up->mcr = old_mcr | mcr;
serial_out(up, UART_MCR, up->mcr);
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
if (gpio_is_valid(up->DTR_gpio) &&
!!(mctrl & TIOCM_DTR) != up->DTR_active) {
up->DTR_active = !up->DTR_active;
if (gpio_cansleep(up->DTR_gpio))
schedule_work(&up->qos_work);
else
gpio_set_value(up->DTR_gpio,
up->DTR_active != up->DTR_inverted);
}
}
开发者ID:AD5GB，项目名称:kernel_n5_3.10-experimental，代码行数:36，代码来源:omap-serial.c
示例11: serial_omap_pm
static void
serial_omap_pm(struct uart_port *port, unsigned int state,
unsigned int oldstate)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned char efr;
dev_dbg(up->port.dev, "serial_omap_pm+%d\n", up->port.line);
pm_runtime_get_sync(up->dev);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, efr | UART_EFR_ECB);
serial_out(up, UART_LCR, 0);
serial_out(up, UART_IER, (state != 0) ? UART_IERX_SLEEP : 0);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_EFR, efr);
serial_out(up, UART_LCR, 0);
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
开发者ID:DenisLug，项目名称:mptcp，代码行数:23，代码来源:omap-serial.c
示例12: serial_omap_set_termios
static void
serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct uart_omap_port *up = (struct uart_omap_port *)port;
unsigned char cval = 0;
unsigned char efr = 0;
unsigned long flags = 0;
unsigned int baud, quot;
switch (termios->c_cflag & CSIZE) {
case CS5:
cval = UART_LCR_WLEN5;
break;
case CS6:
cval = UART_LCR_WLEN6;
break;
case CS7:
cval = UART_LCR_WLEN7;
break;
default:
case CS8:
cval = UART_LCR_WLEN8;
break;
}
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
if (termios->c_cflag & PARENB)
cval |= UART_LCR_PARITY;
if (!(termios->c_cflag & PARODD))
cval |= UART_LCR_EPAR;
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/13);
quot = serial_omap_get_divisor(port, baud);
up->calc_latency = (USEC_PER_SEC * up->port.fifosize) / (baud / 8);
up->latency = up->calc_latency;
schedule_work(&up->qos_work);
up->dll = quot & 0xff;
up->dlh = quot >> 8;
up->mdr1 = UART_OMAP_MDR1_DISABLE;
up->fcr = UART_FCR_R_TRIG_01 | UART_FCR_T_TRIG_01 |
UART_FCR_ENABLE_FIFO;
if (up->use_dma)
up->fcr |= UART_FCR_DMA_SELECT;
pm_runtime_get_sync(&up->pdev->dev);
spin_lock_irqsave(&up->port.lock, flags);
uart_update_timeout(port, termios->c_cflag, baud);
up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (termios->c_iflag & INPCK)
up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
up->port.read_status_mask |= UART_LSR_BI;
up->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
if (termios->c_iflag & IGNBRK) {
up->port.ignore_status_mask |= UART_LSR_BI;
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_OE;
}
if ((termios->c_cflag & CREAD) == 0)
up->port.ignore_status_mask |= UART_LSR_DR;
up->ier &= ~UART_IER_MSI;
if (UART_ENABLE_MS(&up->port, termios->c_cflag))
up->ier |= UART_IER_MSI;
serial_out(up, UART_IER, up->ier);
serial_out(up, UART_LCR, cval);
up->lcr = cval;
up->scr = OMAP_UART_SCR_TX_EMPTY;
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_DLL, 0);
serial_out(up, UART_DLM, 0);
serial_out(up, UART_LCR, 0);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
up->mcr = serial_in(up, UART_MCR);
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
up->scr |= OMAP_UART_SCR_RX_TRIG_GRANU1_MASK;
//.........这里部分代码省略.........
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:101，代码来源:omap-serial.c
示例13: serial_hsu_set_termios
//.........这里部分代码省略.........
quot = 1;
ps = 0x10;
mul = 0x3600;
switch (baud) {
case 3500000:
mul = 0x3345;
ps = 0xC;
break;
case 1843200:
mul = 0x2400;
break;
case 3000000:
case 2500000:
case 2000000:
case 1500000:
case 1000000:
case 500000:
/* mul/ps/quot = 0x9C4/0x10/0x1 will make a 500000 bps */
mul = baud / 500000 * 0x9C4;
break;
default:
/* Use uart_get_divisor to get quot for other baud rates */
quot = 0;
}
if (!quot)
quot = uart_get_divisor(port, baud);
if ((up->port.uartclk / quot) < (2400 * 16))
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_HSU_64_1B;
else if ((up->port.uartclk / quot) < (230400 * 16))
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_HSU_64_16B;
else
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_HSU_64_32B;
fcr |= UART_FCR_HSU_64B_FIFO;
#ifdef MFD_HSU_A0_STEPPING
/* A0 doesn't support half empty IRQ */
fcr |= UART_FCR_FULL_EMPT_TXI;
#endif
/*
* Ok, we're now changing the port state. Do it with
* interrupts disabled.
*/
spin_lock_irqsave(&up->port.lock, flags);
/* Update the per-port timeout */
uart_update_timeout(port, termios->c_cflag, baud);
up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (termios->c_iflag & INPCK)
up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
up->port.read_status_mask |= UART_LSR_BI;
/* Characters to ignore */
up->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
if (termios->c_iflag & IGNBRK) {
up->port.ignore_status_mask |= UART_LSR_BI;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_OE;
}
/* Ignore all characters if CREAD is not set */
if ((termios->c_cflag & CREAD) == 0)
up->port.ignore_status_mask |= UART_LSR_DR;
/*
* CTS flow control flag and modem status interrupts, disable
* MSI by default
*/
up->ier &= ~UART_IER_MSI;
if (UART_ENABLE_MS(&up->port, termios->c_cflag))
up->ier |= UART_IER_MSI;
serial_out(up, UART_IER, up->ier);
if (termios->c_cflag & CRTSCTS)
up->mcr |= UART_MCR_AFE | UART_MCR_RTS;
else
up->mcr &= ~UART_MCR_AFE;
serial_out(up, UART_LCR, cval | UART_LCR_DLAB); /* set DLAB */
serial_out(up, UART_DLL, quot & 0xff); /* LS of divisor */
serial_out(up, UART_DLM, quot >> 8); /* MS of divisor */
serial_out(up, UART_LCR, cval); /* reset DLAB */
serial_out(up, UART_MUL, mul); /* set MUL */
serial_out(up, UART_PS, ps); /* set PS */
up->lcr = cval; /* Save LCR */
serial_hsu_set_mctrl(&up->port, up->port.mctrl);
serial_out(up, UART_FCR, fcr);
spin_unlock_irqrestore(&up->port.lock, flags);
}
开发者ID:ANFS，项目名称:ANFS-kernel，代码行数:101，代码来源:mfd.c
示例14: serial_pxa_set_termios
static void
serial_pxa_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct uart_pxa_port *up = (struct uart_pxa_port *)port;
unsigned char cval, fcr = 0;
unsigned long flags;
unsigned int baud, quot;
switch (termios->c_cflag & CSIZE) {
case CS5:
cval = UART_LCR_WLEN5;
break;
case CS6:
cval = UART_LCR_WLEN6;
break;
case CS7:
cval = UART_LCR_WLEN7;
break;
default:
case CS8:
cval = UART_LCR_WLEN8;
break;
}
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
if (termios->c_cflag & PARENB)
cval |= UART_LCR_PARITY;
if (!(termios->c_cflag & PARODD))
cval |= UART_LCR_EPAR;
/*
* Ask the core to calculate the divisor for us.
*/
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
if ((up->port.uartclk / quot) < (2400 * 16))
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR1;
else if ((up->port.uartclk / quot) < (230400 * 16))
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR8;
else
fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR32;
/*
* Ok, we're now changing the port state. Do it with
* interrupts disabled.
*/
spin_lock_irqsave(&up->port.lock, flags);
/*
* Ensure the port will be enabled.
* This is required especially for serial console.
*/
up->ier |= IER_UUE;
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, baud);
up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (termios->c_iflag & INPCK)
up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
up->port.read_status_mask |= UART_LSR_BI;
/*
* Characters to ignore
*/
up->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
if (termios->c_iflag & IGNBRK) {
up->port.ignore_status_mask |= UART_LSR_BI;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_OE;
}
/*
* ignore all characters if CREAD is not set
*/
if ((termios->c_cflag & CREAD) == 0)
up->port.ignore_status_mask |= UART_LSR_DR;
/*
* CTS flow control flag and modem status interrupts
*/
up->ier &= ~UART_IER_MSI;
if (UART_ENABLE_MS(&up->port, termios->c_cflag))
up->ier |= UART_IER_MSI;
serial_out(up, UART_IER, up->ier);
serial_out(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
//.........这里部分代码省略.........
开发者ID:LouZiffer，项目名称:m900_kernel_cupcake-SDX，代码行数:101，代码来源:pxa.c
示例15: serial_hsu_startup
/*
* What special to do:
* 1. chose the 64B fifo mode
* 2. make sure not to select half empty mode for A0 stepping
* 3. start dma or pio depends on configuration
* 4. we only allocate dma memory when needed
*/
static int serial_hsu_startup(struct uart_port *port)
{
struct uart_hsu_port *up =
container_of(port, struct uart_hsu_port, port);
unsigned long flags;
/*
* Clear the FIFO buffers and disable them.
* (they will be reenabled in set_termios())
*/
serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO |
UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
serial_out(up, UART_FCR, 0);
/* Clear the interrupt registers. */
(void) serial_in(up, UART_LSR);
(void) serial_in(up, UART_RX);
(void) serial_in(up, UART_IIR);
(void) serial_in(up, UART_MSR);
/* Now, initialize the UART, default is 8n1 */
serial_out(up, UART_LCR, UART_LCR_WLEN8);
spin_lock_irqsave(&up->port.lock, flags);
up->port.mctrl |= TIOCM_OUT2;
serial_hsu_set_mctrl(&up->port, up->port.mctrl);
/*
* Finally, enable interrupts. Note: Modem status interrupts
* are set via set_termios(), which will be occurring imminently
* anyway, so we don't enable them here.
*/
if (!up->use_dma)
up->ier = UART_IER_RLSI | UART_IER_RDI | UART_IER_RTOIE;
else
up->ier = 0;
serial_out(up, UART_IER, up->ier);
spin_unlock_irqrestore(&up->port.lock, flags);
/* DMA init */
if (up->use_dma) {
struct hsu_dma_buffer *dbuf;
struct circ_buf *xmit = &port->state->xmit;
up->dma_tx_on = 0;
/* First allocate the RX buffer */
dbuf = &up->rxbuf;
dbuf->buf = kzalloc(HSU_DMA_BUF_SIZE, GFP_KERNEL);
if (!dbuf->buf) {
up->use_dma = 0;
goto exit;
}
dbuf->dma_addr = dma_map_single(port->dev,
dbuf->buf,
HSU_DMA_BUF_SIZE,
DMA_FROM_DEVICE);
dbuf->dma_size = HSU_DMA_BUF_SIZE;
/* Start the RX channel right now */
hsu_dma_start_rx_chan(up->rxc, dbuf);
/* Next init the TX DMA */
dbuf = &up->txbuf;
dbuf->buf = xmit->buf;
dbuf->dma_addr = dma_map_single(port->dev,
dbuf->buf,
UART_XMIT_SIZE,
DMA_TO_DEVICE);
dbuf->dma_size = UART_XMIT_SIZE;
/* This should not be changed all around */
chan_writel(up->txc, HSU_CH_BSR, 32);
chan_writel(up->txc, HSU_CH_MOTSR, 4);
dbuf->ofs = 0;
}
exit:
/* And clear the interrupt registers again for luck. */
(void) serial_in(up, UART_LSR);
(void) serial_in(up, UART_RX);
(void) serial_in(up, UART_IIR);
(void) serial_in(up, UART_MSR);
up->running = 1;
return 0;
}
开发者ID:ANFS，项目名称:ANFS-kernel，代码行数:97，代码来源:mfd.c
示例16: serial_omap_stop_tx
static void serial_omap_stop_tx(struct uart_port *port)
{
struct uart_omap_port *up = to_uart_omap_port(port);
int res;
pm_runtime_get_sync(up->dev);
/* Handle RS-485 */
if (port->rs485.flags & SER_RS485_ENABLED) {
if (up->scr & OMAP_UART_SCR_TX_EMPTY) {
/* THR interrupt is fired when both TX FIFO and TX
* shift register are empty. This means there's nothing
* left to transmit now, so make sure the THR interrupt
* is fired when TX FIFO is below the trigger level,
* disable THR interrupts and toggle the RS-485 GPIO
* data direction pin if needed.
*/
up->scr &= ~OMAP_UART_SCR_TX_EMPTY;
serial_out(up, UART_OMAP_SCR, up->scr);
res = (port->rs485.flags & SER_RS485_RTS_AFTER_SEND) ?
1 : 0;
if (gpio_get_value(up->rts_gpio) != res) {
if (port->rs485.delay_rts_after_send > 0)
mdelay(
port->rs485.delay_rts_after_send);
gpio_set_value(up->rts_gpio, res);
}
} else {
/* We're asked to stop, but there's still stuff in the
* UART FIFO, so make sure the THR interrupt is fired
* when both TX FIFO and TX shift register are empty.
* The next THR interrupt (if no transmission is started
* in the meantime) will indicate the end of a
* transmission. Therefore we _don't_ disable THR
* interrupts in this situation.
*/
up->scr |= OMAP_UART_SCR_TX_EMPTY;
serial_out(up, UART_OMAP_SCR, up->scr);
return;
}
}
if (up->ier & UART_IER_THRI) {
up->ier &= ~UART_IER_THRI;
serial_out(up, UART_IER, up->ier);
}
if ((port->rs485.flags & SER_RS485_ENABLED) &&
!(port->rs485.flags & SER_RS485_RX_DURING_TX)) {
/*
* Empty the RX FIFO, we are not interested in anything
* received during the half-duplex transmission.
*/
serial_out(up, UART_FCR, up->fcr | UART_FCR_CLEAR_RCVR);
/* Re-enable RX interrupts */
up->ier |= UART_IER_RLSI | UART_IER_RDI;
up->port.read_status_mask |= UART_LSR_DR;
serial_out(up, UART_IER, up->ier);
}
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
}
开发者ID:DenisLug，项目名称:mptcp，代码行数:63，代码来源:omap-serial.c
示例17: serial_omap_restore_context
static void serial_omap_restore_context(struct uart_omap_port *up)
{
if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
serial_omap_mdr1_errataset(up, UART_OMAP_MDR1_DISABLE);
else
serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_EFR, UART_EFR_ECB);
serial_out(up, UART_LCR, 0x0);
serial_out(up, UART_IER, 0x0);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_DLL, up->dll);
serial_out(up, UART_DLM, up->dlh);
serial_out(up, UART_LCR, 0x0);
serial_out(up, UART_IER, up->ier);
serial_out(up, UART_FCR, up->fcr);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_MCR, up->mcr);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_OMAP_SCR, up->scr);
serial_out(up, UART_EFR, up->efr);
serial_out(up, UART_LCR, up->lcr);
if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
serial_omap_mdr1_errataset(up, up->mdr1);
else
serial_out(up, UART_OMAP_MDR1, up->mdr1);
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:28，代码来源:omap-serial.c
示例18: serial_omap_startup
static int serial_omap_startup(struct uart_port *port)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned long flags = 0;
int retval;
/*
* Allocate the IRQ
*/
retval = request_irq(up->port.irq, serial_omap_irq, up->port.irqflags,
up->name, up);
if (retval)
return retval;
/* Optional wake-up IRQ */
if (up->wakeirq) {
retval = dev_pm_set_dedicated_wake_irq(up->dev, up->wakeirq);
if (retval) {
free_irq(up->port.irq, up);
return retval;
}
}
dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
pm_runtime_get_sync(up->dev);
/*
* Clear the FIFO buffers and disable them.
* (they will be reenabled in set_termios())
*/
serial_omap_clear_fifos(up);
/*
* Clear the interrupt registers.
*/
(void) serial_in(up, UART_LSR);
if (serial_in(up, UART_LSR) & UART_LSR_DR)
(void) serial_in(up, UART_RX);
(void) serial_in(up, UART_IIR);
(void) serial_in(up, UART_MSR);
/*
* Now, initialize the UART
*/
serial_out(up, UART_LCR, UART_LCR_WLEN8);
spin_lock_irqsave(&up->port.lock, flags);
/*
* Most PC uarts need OUT2 raised to enable interrupts.
*/
up->port.mctrl |= TIOCM_OUT2;
serial_omap_set_mctrl(&up->port, up->port.mctrl);
spin_unlock_irqrestore(&up->port.lock, flags);
up->msr_saved_flags = 0;
/*
* Finally, enable interrupts. Note: Modem status interrupts
* are set via set_termios(), which will be occurring imminently
* anyway, so we don't enable them here.
*/
up->ier = UART_IER_RLSI | UART_IER_RDI;
serial_out(up, UART_IER, up->ier);
/* Enable module level wake up */
up->wer = OMAP_UART_WER_MOD_WKUP;
if (up->features & OMAP_UART_WER_HAS_TX_WAKEUP)
up->wer |= OMAP_UART_TX_WAKEUP_EN;
serial_out(up, UART_OMAP_WER, up->wer);
pm_runtime_mark_last_busy(up->dev);
pm_runtime_put_autosuspend(up->dev);
up->port_activity = jiffies;
return 0;
}
开发者ID:DenisLug，项目名称:mptcp，代码行数:74，代码来源:omap-serial.c
示例19: serial_in
static inline void
serial_omap_configure_xonxoff
(struct uart_omap_port *up, struct ktermios *termios)
{
up->lcr = serial_in(up, UART_LCR);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
up->efr = serial_in(up, UART_EFR);
serial_out(up, UART_EFR, up->efr & ~UART_EFR_ECB);
serial_out(up, UART_XON1, termios->c_cc[VSTART]);
serial_out(up, UART_XOFF1, termios->c_cc[VSTOP]);
up->efr &= OMAP_UART_SW_CLR;
/*
* IXON Flag:
* Enable XON/XOFF flow control on output.
* Transmit XON1, XOFF1
*/
if (termios->c_iflag & IXON)
up->efr |= OMAP_UART_SW_TX;
/*
* IXOFF Flag:
* Enable XON/XOFF flow control on input.
* Receiver compares XON1, XOFF1.
*/
if (termios->c_iflag & IXOFF)
up->efr |= OMAP_UART_SW_RX;
serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
up->mcr = serial_in(up, UART_MCR);
if (termios->c_iflag & IXANY)
up->mcr |= UART_MCR_XONANY;
serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
serial_out(up, UART_TI752_TCR, OMAP_UART_TCR_TRIG);
serial_out(up, UART_EFR, up->efr | UART_EFR_SCD);
serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
serial_out(up, UART_MCR, up->mcr & ~UART_MCR_TCRTLR);
serial_out(up, UART_LCR, up->lcr);
}
开发者ID:mjduddin，项目名称:B14CKB1RD_kernel_m8，代码行数:48，代码来源:omap-serial.c
示例20: serial_omap_set_termios
static void
serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct uart_omap_port *up = to_uart_omap_port(port);
unsigned char cval = 0;
unsigned long flags = 0;
unsigned int baud, quot;
switch (termios->c_cflag & CSIZE) {
case CS5:
cval = UART_LCR_WLEN5;
break;
case CS6:
cval = UART_LCR_WLEN6;
break;
case CS7:
cval = UART_LCR_WLEN7;
break;
default:
case CS8:
cval = UART_LCR_WLEN8;
break;
}
if (termios->c_cflag & CSTOPB)
cval |= UART_LCR_STOP;
if (termios->c_cflag & PARENB)
cval |= UART_LCR_PARITY;
if (!(termios->c_cflag & PARODD))
cval |= UART_LCR_EPAR;
if (termios->c_cflag & CMSPAR)
cval |= UART_LCR_SPAR;
/*
* Ask the core to calculate the divisor for us.
*/
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/13);
quot = serial_omap_get_divisor(port, baud);
/* calculate wakeup latency constraint */
up->calc_latency = (USEC_PER_SEC * up->port.fifosize) / (baud / 8);
up->latency = up->calc_latency;
schedule_work(&up->qos_work);
up->dll = quot & 0xff;
up->dlh = quot >> 8;
up->mdr1 = UART_OMAP_MDR1_DISABLE;
up->fcr = UART_FCR_R_TRIG_01 | UART_FCR_T_TRIG_01 |
UART_FCR_ENABLE_FIFO;
/*
* Ok, we're now changing the port state. Do it with
* interrupts disabled.
*/
pm_runtime_get_sync(up->dev);
spin_lock_irqsave(&up->port.lock, flags);
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, baud);
up->port.read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
if (termios->c_iflag & INPCK)
up->port.read_status_mask |= UART_LSR_FE | UART_LSR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
up->port.read_status_mask |= UART_LSR_BI;
/*
* Characters to ignore
*/
up->port.ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
if (termios->c_iflag & IGNBRK) {
up->port.ignore_status_mask |= UART_LSR_BI;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
up->port.ignore_status_mask |= UART_LSR_OE;
}
/*
* ignore all characters if CREAD is not set
*/
if ((termios->c_cflag & CREAD) == 0)
up->port.ignore_status_mask |= UART_LSR_DR;
/*
* Modem status interrupts
*/
up->ier &= ~UART_IER_MSI;
if (UART_ENABLE_MS(&up->port, termios->c_cflag))
up->ier |= UART_IER_MSI;
serial_out(up, UART_IER, up->ier);
//.........这里部分代码省略.........
开发者ID:DenisLug，项目名称:mptcp，代码行数:101，代码来源:omap-serial.c
注：本文中的serial_out函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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