summaryrefslogtreecommitdiffstats
path: root/c/src/lib/libbsp/m68k/mcf5235/console/console.c
diff options
context:
space:
mode:
authorJoel Sherrill <joel.sherrill@OARcorp.com>2005-06-17 14:06:05 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2005-06-17 14:06:05 +0000
commit1612af0f62aff5f0f077af77c44203cfa2f7603e (patch)
treeef72b7295687729ced88425a7736ce0ac814b9fb /c/src/lib/libbsp/m68k/mcf5235/console/console.c
parent2005-06-17 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-1612af0f62aff5f0f077af77c44203cfa2f7603e.tar.bz2
2005-06-17 Mike Bertosh <mbertosh@motioncontrol.org>
* .cvsignore, ChangeLog, Makefile.am, README, bsp_specs, configure.ac, clock/clock.c, console/console.c, include/bsp.h, include/coverhd.h, include/tm27.h, network/network.c, start/start.S, startup/bspclean.c, startup/bspstart.c, startup/init5235.c, startup/linkcmds, startup/linkcmdsflash, startup/linkcmdsram, timer/timer.c: New files.
Diffstat (limited to 'c/src/lib/libbsp/m68k/mcf5235/console/console.c')
-rw-r--r--c/src/lib/libbsp/m68k/mcf5235/console/console.c799
1 files changed, 799 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/m68k/mcf5235/console/console.c b/c/src/lib/libbsp/m68k/mcf5235/console/console.c
new file mode 100644
index 0000000000..48f4179055
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/mcf5235/console/console.c
@@ -0,0 +1,799 @@
+ /*
+ * Multi UART console serial I/O.
+ *
+ * TO DO: Add DMA input/output
+ */
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <rtems/libio.h>
+#include <rtems/termiostypes.h>
+#include <termios.h>
+#include <bsp.h>
+#include <malloc.h>
+#include <rtems/mw_uid.h>
+
+#include <rtems/bspIo.h>
+
+#define UART_INTC0_IRQ_VECTOR(x) (64+13+(x))
+
+#define MCF5235_UART_USR_ERROR ( MCF5235_UART_USR_RB | \
+ MCF5235_UART_USR_FE | \
+ MCF5235_UART_USR_PE | \
+ MCF5235_UART_USR_OE )
+
+static int IntUartPollWrite(int minor, const char *buf, int len);
+static int IntUartInterruptWrite (int minor, const char *buf, int len);
+
+static void
+_BSP_null_char( char c )
+{
+ int level;
+
+ if (c == '\n')
+ _BSP_null_char('\r');
+ rtems_interrupt_disable(level);
+ while ( (MCF5235_UART_USR(CONSOLE_PORT) & MCF5235_UART_USR_TXRDY) == 0 )
+ continue;
+ MCF5235_UART_UTB(CONSOLE_PORT) = c;
+ while ( (MCF5235_UART_USR(CONSOLE_PORT) & MCF5235_UART_USR_TXRDY) == 0 )
+ continue;
+ rtems_interrupt_enable(level);
+}
+BSP_output_char_function_type BSP_output_char = _BSP_null_char;
+
+#define MAX_UART_INFO 3
+#define RX_BUFFER_SIZE 512
+
+struct IntUartInfoStruct
+{
+ int iomode;
+ volatile int uimr;
+ int baud;
+ int databits;
+ int parity;
+ int stopbits;
+ int hwflow;
+ int rx_in;
+ int rx_out;
+ char rx_buffer[RX_BUFFER_SIZE];
+ void *ttyp;
+};
+
+struct IntUartInfoStruct IntUartInfo[MAX_UART_INFO];
+
+static int GetBaud( int baudHandle )
+{
+ int baud = 9600;
+ switch ( baudHandle )
+ {
+ case B0:
+ baud = (int)0;
+ break;
+ case B1200:
+ baud = (int)1200;
+ break;
+ case B2400:
+ baud = (int)2400;
+ break;
+ case B4800:
+ baud = (int)4800;
+ break;
+ case B9600:
+ baud = (int)9600;
+ break;
+ case B19200:
+ baud = (int)19200;
+ break;
+ case B38400:
+ baud = (int)38400;
+ break;
+ case B57600:
+ baud = (int)57600;
+ break;
+ case B115200:
+ baud = (int)115200;
+ break;
+ }
+ return ( baud );
+}
+
+/***************************************************************************
+ Function : IntUartSet
+
+ Description : This updates the hardware UART settings.
+ ***************************************************************************/
+static void
+IntUartSet(int minor, int baud, int databits, int parity, int stopbits, int hwflow)
+{
+ int divisor;
+ unsigned32 clock_speed;
+ unsigned8 umr1 = 0;
+ unsigned8 umr2 = 0;
+ struct IntUartInfoStruct *info = &IntUartInfo[minor];
+ int level;
+
+ rtems_interrupt_disable(level);
+
+
+ /* disable interrupts, clear RTS line, and disable the UARTS */
+ MCF5235_UART_UIMR(minor) = 0;
+ MCF5235_UART_UOP0(minor) = 1;
+ MCF5235_UART_UCR(minor) = (MCF5235_UART_UCR_TX_DISABLED | MCF5235_UART_UCR_RX_DISABLED);
+
+ /* save the current values */
+ info->uimr = 0;
+ info->baud = baud;
+ info->databits = databits;
+ info->parity = parity;
+ info->stopbits = stopbits;
+ info->hwflow = hwflow;
+
+ clock_speed = get_CPU_clock_speed();
+ /* determine the baud divisor value */
+ divisor = ((clock_speed/2) / ( 32 * baud ));
+ if ( divisor < 2 )
+ divisor = 2;
+
+ /* check to see if doing hardware flow control */
+ if ( hwflow )
+ {
+ /* set hardware flow options */
+ umr1 |= MCF5235_UART_UMR_RXRTS;
+ umr2 |= MCF5235_UART_UMR_TXCTS;
+ }
+
+ /* determine the new umr values */
+ umr1 |= (parity | databits);
+ umr2 |= (stopbits);
+
+ /* reset the uart */
+ MCF5235_UART_UCR(minor) = MCF5235_UART_UCR_RESET_ERROR;
+ MCF5235_UART_UCR(minor) = MCF5235_UART_UCR_RESET_RX;
+ MCF5235_UART_UCR(minor) = MCF5235_UART_UCR_RESET_TX;
+
+ /* reset the uart mode register and update values */
+ MCF5235_UART_UCR(minor) = MCF5235_UART_UCR_RESET_MR;
+ MCF5235_UART_UMR(minor) = umr1;
+ MCF5235_UART_UMR(minor) = umr2;
+
+ /* set the baud rate values */
+ MCF5235_UART_UCSR(minor) = (MCF5235_UART_UCSR_RCS_SYS_CLK | MCF5235_UART_UCSR_TCS_SYS_CLK);
+ MCF5235_UART_UBG1(minor) = (divisor & 0xff00) >> 8;
+ MCF5235_UART_UBG2(minor) = (divisor & 0x00ff);
+
+ /* enable the uart */
+ MCF5235_UART_UCR(minor) = (MCF5235_UART_UCR_TX_ENABLED | MCF5235_UART_UCR_RX_ENABLED);
+
+ /* check to see if interrupts need to be enabled */
+ if ( info->iomode != TERMIOS_POLLED )
+ {
+ /* enable rx interrupts */
+ info->uimr |= MCF5235_UART_UIMR_FFULL;
+ MCF5235_UART_UIMR(minor) = info->uimr;
+ }
+
+ /* check to see if doing hardware flow control */
+ if ( hwflow )
+ {
+ /* assert the RTS line */
+ MCF5235_UART_UOP1(minor) = 1;
+ }
+
+ rtems_interrupt_enable(level);
+
+}
+
+
+/***************************************************************************
+ Function : IntUartSetAttributes
+
+ Description : This provides the hardware-dependent portion of tcsetattr().
+ value and sets it. At the moment this just sets the baud rate.
+
+ Note: The highest baudrate is 115200 as this stays within
+ an error of +/- 5% at 25MHz processor clock
+ ***************************************************************************/
+static int
+IntUartSetAttributes(int minor, const struct termios *t)
+{
+ /* set default index values */
+ int baud = (int)19200;
+ int databits = (int)MCF5235_UART_UMR_BC_8;
+ int parity = (int)MCF5235_UART_UMR_PM_NONE;
+ int stopbits = (int)MCF5235_UART_UMR_STOP_BITS_1;
+ int hwflow = (int)0;
+ struct IntUartInfoStruct *info = &IntUartInfo[minor];
+
+ /* check to see if input is valid */
+ if ( t != (const struct termios *)0 )
+ {
+ /* determine baud rate index */
+ baud = GetBaud( t->c_cflag & CBAUD );
+
+ /* determine data bits */
+ switch ( t->c_cflag & CSIZE )
+ {
+ case CS5:
+ databits = (int)MCF5235_UART_UMR_BC_5;
+ break;
+ case CS6:
+ databits = (int)MCF5235_UART_UMR_BC_6;
+ break;
+ case CS7:
+ databits = (int)MCF5235_UART_UMR_BC_7;
+ break;
+ case CS8:
+ databits = (int)MCF5235_UART_UMR_BC_8;
+ break;
+ }
+
+ /* determine if parity is enabled */
+ if ( t->c_cflag & PARENB )
+ {
+ if ( t->c_cflag & PARODD )
+ {
+ /* odd parity */
+ parity = (int)MCF5235_UART_UMR_PM_ODD;
+ }
+ else
+ {
+ /* even parity */
+ parity = (int)MCF5235_UART_UMR_PM_EVEN;
+ }
+ }
+
+ /* determine stop bits */
+ if ( t->c_cflag & CSTOPB )
+ {
+ /* two stop bits */
+ stopbits = (int)MCF5235_UART_UMR_STOP_BITS_2;
+ }
+
+ /* check to see if hardware flow control */
+ if ( t->c_cflag & CRTSCTS )
+ {
+ hwflow = 1;
+ }
+ }
+
+ /* check to see if values have changed */
+ if ( ( baud != info->baud ) ||
+ ( databits != info->databits ) ||
+ ( parity != info->parity ) ||
+ ( stopbits != info->stopbits ) ||
+ ( hwflow != info->hwflow ) )
+ {
+
+ /* call function to set values */
+ IntUartSet(minor, baud, databits, parity, stopbits, hwflow);
+ }
+
+ return( RTEMS_SUCCESSFUL );
+
+}
+
+/***************************************************************************
+ Function : IntUartInterruptHandler
+
+ Description : This is the interrupt handler for the internal uart. It
+ determines which channel caused the interrupt before queueing any received
+ chars and dequeueing chars waiting for transmission.
+ ***************************************************************************/
+static rtems_isr
+IntUartInterruptHandler(rtems_vector_number v)
+{
+ unsigned int chan = v - UART_INTC0_IRQ_VECTOR(0);
+ struct IntUartInfoStruct *info = &IntUartInfo[chan];
+
+ /* check to see if received data */
+ if ( MCF5235_UART_UISR(chan) & MCF5235_UART_UISR_RXRDY )
+ {
+ /* read data and put into the receive buffer */
+ while ( MCF5235_UART_USR(chan) & MCF5235_UART_USR_RXRDY )
+ {
+
+ if ( MCF5235_UART_USR(chan) & MCF5235_UART_USR_ERROR )
+ {
+ /* clear the error */
+ MCF5235_UART_UCR(chan) = MCF5235_UART_UCR_RESET_ERROR;
+ }
+ /* put data in rx buffer and check for errors */
+ info->rx_buffer[info->rx_in] = MCF5235_UART_URB(chan);
+
+ /* update buffer values */
+ info->rx_in++;
+
+ if ( info->rx_in >= RX_BUFFER_SIZE )
+ {
+ info->rx_in = 0;
+ }
+ }
+ /* Make sure the port has been opened */
+ if ( info->ttyp )
+ {
+
+ /* check to see if task driven */
+ if ( info->iomode == TERMIOS_TASK_DRIVEN )
+ {
+ /* notify rx task that rx buffer has data */
+ rtems_termios_rxirq_occured(info->ttyp);
+ }
+ else
+ {
+ /* Push up the received data */
+ rtems_termios_enqueue_raw_characters(info->ttyp, info->rx_buffer, info->rx_in);
+ info->rx_in = 0;
+ }
+ }
+ }
+
+ /* check to see if data needs to be transmitted */
+ if ( ( info->uimr & MCF5235_UART_UIMR_TXRDY ) &&
+ ( MCF5235_UART_UISR(chan) & MCF5235_UART_UISR_TXRDY ) )
+ {
+
+ /* disable tx interrupts */
+ info->uimr &= ~MCF5235_UART_UIMR_TXRDY;
+ MCF5235_UART_UIMR(chan) = info->uimr;
+
+ /* tell upper level that character has been sent */
+ if ( info->ttyp )
+ rtems_termios_dequeue_characters(info->ttyp, 1);
+ }
+}
+
+
+
+/***************************************************************************
+ Function : IntUartInitialize
+
+ Description : This initialises the internal uart hardware for all
+ internal uarts. If the internal uart is to be interrupt driven then the
+ interrupt vectors are hooked.
+ ***************************************************************************/
+static void
+IntUartInitialize(void)
+{
+ unsigned int chan;
+ struct IntUartInfoStruct *info;
+ rtems_isr_entry old_handler;
+ int level;
+
+ for ( chan = 0; chan < MAX_UART_INFO; chan++ )
+ {
+ info = &IntUartInfo[chan];
+
+ info->ttyp = NULL;
+ info->rx_in = 0;
+ info->rx_out = 0;
+ info->baud = -1;
+ info->databits = -1;
+ info->parity = -1;
+ info->stopbits = -1;
+ info->hwflow = -1;
+ info->iomode = TERMIOS_POLLED; //polled console io
+
+ MCF5235_UART_UACR(chan) = 0;
+ MCF5235_UART_UIMR(chan) = 0;
+ if ( info->iomode != TERMIOS_POLLED )
+ {
+ rtems_interrupt_catch (IntUartInterruptHandler,
+ UART_INTC0_IRQ_VECTOR(chan),
+ &old_handler);
+ }
+
+ /* set uart default values */
+ IntUartSetAttributes(chan, NULL);
+
+ /* unmask interrupt */
+ rtems_interrupt_disable(level);
+ switch(chan) {
+ case 0:
+ MCF5235_INTC0_ICR13 = MCF5235_INTC_ICR_IL(UART0_IRQ_LEVEL) |
+ MCF5235_INTC_ICR_IP(UART0_IRQ_PRIORITY);
+ MCF5235_INTC0_IMRL &= ~(MCF5235_INTC0_IMRL_INT13 |
+ MCF5235_INTC0_IMRL_MASKALL);
+ break;
+
+ case 1:
+ MCF5235_INTC0_ICR14 = MCF5235_INTC_ICR_IL(UART1_IRQ_LEVEL) |
+ MCF5235_INTC_ICR_IP(UART1_IRQ_PRIORITY);
+ MCF5235_INTC0_IMRL &= ~(MCF5235_INTC0_IMRL_INT14 |
+ MCF5235_INTC0_IMRL_MASKALL);
+ break;
+
+ case 2:
+ MCF5235_INTC0_ICR15 = MCF5235_INTC_ICR_IL(UART2_IRQ_LEVEL) |
+ MCF5235_INTC_ICR_IP(UART2_IRQ_PRIORITY);
+ MCF5235_INTC0_IMRL &= ~(MCF5235_INTC0_IMRL_INT15 |
+ MCF5235_INTC0_IMRL_MASKALL);
+ break;
+ }
+ rtems_interrupt_enable(level);
+
+ } /* of chan loop */
+
+
+} /* IntUartInitialise */
+
+
+/***************************************************************************
+ Function : IntUartInterruptWrite
+
+ Description : This writes a single character to the appropriate uart
+ channel. This is either called during an interrupt or in the user's task
+ to initiate a transmit sequence. Calling this routine enables Tx
+ interrupts.
+ ***************************************************************************/
+static int
+IntUartInterruptWrite (int minor, const char *buf, int len)
+{
+ int level;
+
+ rtems_interrupt_disable(level);
+
+ /* write out character */
+ MCF5235_UART_UTB(minor) = *buf;
+
+ /* enable tx interrupt */
+ IntUartInfo[minor].uimr |= MCF5235_UART_UIMR_TXRDY;
+ MCF5235_UART_UIMR(minor) = IntUartInfo[minor].uimr;
+
+ rtems_interrupt_enable(level);
+ return( 0 );
+}
+
+/***************************************************************************
+ Function : IntUartInterruptOpen
+
+ Description : This enables interrupts when the tty is opened.
+ ***************************************************************************/
+static int
+IntUartInterruptOpen(int major, int minor, void *arg)
+{
+ struct IntUartInfoStruct *info = &IntUartInfo[minor];
+
+ /* enable the uart */
+ MCF5235_UART_UCR(minor) = (MCF5235_UART_UCR_TX_ENABLED | MCF5235_UART_UCR_RX_ENABLED);
+
+ /* check to see if interrupts need to be enabled */
+ if ( info->iomode != TERMIOS_POLLED )
+ {
+ /* enable rx interrupts */
+ info->uimr |= MCF5235_UART_UIMR_FFULL;
+ MCF5235_UART_UIMR(minor) = info->uimr;
+ }
+
+ /* check to see if doing hardware flow control */
+ if ( info->hwflow )
+ {
+ /* assert the RTS line */
+ MCF5235_UART_UOP1(minor) = 1;
+ }
+
+ return( 0 );
+}
+
+
+
+/***************************************************************************
+ Function : IntUartInterruptClose
+
+ Description : This disables interrupts when the tty is closed.
+ ***************************************************************************/
+static int
+IntUartInterruptClose(int major, int minor, void *arg)
+{
+ struct IntUartInfoStruct *info = &IntUartInfo[minor];
+
+ /* disable the interrupts and the uart */
+ MCF5235_UART_UIMR(minor) = 0;
+ MCF5235_UART_UCR(minor) = (MCF5235_UART_UCR_TX_DISABLED | MCF5235_UART_UCR_RX_DISABLED);
+
+ /* reset values */
+ info->ttyp = NULL;
+ info->uimr = 0;
+ info->rx_in = 0;
+ info->rx_out = 0;
+
+ return( 0 );
+}
+
+/***************************************************************************
+ Function : IntUartTaskRead
+
+ Description : This reads all available characters from the internal uart
+ and places them into the termios buffer. The rx interrupts will be
+ re-enabled after all data has been read.
+ ***************************************************************************/
+static int
+IntUartTaskRead(int minor)
+{
+ char buffer[RX_BUFFER_SIZE];
+ int count;
+ int rx_in;
+ int index = 0;
+ struct IntUartInfoStruct *info = &IntUartInfo[minor];
+
+ /* determine number of values to copy out */
+ rx_in = info->rx_in;
+ if ( info->rx_out <= rx_in )
+ {
+ count = rx_in - info->rx_out;
+ }
+ else
+ {
+ count = (RX_BUFFER_SIZE - info->rx_out) + rx_in;
+ }
+
+ /* copy data into local buffer from rx buffer */
+ while ( ( index < count ) && ( index < RX_BUFFER_SIZE ) )
+ {
+ /* copy data byte */
+ buffer[index] = info->rx_buffer[info->rx_out];
+ index++;
+
+ /* increment rx buffer values */
+ info->rx_out++;
+ if ( info->rx_out >= RX_BUFFER_SIZE )
+ {
+ info->rx_out = 0;
+ }
+ }
+
+ /* check to see if buffer is not empty */
+ if ( count > 0 )
+ {
+ /* set characters into termios buffer */
+ rtems_termios_enqueue_raw_characters(info->ttyp, buffer, count);
+ }
+
+ return( EOF );
+}
+
+
+
+/***************************************************************************
+ Function : IntUartPollRead
+
+ Description : This reads a character from the internal uart. It returns
+ to the caller without blocking if not character is waiting.
+ ***************************************************************************/
+static int
+IntUartPollRead (int minor)
+{
+ if ( (MCF5235_UART_USR(minor) & MCF5235_UART_USR_RXRDY) == 0 )
+ return(-1);
+
+ return(MCF5235_UART_URB(minor));
+}
+
+
+/***************************************************************************
+ Function : IntUartPollWrite
+
+ Description : This writes out each character in the buffer to the
+ appropriate internal uart channel waiting till each one is sucessfully
+ transmitted.
+ ***************************************************************************/
+static int
+IntUartPollWrite (int minor, const char *buf, int len)
+{
+ /* loop over buffer */
+ while ( len-- )
+ {
+ /* block until we can transmit */
+ while ( (MCF5235_UART_USR(minor) & MCF5235_UART_USR_TXRDY) == 0 )
+ continue;
+ /* transmit data byte */
+ MCF5235_UART_UTB(minor) = *buf++;
+ }
+ return(0);
+}
+
+/***************************************************************************
+ Function : console_reserve_resources
+
+ Description : This reserves resources consumed by this driver. It passes
+ the request on to the termios subsystem.
+ ***************************************************************************/
+void console_reserve_resources( rtems_configuration_table *configuration )
+{
+ rtems_termios_reserve_resources (configuration, 1);
+}
+
+
+/***************************************************************************
+ Function : console_initialize
+
+ Description : This initialises termios, both sets of uart hardware before
+ registering /dev/tty devices for each channel and the system /dev/console.
+ ***************************************************************************/
+rtems_device_driver console_initialize(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void *arg )
+{
+ rtems_status_code status;
+
+
+ /* Set up TERMIOS */
+ rtems_termios_initialize ();
+
+ /* set io modes for the different channels and initialize device */
+ IntUartInfo[minor].iomode = TERMIOS_IRQ_DRIVEN;
+ IntUartInitialize();
+
+ /* Register the console port */
+ status = rtems_io_register_name ("/dev/console", major, CONSOLE_PORT);
+ if ( status != RTEMS_SUCCESSFUL )
+ {
+ rtems_fatal_error_occurred (status);
+ }
+
+ /* Register the other port */
+ if ( CONSOLE_PORT != 0 )
+ {
+ status = rtems_io_register_name ("/dev/tty00", major, 0);
+ if ( status != RTEMS_SUCCESSFUL )
+ {
+ rtems_fatal_error_occurred (status);
+ }
+ }
+ if ( CONSOLE_PORT != 1 )
+ {
+ status = rtems_io_register_name ("/dev/tty01", major, 1);
+ if ( status != RTEMS_SUCCESSFUL )
+ {
+ rtems_fatal_error_occurred (status);
+ }
+ }
+
+ return(RTEMS_SUCCESSFUL);
+}
+
+/***************************************************************************
+ Function : console_open
+
+ Description : This actually opens the device depending on the minor
+ number set during initialisation. The device specific access routines are
+ passed to termios when the devices is opened depending on whether it is
+ polled or not.
+ ***************************************************************************/
+rtems_device_driver console_open(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg)
+{
+ rtems_status_code status = RTEMS_INVALID_NUMBER;
+ rtems_libio_open_close_args_t *args = (rtems_libio_open_close_args_t *)arg;
+ struct IntUartInfoStruct *info;
+
+ static const rtems_termios_callbacks IntUartPollCallbacks = {
+ NULL, /* firstOpen */
+ NULL, /* lastClose */
+ IntUartPollRead, /* pollRead */
+ IntUartPollWrite, /* write */
+ IntUartSetAttributes, /* setAttributes */
+ NULL, /* stopRemoteTx */
+ NULL, /* startRemoteTx */
+ TERMIOS_POLLED /* mode */
+ };
+ static const rtems_termios_callbacks IntUartIntrCallbacks = {
+ IntUartInterruptOpen, /* firstOpen */
+ IntUartInterruptClose, /* lastClose */
+ NULL, /* pollRead */
+ IntUartInterruptWrite, /* write */
+ IntUartSetAttributes, /* setAttributes */
+ NULL, /* stopRemoteTx */
+ NULL, /* startRemoteTx */
+ TERMIOS_IRQ_DRIVEN /* mode */
+ };
+
+ static const rtems_termios_callbacks IntUartTaskCallbacks = {
+ IntUartInterruptOpen, /* firstOpen */
+ IntUartInterruptClose, /* lastClose */
+ IntUartTaskRead, /* pollRead */
+ IntUartInterruptWrite, /* write */
+ IntUartSetAttributes, /* setAttributes */
+ NULL, /* stopRemoteTx */
+ NULL, /* startRemoteTx */
+ TERMIOS_TASK_DRIVEN /* mode */
+ };
+
+ /* open the port depending on the minor device number */
+ if ( ( minor >= 0 ) && ( minor < MAX_UART_INFO ) )
+ {
+ info = &IntUartInfo[minor];
+ switch ( info->iomode )
+ {
+ case TERMIOS_POLLED:
+ status = rtems_termios_open(major, minor, arg, &IntUartPollCallbacks);
+ break;
+ case TERMIOS_IRQ_DRIVEN:
+ status = rtems_termios_open(major, minor, arg, &IntUartIntrCallbacks);
+ info->ttyp = args->iop->data1;
+ break;
+ case TERMIOS_TASK_DRIVEN:
+ status = rtems_termios_open(major, minor, arg, &IntUartTaskCallbacks);
+ info->ttyp = args->iop->data1;
+ break;
+ }
+ }
+
+ return( status );
+}
+
+/***************************************************************************
+ Function : console_close
+
+ Description : This closes the device via termios
+ ***************************************************************************/
+rtems_device_driver console_close(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg)
+{
+ return(rtems_termios_close (arg));
+}
+
+/******************
+*********************************************************
+ Function : console_read
+
+ Description : Read from the device via termios
+ ***************************************************************************/
+rtems_device_driver console_read(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg)
+{
+ return(rtems_termios_read (arg));
+}
+
+/***************************************************************************
+ Function : console_write
+
+ Description : Write to the device via termios
+ ***************************************************************************/
+rtems_device_driver console_write(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg)
+{
+ return(rtems_termios_write (arg));
+}
+
+/***************************************************************************
+ Function : console_ioctl
+
+ Description : Pass the IOCtl call to termios
+ ***************************************************************************/
+rtems_device_driver console_control(
+ rtems_device_major_number major,
+ rtems_device_minor_number minor,
+ void * arg)
+{
+ return( rtems_termios_ioctl (arg) );
+}
+int DEBUG_OUTCHAR(int c)
+{
+ if(c == '\n')
+ DEBUG_OUTCHAR('\r');
+ _BSP_null_char(c);
+ return c;
+}
+void DEBUG_OUTSTR(const char *msg)
+{
+ while (*msg)
+ DEBUG_OUTCHAR(*msg++);
+}
+void DEBUG_OUTNUM(int i)
+{
+ int n;
+ static const char map[] = "0123456789ABCDEF";
+ DEBUG_OUTCHAR(' ');
+ for (n = 28 ; n >= 0 ; n -= 4)
+ DEBUG_OUTCHAR(map[(i >> n) & 0xF]);
+}