bsps: Move console drivers to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

1 files changed, 835 insertions, 0 deletions

diff --git a/bsps/powerpc/gen5200/console/console.c b/bsps/powerpc/gen5200/console/console.c
new file mode 100644
index 0000000000..d7325032c4
--- /dev/null
+++ b/bsps/powerpc/gen5200/console/console.c
@@ -0,0 +1,835 @@
+/*===============================================================*\
+| Project: RTEMS generic MPC5200 BSP                              |
++-----------------------------------------------------------------+
+| Partially based on the code references which are named below.   |
+| Adaptions, modifications, enhancements and any recent parts of  |
+| the code are:                                                   |
+|                    Copyright (c) 2005                           |
+|                    Embedded Brains GmbH                         |
+|                    Obere Lagerstr. 30                           |
+|                    D-82178 Puchheim                             |
+|                    Germany                                      |
+|                    rtems@embedded-brains.de                     |
++-----------------------------------------------------------------+
+| The license and distribution terms for this file may be         |
+| found in the file LICENSE in this distribution or at            |
+|                                                                 |
+| http://www.rtems.org/license/LICENSE.                           |
+|                                                                 |
++-----------------------------------------------------------------+
+| this file contains the console driver functions                 |
+\*===============================================================*/
+/***********************************************************************/
+/*                                                                     */
+/*   Module:       console.c                                           */
+/*   Date:         07/17/2003                                          */
+/*   Purpose:      RTEMS MPC5x00 console driver                        */
+/*                                                                     */
+/*---------------------------------------------------------------------*/
+/*                                                                     */
+/*   Description:                                                      */
+/*                                                                     */
+/*  The PSCs of mpc5200 are assigned as follows                        */
+/*                                                                     */
+/*              Channel     Device      Minor   Note                   */
+/*                PSC1      /dev/tty0      0                           */
+/*                PSC2      /dev/tty1      1                           */
+/*                PSC3      /dev/tty2      2                           */
+/*                                                                     */
+/*---------------------------------------------------------------------*/
+/*                                                                     */
+/*   Code                                                              */
+/*   References:   Serial driver for MPC8260ads                        */
+/*   Module:       console-generic.c                                   */
+/*   Project:      RTEMS 4.6.0pre1 / MPC8260ads BSP                    */
+/*   Version       1.3                                                 */
+/*   Date:         2002/11/04                                          */
+/*                                                                     */
+/*   Author(s) / Copyright(s):                                         */
+/*                                                                     */
+/*   Author: Jay Monkman (jmonkman@frasca.com)                         */
+/*   Copyright (C) 1998 by Frasca International, Inc.                  */
+/*                                                                     */
+/*   Derived from c/src/lib/libbsp/m68k/gen360/console/console.c       */
+/*   written by:                                                       */
+/*   W. Eric Norum                                                     */
+/*   Saskatchewan Accelerator Laboratory                               */
+/*   University of Saskatchewan                                        */
+/*   Saskatoon, Saskatchewan, CANADA                                   */
+/*   eric@skatter.usask.ca                                             */
+/*                                                                     */
+/*   COPYRIGHT (c) 1989-2008.                                          */
+/*   On-Line Applications Research Corporation (OAR).                  */
+/*                                                                     */
+/*   Modifications by Darlene Stewart <Darlene.Stewart@iit.nrc.ca>     */
+/*   and Charles-Antoine Gauthier <charles.gauthier@iit.nrc.ca>        */
+/*   Copyright (c) 1999, National Research Council of Canada           */
+/*                                                                     */
+/*   Modifications by Andy Dachs <a.dachs@sstl.co.uk> to add MPC8260   */
+/*   support.                                                          */
+/*   Copyright (c) 2001, Surrey Satellite Technology Ltd               */
+/*                                                                     */
+/*   The license and distribution terms for this file may be           */
+/*   found in the file LICENSE in this distribution or at              */
+/*   http://www.rtems.org/license/LICENSE.                        */
+/*                                                                     */
+/*---------------------------------------------------------------------*/
+/*                                                                     */
+/*   Partially based on the code references which are named above.     */
+/*   Adaptions, modifications, enhancements and any recent parts of    */
+/*   the code are under the right of                                   */
+/*                                                                     */
+/*         IPR Engineering, Dachauer Straße 38, D-80335 München        */
+/*                        Copyright(C) 2003                            */
+/*                                                                     */
+/*---------------------------------------------------------------------*/
+/*                                                                     */
+/*   IPR Engineering makes no representation or warranties with        */
+/*   respect to the performance of this computer program, and          */
+/*   specifically disclaims any responsibility for any damages,        */
+/*   special or consequential, connected with the use of this program. */
+/*                                                                     */
+/*---------------------------------------------------------------------*/
+/*                                                                     */
+/*   Version history:  1.0                                             */
+/*                                                                     */
+/***********************************************************************/
+
+#include <assert.h>
+#include <string.h>
+
+#include <rtems.h>
+#include <bsp/mpc5200.h>
+#include <bsp.h>
+#include <bsp/irq.h>
+
+#include <rtems/console.h>
+#include <rtems/bspIo.h>
+#include <rtems/libio.h>
+#include <rtems/termiostypes.h>
+
+
+#define NUM_PORTS       MPC5200_PSC_NO
+
+#define PSC1_MINOR      0
+#define PSC2_MINOR      1
+#define PSC3_MINOR      2
+#define PSC4_MINOR      3
+#define PSC5_MINOR      4
+#define PSC6_MINOR      5
+
+uint32_t mpc5200_uart_avail_mask = BSP_UART_AVAIL_MASK;
+
+#if defined(UARTS_USE_TERMIOS_INT)
+  uint8_t psc_minor_to_irqname[NUM_PORTS] = {
+     BSP_SIU_IRQ_PSC1,
+     BSP_SIU_IRQ_PSC2,
+     BSP_SIU_IRQ_PSC3,
+     BSP_SIU_IRQ_PSC4,
+     BSP_SIU_IRQ_PSC5,
+     BSP_SIU_IRQ_PSC6
+  };
+
+  static int mpc5200_psc_irqname_to_minor(int name) {
+    int      minor;
+    uint8_t *chrptr;
+
+    chrptr = memchr(psc_minor_to_irqname, name, sizeof(psc_minor_to_irqname));
+    if (chrptr != NULL) {
+      minor = chrptr - psc_minor_to_irqname;
+    } else {
+      minor = -1;
+    }
+    return minor;
+  }
+#endif
+
+static void A_BSP_output_char(char c);
+static int A_BSP_get_char(void);
+BSP_output_char_function_type BSP_output_char = A_BSP_output_char;
+
+BSP_polling_getchar_function_type BSP_poll_char = A_BSP_get_char;
+
+/* Used to handle premature outputs of printk */
+bool console_initialized = false;
+
+/* per channel info structure */
+struct per_channel_info {
+  uint16_t shadow_imr;
+  uint8_t shadow_mode1;
+  uint8_t shadow_mode2;
+  int cur_tx_len;
+  int rx_interrupts;
+  int tx_interrupts;
+  int rx_characters;
+  int tx_characters;
+  int breaks_detected;
+  int framing_errors;
+  int parity_errors;
+  int overrun_errors;
+};
+
+/* Used to handle more than one channel */
+struct per_channel_info channel_info[NUM_PORTS];
+
+/*
+ * XXX: there are only 6 PSCs, but PSC6 has an extra register gap
+ *      from PSC5, therefore we instantiate seven(!) PSC register sets
+ */
+uint8_t psc_minor_to_regset[MPC5200_PSC_NO] = {0,1,2,3,4,6};
+
+/* Used to track termios private data for callbacks */
+struct rtems_termios_tty *ttyp[NUM_PORTS];
+
+static int mpc5200_psc_setAttributes(
+  int                   minor,
+  const struct termios *t
+)
+{
+  int baud;
+  uint8_t csize=0, cstopb, parenb, parodd;
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  /* Baud rate */
+  baud = rtems_termios_baud_to_number(t->c_ospeed);
+  if (baud > 0) {
+   /*
+    * Calculate baud rate
+    * round divider to nearest!
+    */
+    baud = (IPB_CLOCK + baud *16) / (baud * 32);
+  }
+
+  /* Number of data bits */
+  switch ( t->c_cflag & CSIZE ) {
+    case CS5:     csize = 0x00;  break;
+    case CS6:     csize = 0x01;  break;
+    case CS7:     csize = 0x02;  break;
+    case CS8:     csize = 0x03;  break;
+  }
+
+  /* Stop bits */
+  if(csize == 0) {
+    if(t->c_cflag & CSTOPB)
+      cstopb = 0x0F;           /* Two stop bits */
+    else
+      cstopb = 0x00;           /* One stop bit */
+  } else {
+    if(t->c_cflag & CSTOPB)
+      cstopb = 0x0F;           /* Two stop bits */
+    else
+      cstopb = 0x07;           /* One stop bit */
+  }
+
+  /* Parity */
+  if (t->c_cflag & PARENB)
+    parenb = 0x00;             /* Parity enabled on Tx and Rx */
+  else
+    parenb = 0x10;             /* No parity on Tx and Rx */
+
+  if (t->c_cflag & PARODD)
+    parodd = 0x04;             /* Odd parity */
+  else
+    parodd = 0x00;
+
+ /*
+  * Set upper timer counter
+  */
+  psc->ctur = (uint8_t) (baud >> 8);
+
+ /*
+  * Set lower timer counter
+  */
+  psc->ctlr = (uint8_t) baud;
+
+ /*
+  * Reset mode pointer
+  */
+  psc->cr = ((1 << 4) << 8);
+
+ /*
+  * Set mode1 register
+  */
+  channel_info[minor].shadow_mode1 &= ~(0x1F);
+  psc->mr = channel_info[minor].shadow_mode1 | (csize | parenb | parodd);
+
+ /*
+  * Set mode2 register
+  */
+  channel_info[minor].shadow_mode2 &= ~(0x0F);
+  psc->mr = channel_info[minor].shadow_mode2 | cstopb;
+
+  return 0;
+
+}
+
+
+static int mpc5200_uart_setAttributes(int minor, const struct termios *t)
+{
+  /*
+   * Check that port number is valid
+   */
+  if( (minor < PSC1_MINOR) || (minor > NUM_PORTS-1) )
+    return 0;
+
+  return mpc5200_psc_setAttributes(minor, t);
+
+}
+
+#ifdef UARTS_USE_TERMIOS_INT
+/*
+ * Interrupt handlers
+ */
+static void mpc5200_psc_interrupt_handler(rtems_irq_hdl_param handle)
+{
+  unsigned char c;
+  uint16_t isr;
+  int minor = (int)handle;
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  /*
+   * get content of psc interrupt status
+   */
+  isr = psc->isr_imr;
+
+  /*
+   * Character received?
+   */
+  if (isr & ISR_RX_RDY_FULL) {
+
+    channel_info[minor].rx_interrupts++;
+
+
+#ifndef SINGLE_CHAR_MODE
+    while(psc->rfnum) {
+#endif
+      /*
+       * get the character
+       */
+       c = (psc->rb_tb >> 24);
+
+      if (ttyp[minor] != NULL) {
+        rtems_termios_enqueue_raw_characters(
+           (void *)ttyp[minor], (char *)&c, (int)1);
+        channel_info[minor].rx_characters++;
+      }
+
+#ifndef SINGLE_CHAR_MODE
+    }
+#endif
+
+  }
+
+  /*
+   * Character transmitted ?
+   */
+  if (isr & ISR_TX_RDY & channel_info[minor].shadow_imr) {
+    channel_info[minor].tx_interrupts++;
+
+    if (ttyp[minor] != NULL) {
+      #ifndef SINGLE_CHAR_MODE
+        rtems_termios_dequeue_characters(
+           (void *)ttyp[minor], channel_info[minor].cur_tx_len);
+        channel_info[minor].tx_characters += channel_info[minor].cur_tx_len;
+      #else
+        rtems_termios_dequeue_characters((void *)ttyp[minor], (int)1);
+        channel_info[minor].tx_characters++;
+      #endif
+    }
+  }
+
+  if(isr & ISR_ERROR) {
+    if(isr & ISR_RB)
+      channel_info[minor].breaks_detected++;
+    if(isr & ISR_FE)
+      channel_info[minor].framing_errors++;
+    if(isr & ISR_PE)
+      channel_info[minor].parity_errors++;
+    if(isr & ISR_OE)
+      channel_info[minor].overrun_errors++;
+
+    /*
+     *  Reset error status
+     */
+    psc->cr = ((4 << 4) << 8);
+  }
+}
+
+static void mpc5200_psc_enable(
+  const rtems_irq_connect_data* ptr
+)
+{
+  struct mpc5200_psc *psc;
+  int minor =  mpc5200_psc_irqname_to_minor(ptr->name);
+
+  if (minor >= 0) {
+    psc = (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+    psc->isr_imr = channel_info[minor].shadow_imr |=
+      (IMR_RX_RDY_FULL | IMR_TX_RDY);
+  }
+}
+
+
+static void mpc5200_psc_disable(
+  const rtems_irq_connect_data* ptr
+)
+{
+  struct mpc5200_psc *psc;
+  int minor =  mpc5200_psc_irqname_to_minor(ptr->name);
+
+  if (minor >= 0) {
+    psc = (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+    psc->isr_imr = channel_info[minor].shadow_imr &=
+      ~(IMR_RX_RDY_FULL | IMR_TX_RDY);
+  }
+}
+
+static int mpc5200_psc_isOn(
+  const rtems_irq_connect_data* ptr
+)
+{
+  struct mpc5200_psc *psc;
+  int minor =  mpc5200_psc_irqname_to_minor(ptr->name);
+
+  if (minor >= 0) {
+    psc = (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+    return ((psc->isr_imr & IMR_RX_RDY_FULL) & (psc->isr_imr & IMR_TX_RDY));
+  }
+  return false;
+}
+
+
+static rtems_irq_connect_data consoleIrqData;
+#endif
+
+static void mpc5200_uart_psc_initialize(
+  int minor
+)
+{
+  uint32_t baud_divider;
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  /*
+   * Check that minor number is valid
+   */
+  if ((minor < PSC1_MINOR) || (minor >= (PSC1_MINOR + NUM_PORTS)))
+    return;
+
+  /*
+   * Clear per channel info
+   */
+  memset((void *)&channel_info[minor], 0, sizeof(struct per_channel_info));
+
+  /*
+   * Reset receiver and transmitter
+   */
+  psc->cr = ((2 << 4) << 8);
+  psc->cr = ((3 << 4) << 8);
+
+  /*
+   * Reset mode pointer
+   */
+  psc->cr = ((1 << 4) << 8);
+
+  /*
+   * Set clock select register
+   */
+  psc->sr_csr = 0;
+
+  /*
+   * Set mode1 register
+   */
+  psc->mr = channel_info[minor].shadow_mode1 = 0x33; /* 8Bit / no parity */
+
+  /*
+   * Set mode2 register
+   */
+  psc->mr = channel_info[minor].shadow_mode2 = 7; /* 1 stop bit */
+
+  /*
+   * Set rx FIFO alarm
+   */
+  psc->rfalarm = RX_FIFO_SIZE - 1;
+
+  /*
+   * Set tx FIFO alarm
+   */
+  psc->tfalarm = 1;
+
+  baud_divider =
+    (IPB_CLOCK + GEN5200_CONSOLE_BAUD *16) / (GEN5200_CONSOLE_BAUD * 32);
+
+  /*
+   * Set upper timer counter
+   */
+  psc->ctur = baud_divider >> 16;
+
+  /*
+   * Set lower timer counter
+   */
+
+  psc->ctlr = baud_divider & 0x0000ffff;
+
+  /*
+   * Disable Frame mode / set granularity 0
+   */
+  psc->tfcntl = 0;
+
+#ifdef UARTS_USE_TERMIOS_INT
+  /*
+   * Tie interrupt dependent routines
+   */
+  consoleIrqData.on     = mpc5200_psc_enable;
+  consoleIrqData.off    = mpc5200_psc_disable;
+  consoleIrqData.isOn   = mpc5200_psc_isOn;
+  consoleIrqData.handle = (rtems_irq_hdl_param)minor;
+  consoleIrqData.hdl    = (rtems_irq_hdl)mpc5200_psc_interrupt_handler;
+
+  /*
+   * Tie interrupt handler
+   */
+  consoleIrqData.name = psc_minor_to_irqname[minor];
+
+  /*
+   * Install rtems irq handler
+   */
+  assert(BSP_install_rtems_irq_handler(&consoleIrqData) == 1);
+#endif
+
+  /*
+   * Reset rx fifo errors Error/UF/OF
+   */
+  psc->rfstat |= 0x70;
+
+  /*
+   * Reset tx fifo errors Error/UF/OF
+   */
+  psc->tfstat |= 0x70;
+
+#ifdef UARTS_USE_TERMIOS_INT
+  /*
+   * Unmask receive interrupt
+   */
+  psc->isr_imr = channel_info[minor].shadow_imr = IMR_RX_RDY_FULL;
+#endif
+
+  /*
+   * Enable receiver
+   */
+  psc->cr = ((1 << 0) << 8);
+
+  /*
+   * Enable transmitter
+   */
+  psc->cr = ((1 << 2) << 8);
+}
+
+
+static int mpc5200_uart_pollRead(
+  int minor
+)
+{
+  unsigned char c;
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  if (psc->sr_csr & (1 << 8))
+     c = (psc->rb_tb >> 24);
+  else
+     return -1;
+
+  return c;
+}
+
+
+static ssize_t mpc5200_uart_pollWrite(
+  int minor,
+  const char *buf,
+  size_t len
+)
+{
+  size_t retval = len;
+  const char *tmp_buf = buf;
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  while(len--) {
+    while(!(psc->sr_csr & (1 << 11)))
+      continue;
+
+    /*rtems_cache_flush_multiple_data_lines( (void *)buf, 1);*/
+
+    psc->rb_tb = (*tmp_buf << 24);
+
+    tmp_buf++;
+
+  }
+  return retval;
+
+}
+
+static ssize_t mpc5200_uart_write(
+  int         minor,
+  const char *buf,
+  size_t len
+)
+{
+  struct mpc5200_psc *psc =
+    (struct mpc5200_psc *)(&mpc5200.psc[psc_minor_to_regset[minor]]);
+
+  if (len > 0) {
+    int frame_len = len;
+    const char *frame_buf = buf;
+
+   /*
+    * Check tx fifo space
+    */
+    if(len > (TX_FIFO_SIZE - psc->tfnum))
+      frame_len = TX_FIFO_SIZE - psc->tfnum;
+
+#ifndef SINGLE_CHAR_MODE
+    channel_info[minor].cur_tx_len = frame_len;
+#else
+    frame_len = 1;
+#endif
+
+   /*rtems_cache_flush_multiple_data_lines( (void *)frame_buf, frame_len);*/
+
+    while (frame_len--)
+      /* perform byte write to avoid extra NUL characters */
+      (* (volatile char *)&(psc->rb_tb)) = *frame_buf++;
+
+   /*
+    * unmask interrupt
+    */
+    psc->isr_imr = channel_info[minor].shadow_imr |= IMR_TX_RDY;
+  } else {
+    /*
+     * mask interrupt
+     */
+    psc->isr_imr = channel_info[minor].shadow_imr &= ~(IMR_TX_RDY);
+  }
+
+  return 0;
+}
+
+/*
+ *  Print functions prototyped in bspIo.h
+ */
+static void A_BSP_output_char(
+  char c
+)
+{
+  /*
+   *  If we are using U-Boot, then the console is already initialized
+   *  and we can just poll bytes out at any time.
+   */
+  #if !defined(HAS_UBOOT)
+    if (console_initialized == false)
+     return;
+  #endif
+
+#define PRINTK_WRITE mpc5200_uart_pollWrite
+
+    PRINTK_WRITE(PRINTK_MINOR, &c, 1 );
+}
+
+static int A_BSP_get_char(void)
+{
+  /*
+   *  If we are using U-Boot, then the console is already initialized
+   *  and we can just poll bytes in at any time.
+   */
+  #if !defined(HAS_UBOOT)
+    if (console_initialized == false)
+     return -1;
+  #endif
+
+  return mpc5200_uart_pollRead(0);
+}
+
+/*
+ ***************
+ * BOILERPLATE *
+ ***************
+ *
+ *  All these functions are prototyped in rtems/c/src/lib/include/console.h.
+ */
+
+/*
+ * Initialize and register the device
+ */
+rtems_device_driver console_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *arg
+)
+{
+  rtems_status_code status;
+  rtems_device_minor_number console_minor;
+  char dev_name[] = "/dev/ttyx";
+  uint32_t tty_num = 0;
+  bool first = true;
+
+  /*
+   * Always use and set up TERMIOS
+   */
+  console_minor = PSC1_MINOR;
+  rtems_termios_initialize();
+
+  for (console_minor = PSC1_MINOR;
+       console_minor < PSC1_MINOR + NUM_PORTS;
+       console_minor++) {
+     /*
+      * check, whether UART is available for this board
+      */
+    if (0 != ((1 << console_minor) & (mpc5200_uart_avail_mask))) {
+      /*
+       * Do device-specific initialization and registration for Motorola IceCube
+       */
+      mpc5200_uart_psc_initialize(console_minor); /* /dev/tty0 */
+      dev_name[8] = '0' + tty_num;
+      status = rtems_io_register_name (dev_name, major, console_minor);
+      assert(status == RTEMS_SUCCESSFUL);
+
+      #ifdef MPC5200_PSC_INDEX_FOR_GPS_MODULE
+        if (console_minor == MPC5200_PSC_INDEX_FOR_GPS_MODULE) {
+          status = rtems_io_register_name("/dev/gps", major, console_minor);
+          assert(status == RTEMS_SUCCESSFUL);
+        }
+      #endif
+
+      if (first) {
+        first = false;
+
+        /* Now register the RTEMS console */
+        status = rtems_io_register_name ("/dev/console", major, console_minor);
+        assert(status == RTEMS_SUCCESSFUL);
+      }
+
+      tty_num++;
+    }
+  }
+
+  console_initialized = true;
+  return RTEMS_SUCCESSFUL;
+}
+
+/*
+ * Open the device
+ */
+rtems_device_driver console_open(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  rtems_libio_open_close_args_t *args = arg;
+  rtems_status_code sc;
+
+#ifdef UARTS_USE_TERMIOS_INT
+  static const rtems_termios_callbacks intrCallbacks = {
+    NULL,                           /* firstOpen */
+    NULL,                           /* lastClose */
+    NULL,                           /* pollRead */
+    mpc5200_uart_write,             /* write */
+    mpc5200_uart_setAttributes,     /* setAttributes */
+    NULL,
+    NULL,
+    1                               /* outputUsesInterrupts */
+  };
+#else
+  static const rtems_termios_callbacks pollCallbacks = {
+    NULL,                           /* firstOpen */
+    NULL,                           /* lastClose */
+    mpc5200_uart_pollRead,          /* pollRead */
+    mpc5200_uart_pollWrite,         /* write */
+    mpc5200_uart_setAttributes,     /* setAttributes */
+    NULL,
+    NULL,
+    0                               /* output don't use Interrupts */
+  };
+#endif
+
+  if(minor > NUM_PORTS - 1)
+    return RTEMS_INVALID_NUMBER;
+
+#ifdef UARTS_USE_TERMIOS_INT
+  sc = rtems_termios_open( major, minor, arg, &intrCallbacks );
+#else                               /* RTEMS polled I/O with termios */
+  sc = rtems_termios_open( major, minor, arg, &pollCallbacks );
+#endif
+
+  ttyp[minor] = args->iop->data1;   /* Keep cookie returned by termios_open */
+
+  if ( !sc )
+    rtems_termios_set_initial_baud( ttyp[minor], GEN5200_CONSOLE_BAUD );
+
+  return sc;
+}
+
+
+/*
+ * Close the device
+ */
+rtems_device_driver console_close(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  if ( minor > NUM_PORTS-1 )
+    return RTEMS_INVALID_NUMBER;
+
+  ttyp[minor] = NULL; /* mark for int handler: tty no longer open */
+
+  return rtems_termios_close( arg );
+}
+
+
+/*
+ * Read from the device
+ */
+rtems_device_driver console_read(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  if(minor > NUM_PORTS-1)
+    return RTEMS_INVALID_NUMBER;
+
+  return rtems_termios_read(arg);
+}
+
+/*
+ * Write to the device
+ */
+rtems_device_driver console_write(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  if ( minor > NUM_PORTS-1 )
+    return RTEMS_INVALID_NUMBER;
+  return rtems_termios_write(arg);
+}
+
+/*
+ * Handle ioctl request.
+ */
+rtems_device_driver console_control(
+  rtems_device_major_number  major,
+  rtems_device_minor_number  minor,
+  void                      *arg
+)
+{
+  if ( minor > NUM_PORTS-1 )
+    return RTEMS_INVALID_NUMBER;
+
+  return rtems_termios_ioctl(arg);
+}