#define I_WANT_TERMIOS /* *  BSP specific Serial I/O Functions for the eth-comm BSP * * This file contains the BSP specific functions for  * performing serial I/O. These are the functions * RTEMS uses (the 6 listed in the device driver  * structure) * * The SCCs and SMCs are assigned as follows * *   Channel     Device      Minor   Termios *    SMC1      /dev/tty0      0       no *    SMC2      /dev/tty1      1       no *    SCC1      ethernet *    SCC2      /dev/console   3       yes *    SCC3      /dev/tty3      4       no *    SCC4      /dev/tty4      5       no * * FIXME: This should use termios for /dev/console, but it doesn't *  appear to work correctly yet. On startup, with termios enabled, *  the board hangs for a few seconds before running correctly * * Author: Jay Monkman (jmonkman@frasca.com)  * Copyright (C) 1998 by Frasca International, Inc. * *  $Id: console.c,v 1.7 2002/11/01 21:54:20 joel Exp $ */#include <bsp.h>                /* Must be before libio.h */#include <rtems/libio.h>#include <termios.h>#include <rtems/bspIo.h>extern void rtems_panic(char *,int);static void _BSP_null_char( char c ) {return;}BSP_output_char_function_type BSP_output_char = _BSP_null_char;rtems_device_driver console_initialize(rtems_device_major_number major,                                       rtems_device_minor_number minor,                                       void *arg){  rtems_status_code status;  #ifdef I_WANT_TERMIOS  /*   * Set up TERMIOS (for /dev/console)   */  rtems_termios_initialize();#endif  /*   *  Do common initialization.   */  m8xx_uart_initialize();  /*   * Do device-specific initialization   */  m8xx_uart_smc_initialize(SMC1_MINOR); /* /dev/tty0 */  m8xx_uart_smc_initialize(SMC2_MINOR); /* /dev/tty1 */                               m8xx_uart_scc_initialize(SCC2_MINOR); /* /dev/tty2    */  m8xx_uart_scc_initialize(SCC3_MINOR); /* /dev/tty3    */  m8xx_uart_scc_initialize(SCC4_MINOR); /* /dev/tty4    */    /*   * Register the devices   */  status = rtems_io_register_name ("/dev/console", major, SCC2_MINOR);  if (status != RTEMS_SUCCESSFUL)    rtems_fatal_error_occurred (status);  status = rtems_io_register_name ("/dev/tty0", major, SMC1_MINOR);  if (status != RTEMS_SUCCESSFUL)    rtems_fatal_error_occurred (status);  status = rtems_io_register_name ("/dev/tty1", major, SMC2_MINOR);  if (status != RTEMS_SUCCESSFUL)    rtems_fatal_error_occurred (status);  status = rtems_io_register_name ("/dev/tty3", major, SCC3_MINOR);  if (status != RTEMS_SUCCESSFUL)    rtems_fatal_error_occurred (status);  status = rtems_io_register_name ("/dev/tty4", major, SCC4_MINOR);  if (status != RTEMS_SUCCESSFUL)    rtems_fatal_error_occurred (status);  return RTEMS_SUCCESSFUL;} rtems_device_driver console_open(rtems_device_major_number major,                                 rtems_device_minor_number minor,                                 void *arg){  volatile m8xxSCCRegisters_t *sccregs;#ifdef I_WANT_TERMIOS  static const rtems_termios_callbacks sccPollCallbacks = {    NULL,                       /* firstOpen */    NULL,                       /* lastClose */    m8xx_uart_pollRead,        /* pollRead */    m8xx_uart_pollWrite,       /* write */    m8xx_uart_setAttributes,    /* setAttributes */    NULL,                       /* stopRemoteTx */    NULL,                       /* startRemoteTx */    0                           /* outputUsesInterrupts */  };#endif /* I_WANT_TERMIOS */  sccregs = 0;  switch (minor) {  case 0:    m8xx.smc1.smcm = 1;           /* Enable SMC1 RX interrupts */    break;  case 1:    m8xx.smc2.smcm = 1;           /* Enable SMC2 RX interrupts */    break;  case 2:    sccregs = &m8xx.scc1;    break;  case 3:     sccregs = &m8xx.scc2;    break;  case 4:    sccregs = &m8xx.scc3;    break;  case 5:    sccregs = &m8xx.scc4;    break;  default:    rtems_panic ("CONSOLE: bad minor number", 0);  }  if (sccregs)    sccregs->sccm=0x3;#ifdef I_WANT_TERMIOS  if (minor == SCC2_MINOR) {    return rtems_termios_open (major, minor, arg, &sccPollCallbacks);  }  else {     return RTEMS_SUCCESSFUL;  }#else  return RTEMS_SUCCESSFUL;#endif}rtems_device_driver console_close(rtems_device_major_number major,                                  rtems_device_minor_number minor,                                  void *arg){#ifdef I_WANT_TERMIOS  if (minor == SCC2_MINOR) {    return rtems_termios_close (arg);  }  else {    return RTEMS_SUCCESSFUL;  }#else  return RTEMS_SUCCESSFUL;#endif}rtems_device_driver console_read(rtems_device_major_number major,                                 rtems_device_minor_number minor,                                 void *arg){#ifdef I_WANT_TERMIOS  /*  if (minor == SCC2_MINOR) {  */    return rtems_termios_read(arg);  /*  }  else {    return m8xx_console_read(major, minor, arg);  }  */#else  return m8xx_console_read(major, minor, arg);#endif}rtems_device_driver console_write(rtems_device_major_number major,                                  rtems_device_minor_number minor,                                  void *arg){#ifdef I_WANT_TERMIOS  /*  if (minor == SCC2_MINOR) {  */    return rtems_termios_write(arg);  /*  }  else {    return m8xx_console_write(major, minor, arg);  }  */#else  return m8xx_console_write(major, minor, arg);#endif}/* * Handle ioctl request. * Should set hardware line speed, bits/char, etc. */rtems_device_driver console_control(rtems_device_major_number major,                                    rtems_device_minor_number minor,                                    void *arg){ #ifdef I_WANT_TERMIOS  if (minor == SCC2_MINOR) {    return rtems_termios_ioctl (arg);  }  else {    return RTEMS_SUCCESSFUL;  }#else  return RTEMS_SUCCESSFUL;#endif}/* *  Support routine for console-generic */int mbx8xx_console_get_configuration(void){#if NVRAM_CONFIGURE == 1  return nvram->console_mode;#else#if UARTS_IO_MODE == 1  return 0x02;#else  return 0;#endif#endif}