diff options
Diffstat (limited to 'bsps/shared/dev/serial/console-polled.c')
-rw-r--r-- | bsps/shared/dev/serial/console-polled.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/bsps/shared/dev/serial/console-polled.c b/bsps/shared/dev/serial/console-polled.c new file mode 100644 index 0000000000..26c9817bdb --- /dev/null +++ b/bsps/shared/dev/serial/console-polled.c @@ -0,0 +1,143 @@ +/* + * This file contains the hardware independent portion of a polled + * console device driver. If a BSP chooses to use this, then it + * only has to provide a few board dependent routines. + */ + +/* + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * + * 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. + */ + +#include <bsp.h> +#include <rtems/libio.h> +#include <stdlib.h> +#include <assert.h> + +#include <bsp/console-polled.h> +#include <bsp/fatal.h> +#include <rtems/console.h> + +/* + * Prototypes + */ +ssize_t console_write_support(int, const char *, size_t); + +/* + * Console Termios Support Entry Points + * + */ +ssize_t console_write_support ( + int minor, + const char *bufarg, + size_t len +) +{ + int nwrite = 0; + const char *buf = bufarg; + + while (nwrite < len) { + console_outbyte_polled( minor, *buf++ ); + nwrite++; + } + return nwrite; +} + +/* + * Console Device Driver Entry Points + * + */ + +rtems_device_driver console_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg +) +{ + rtems_status_code status; + + /* + * Ensure Termios is initialized + */ + rtems_termios_initialize(); + + /* + * Make sure the hardware is initialized. + */ + console_initialize_hardware(); + + /* + * Register Device Names + */ + status = rtems_io_register_name( "/dev/console", major, 0 ); + if (status != RTEMS_SUCCESSFUL) + rtems_fatal_error_occurred(BSP_FATAL_CONSOLE_REGISTER_DEV_2); + + return RTEMS_SUCCESSFUL; +} + +rtems_device_driver console_open( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + static const rtems_termios_callbacks pollCallbacks = { + NULL, /* firstOpen */ + NULL, /* lastClose */ + console_inbyte_nonblocking, /* pollRead */ + console_write_support, /* write */ + NULL, /* setAttributes */ + NULL, /* stopRemoteTx */ + NULL, /* startRemoteTx */ + 0 /* outputUsesInterrupts */ + }; + + assert( minor == 0 ); + if ( minor != 0 ) + return RTEMS_INVALID_NUMBER; + + rtems_termios_open( major, minor, arg, &pollCallbacks ); + + return RTEMS_SUCCESSFUL; +} + +rtems_device_driver console_close( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_termios_close( arg ); +} + +rtems_device_driver console_read( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_termios_read( arg ); +} + +rtems_device_driver console_write( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_termios_write( arg ); +} + +rtems_device_driver console_control( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return rtems_termios_ioctl( arg ); +} |