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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1996-09-06 18:11:41 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1996-09-06 18:11:41 +0000 |
commit | f198c63d6a1d172aef422353e42b41f8cb128275 (patch) | |
tree | f9f975562c842273fe349148c7bd58f9f38a8ee0 /c/src/lib/libbsp/mips64orion/p4000/console/console.c | |
parent | added MIPS port by Craig Lebakken (lebakken@minn.net) and Derrick Ostertag (diff) | |
download | rtems-f198c63d6a1d172aef422353e42b41f8cb128275.tar.bz2 |
new file for MIPS port by Craig Lebakken (lebakken@minn.net) and
Derrick Ostertag (ostertag@transition.com).
Diffstat (limited to 'c/src/lib/libbsp/mips64orion/p4000/console/console.c')
-rw-r--r-- | c/src/lib/libbsp/mips64orion/p4000/console/console.c | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/mips64orion/p4000/console/console.c b/c/src/lib/libbsp/mips64orion/p4000/console/console.c new file mode 100644 index 0000000000..cc52dc3c7c --- /dev/null +++ b/c/src/lib/libbsp/mips64orion/p4000/console/console.c @@ -0,0 +1,270 @@ +/* + * This file contains the IDT 4650 console IO package. + * + * Author: Craig Lebakken <craigl@transition.com> + * + * COPYRIGHT (c) 1996 by Transition Networks Inc. + * + * To anyone who acknowledges that this file is provided "AS IS" + * without any express or implied warranty: + * permission to use, copy, modify, and distribute this file + * for any purpose is hereby granted without fee, provided that + * the above copyright notice and this notice appears in all + * copies, and that the name of Transition Networks not be used in + * advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * Transition Networks makes no representations about the suitability + * of this software for any purpose. + * + * Derived from c/src/lib/libbsp/no_cpu/no_bsp/console/console.c: + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * console.c,v 1.4 1995/12/05 19:23:02 joel Exp + */ + + +#ifndef lint +static char _sccsid[] = "@(#)console.c 08/20/96 1.6\n"; +#endif + + +#include <bsp.h> +#include <rtems/libio.h> +#include <ctype.h> + +char idtsim_getchar( void ); +void idtsim_putchar( char c ); +void mips_leddisplay( char a, char b, char c, char d ); + + +/* console_initialize + * + * This routine initializes the console IO driver. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_device_driver console_initialize( + rtems_device_major_number major, + rtems_device_minor_number minor, + void *arg +) +{ + rtems_status_code status; + + status = rtems_io_register_name( + "/dev/console", + major, + (rtems_device_minor_number) 0 + ); + + if (status != RTEMS_SUCCESSFUL) + rtems_fatal_error_occurred(status); + + return RTEMS_SUCCESSFUL; +} + + +/* is_character_ready + * + * This routine returns TRUE if a character is available. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + */ + +rtems_boolean is_character_ready( + char *ch +) +{ + *ch = '\0'; /* return NULL for no particular reason */ + return(TRUE); +} + +/* inbyte + * + * This routine reads a character from the SOURCE. + * + * Input parameters: NONE + * + * Output parameters: NONE + * + * Return values: + * character read from SOURCE + */ + +char inbyte( void ) +{ + /* + * If polling, wait until a character is available. + */ + + return idtsim_getchar(); +} + +/* outbyte + * + * This routine transmits a character out the SOURCE. It may support + * XON/XOFF flow control. + * + * Input parameters: + * ch - character to be transmitted + * + * Output parameters: NONE + */ + +void outbyte( + char ch +) +{ +#define NUM_LEDS 4 + static unsigned int cur_led = 0; + static unsigned char led_chars[NUM_LEDS]; + + /* + * If polling, wait for the transmitter to be ready. + * Check for flow control requests and process. + * Then output the character. + */ + + idtsim_putchar( ch ); + + /* print out first four alpha numeric characters in a line */ + if ( ch == '\n' ) + { + mips_leddisplay( led_chars[0], led_chars[1], led_chars[2], led_chars[3] ); + cur_led = 0; + } + else if ( isalnum( ch ) && cur_led < NUM_LEDS ) + { + led_chars[cur_led++] = ch; + } + +} + + +static int console_fd = -1; + +/* + * Open entry point + */ + +rtems_device_driver console_open( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ +#if 0 + int console_fd = open("tty0", 2); /* open for read/write */ +#endif + return RTEMS_SUCCESSFUL; +} + +/* + * Close entry point + */ + +rtems_device_driver console_close( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ +#if 0 + if ( console_fd ) + close( console_fd ); +#endif + return RTEMS_SUCCESSFUL; +} + +/* + * read bytes from the serial port. We only have stdin. + */ + +rtems_device_driver console_read( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + rtems_libio_rw_args_t *rw_args; + char *buffer; + int maximum; + int count = 0; + + rw_args = (rtems_libio_rw_args_t *) arg; + + buffer = rw_args->buffer; + maximum = rw_args->count; + + for (count = 0; count < maximum; count++) { + buffer[ count ] = inbyte(); + if (buffer[ count ] == '\n' || buffer[ count ] == '\r') { + buffer[ count++ ] = '\n'; + buffer[ count ] = 0; + break; + } + } + + rw_args->bytes_moved = count; + return (count >= 0) ? RTEMS_SUCCESSFUL : RTEMS_UNSATISFIED; +} + +/* + * write bytes to the serial port. Stdout and stderr are the same. + */ + +rtems_device_driver console_write( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + int count; + int maximum; + rtems_libio_rw_args_t *rw_args; + char *buffer; + + rw_args = (rtems_libio_rw_args_t *) arg; + + buffer = rw_args->buffer; + maximum = rw_args->count; + + for (count = 0; count < maximum; count++) { + if ( buffer[ count ] == '\n') { + outbyte('\r'); + } + outbyte( buffer[ count ] ); + } + + rw_args->bytes_moved = maximum; + return 0; +} + +/* + * IO Control entry point + */ + +rtems_device_driver console_control( + rtems_device_major_number major, + rtems_device_minor_number minor, + void * arg +) +{ + return RTEMS_SUCCESSFUL; +} |