mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 00:48:52 +09:00
![wdenk](/assets/img/avatar_default.png)
* Patch by Rune Torgersen, 16 Apr 2004: LBA48 fixes * Patches by Pantelis Antoniou, 16 Apr 2004: - Fix some compile problems; add "once" functionality for the netretry variable
589 lines
12 KiB
C
589 lines
12 KiB
C
/*
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* (C) Copyright 2000
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* Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <stdarg.h>
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#include <malloc.h>
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#include <console.h>
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#include <exports.h>
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#ifdef CONFIG_AMIGAONEG3SE
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int console_changed = 0;
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#endif
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#ifdef CFG_CONSOLE_IS_IN_ENV
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/*
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* if overwrite_console returns 1, the stdin, stderr and stdout
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* are switched to the serial port, else the settings in the
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* environment are used
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*/
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#ifdef CFG_CONSOLE_OVERWRITE_ROUTINE
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extern int overwrite_console (void);
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#else
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int overwrite_console (void)
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{
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return (0);
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}
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#endif /* CFG_CONSOLE_OVERWRITE_ROUTINE */
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#endif /* CFG_CONSOLE_IS_IN_ENV */
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static int console_setfile (int file, device_t * dev)
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{
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DECLARE_GLOBAL_DATA_PTR;
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int error = 0;
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if (dev == NULL)
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return -1;
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switch (file) {
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case stdin:
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case stdout:
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case stderr:
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/* Start new device */
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if (dev->start) {
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error = dev->start ();
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/* If it's not started dont use it */
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if (error < 0)
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break;
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}
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/* Assign the new device (leaving the existing one started) */
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stdio_devices[file] = dev;
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/*
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* Update monitor functions
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* (to use the console stuff by other applications)
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*/
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switch (file) {
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case stdin:
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gd->jt[XF_getc] = dev->getc;
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gd->jt[XF_tstc] = dev->tstc;
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break;
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case stdout:
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gd->jt[XF_putc] = dev->putc;
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gd->jt[XF_puts] = dev->puts;
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gd->jt[XF_printf] = printf;
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break;
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}
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break;
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default: /* Invalid file ID */
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error = -1;
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}
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return error;
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}
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/** U-Boot INITIAL CONSOLE-NOT COMPATIBLE FUNCTIONS *************************/
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void serial_printf (const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CFG_PBSIZE];
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va_start (args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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va_end (args);
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serial_puts (printbuffer);
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}
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int fgetc (int file)
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{
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if (file < MAX_FILES)
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return stdio_devices[file]->getc ();
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return -1;
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}
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int ftstc (int file)
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{
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if (file < MAX_FILES)
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return stdio_devices[file]->tstc ();
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return -1;
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}
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void fputc (int file, const char c)
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{
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if (file < MAX_FILES)
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stdio_devices[file]->putc (c);
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}
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void fputs (int file, const char *s)
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{
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if (file < MAX_FILES)
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stdio_devices[file]->puts (s);
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}
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void fprintf (int file, const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CFG_PBSIZE];
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va_start (args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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va_end (args);
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/* Send to desired file */
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fputs (file, printbuffer);
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}
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/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/
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int getc (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Get from the standard input */
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return fgetc (stdin);
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}
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/* Send directly to the handler */
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return serial_getc ();
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}
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int tstc (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Test the standard input */
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return ftstc (stdin);
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}
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/* Send directly to the handler */
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return serial_tstc ();
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}
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void putc (const char c)
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{
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_SILENT_CONSOLE
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if (gd->flags & GD_FLG_SILENT)
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return;
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#endif
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Send to the standard output */
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fputc (stdout, c);
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} else {
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/* Send directly to the handler */
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serial_putc (c);
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}
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}
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void puts (const char *s)
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{
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DECLARE_GLOBAL_DATA_PTR;
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#ifdef CONFIG_SILENT_CONSOLE
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if (gd->flags & GD_FLG_SILENT)
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return;
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#endif
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if (gd->flags & GD_FLG_DEVINIT) {
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/* Send to the standard output */
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fputs (stdout, s);
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} else {
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/* Send directly to the handler */
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serial_puts (s);
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}
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}
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void printf (const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CFG_PBSIZE];
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va_start (args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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va_end (args);
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/* Print the string */
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puts (printbuffer);
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}
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void vprintf (const char *fmt, va_list args)
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{
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uint i;
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char printbuffer[CFG_PBSIZE];
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf (printbuffer, fmt, args);
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/* Print the string */
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puts (printbuffer);
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}
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/* test if ctrl-c was pressed */
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static int ctrlc_disabled = 0; /* see disable_ctrl() */
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static int ctrlc_was_pressed = 0;
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int ctrlc (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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if (!ctrlc_disabled && gd->have_console) {
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if (tstc ()) {
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switch (getc ()) {
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case 0x03: /* ^C - Control C */
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ctrlc_was_pressed = 1;
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return 1;
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default:
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break;
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}
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}
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}
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return 0;
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}
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/* pass 1 to disable ctrlc() checking, 0 to enable.
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* returns previous state
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*/
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int disable_ctrlc (int disable)
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{
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int prev = ctrlc_disabled; /* save previous state */
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ctrlc_disabled = disable;
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return prev;
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}
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int had_ctrlc (void)
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{
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return ctrlc_was_pressed;
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}
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void clear_ctrlc (void)
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{
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ctrlc_was_pressed = 0;
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}
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#ifdef CONFIG_MODEM_SUPPORT_DEBUG
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char screen[1024];
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char *cursor = screen;
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int once = 0;
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inline void dbg(const char *fmt, ...)
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{
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va_list args;
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uint i;
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char printbuffer[CFG_PBSIZE];
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if (!once) {
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memset(screen, 0, sizeof(screen));
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once++;
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}
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va_start(args, fmt);
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/* For this to work, printbuffer must be larger than
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* anything we ever want to print.
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*/
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i = vsprintf(printbuffer, fmt, args);
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va_end(args);
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if ((screen + sizeof(screen) - 1 - cursor) < strlen(printbuffer)+1) {
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memset(screen, 0, sizeof(screen));
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cursor = screen;
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}
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sprintf(cursor, printbuffer);
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cursor += strlen(printbuffer);
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}
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#else
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inline void dbg(const char *fmt, ...)
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{
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}
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#endif
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/** U-Boot INIT FUNCTIONS *************************************************/
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int console_assign (int file, char *devname)
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{
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int flag, i;
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/* Check for valid file */
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switch (file) {
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case stdin:
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flag = DEV_FLAGS_INPUT;
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break;
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case stdout:
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case stderr:
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flag = DEV_FLAGS_OUTPUT;
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break;
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default:
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return -1;
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}
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/* Check for valid device name */
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for (i = 1; i <= ListNumItems (devlist); i++) {
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device_t *dev = ListGetPtrToItem (devlist, i);
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if (strcmp (devname, dev->name) == 0) {
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if (dev->flags & flag)
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return console_setfile (file, dev);
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return -1;
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}
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}
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return -1;
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}
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/* Called before relocation - use serial functions */
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int console_init_f (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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gd->have_console = 1;
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#ifdef CONFIG_SILENT_CONSOLE
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if (getenv("silent") != NULL)
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gd->flags |= GD_FLG_SILENT;
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#endif
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return (0);
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}
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#if defined(CFG_CONSOLE_IS_IN_ENV) || defined(CONFIG_SPLASH_SCREEN) || defined(CONFIG_SILENT_CONSOLE)
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/* search a device */
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device_t *search_device (int flags, char *name)
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{
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int i, items;
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device_t *dev = NULL;
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items = ListNumItems (devlist);
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if (name == NULL)
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return dev;
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for (i = 1; i <= items; i++) {
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dev = ListGetPtrToItem (devlist, i);
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if ((dev->flags & flags) && (strcmp (name, dev->name) == 0)) {
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break;
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}
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}
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return dev;
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}
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#endif /* CFG_CONSOLE_IS_IN_ENV || CONFIG_SPLASH_SCREEN */
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#ifdef CFG_CONSOLE_IS_IN_ENV
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/* Called after the relocation - use desired console functions */
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int console_init_r (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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char *stdinname, *stdoutname, *stderrname;
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device_t *inputdev = NULL, *outputdev = NULL, *errdev = NULL;
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#ifdef CFG_CONSOLE_ENV_OVERWRITE
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int i;
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#endif /* CFG_CONSOLE_ENV_OVERWRITE */
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/* set default handlers at first */
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gd->jt[XF_getc] = serial_getc;
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gd->jt[XF_tstc] = serial_tstc;
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gd->jt[XF_putc] = serial_putc;
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gd->jt[XF_puts] = serial_puts;
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gd->jt[XF_printf] = serial_printf;
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/* stdin stdout and stderr are in environment */
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/* scan for it */
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stdinname = getenv ("stdin");
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stdoutname = getenv ("stdout");
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stderrname = getenv ("stderr");
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if (overwrite_console () == 0) { /* if not overwritten by config switch */
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inputdev = search_device (DEV_FLAGS_INPUT, stdinname);
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outputdev = search_device (DEV_FLAGS_OUTPUT, stdoutname);
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errdev = search_device (DEV_FLAGS_OUTPUT, stderrname);
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}
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/* if the devices are overwritten or not found, use default device */
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if (inputdev == NULL) {
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inputdev = search_device (DEV_FLAGS_INPUT, "serial");
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}
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if (outputdev == NULL) {
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outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
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}
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if (errdev == NULL) {
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errdev = search_device (DEV_FLAGS_OUTPUT, "serial");
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}
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/* Initializes output console first */
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if (outputdev != NULL) {
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console_setfile (stdout, outputdev);
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}
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if (errdev != NULL) {
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console_setfile (stderr, errdev);
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}
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if (inputdev != NULL) {
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console_setfile (stdin, inputdev);
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}
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gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
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#ifndef CFG_CONSOLE_INFO_QUIET
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/* Print information */
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puts ("In: ");
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if (stdio_devices[stdin] == NULL) {
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puts ("No input devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stdin]->name);
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}
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puts ("Out: ");
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if (stdio_devices[stdout] == NULL) {
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puts ("No output devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stdout]->name);
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}
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puts ("Err: ");
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if (stdio_devices[stderr] == NULL) {
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puts ("No error devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stderr]->name);
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}
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#endif /* CFG_CONSOLE_INFO_QUIET */
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#ifdef CFG_CONSOLE_ENV_OVERWRITE
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/* set the environment variables (will overwrite previous env settings) */
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for (i = 0; i < 3; i++) {
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setenv (stdio_names[i], stdio_devices[i]->name);
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}
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#endif /* CFG_CONSOLE_ENV_OVERWRITE */
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#if 0
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/* If nothing usable installed, use only the initial console */
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if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
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return (0);
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#endif
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return (0);
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}
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#else /* CFG_CONSOLE_IS_IN_ENV */
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/* Called after the relocation - use desired console functions */
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int console_init_r (void)
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{
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DECLARE_GLOBAL_DATA_PTR;
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device_t *inputdev = NULL, *outputdev = NULL;
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int i, items = ListNumItems (devlist);
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#ifdef CONFIG_SPLASH_SCREEN
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/* suppress all output if splash screen is enabled and we have
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a bmp to display */
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if (getenv("splashimage") != NULL)
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outputdev = search_device (DEV_FLAGS_OUTPUT, "nulldev");
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#endif
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#ifdef CONFIG_SILENT_CONSOLE
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/* Suppress all output if "silent" mode requested */
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if (gd->flags & GD_FLG_SILENT)
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outputdev = search_device (DEV_FLAGS_OUTPUT, "nulldev");
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#endif
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/* Scan devices looking for input and output devices */
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for (i = 1;
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(i <= items) && ((inputdev == NULL) || (outputdev == NULL));
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i++
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) {
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device_t *dev = ListGetPtrToItem (devlist, i);
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if ((dev->flags & DEV_FLAGS_INPUT) && (inputdev == NULL)) {
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inputdev = dev;
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}
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if ((dev->flags & DEV_FLAGS_OUTPUT) && (outputdev == NULL)) {
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outputdev = dev;
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}
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}
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/* Initializes output console first */
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if (outputdev != NULL) {
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console_setfile (stdout, outputdev);
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console_setfile (stderr, outputdev);
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}
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/* Initializes input console */
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if (inputdev != NULL) {
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console_setfile (stdin, inputdev);
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}
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gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */
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#ifndef CFG_CONSOLE_INFO_QUIET
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/* Print information */
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puts ("In: ");
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if (stdio_devices[stdin] == NULL) {
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puts ("No input devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stdin]->name);
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}
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puts ("Out: ");
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if (stdio_devices[stdout] == NULL) {
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puts ("No output devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stdout]->name);
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}
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puts ("Err: ");
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if (stdio_devices[stderr] == NULL) {
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puts ("No error devices available!\n");
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} else {
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printf ("%s\n", stdio_devices[stderr]->name);
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}
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#endif /* CFG_CONSOLE_INFO_QUIET */
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/* Setting environment variables */
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for (i = 0; i < 3; i++) {
|
|
setenv (stdio_names[i], stdio_devices[i]->name);
|
|
}
|
|
|
|
#if 0
|
|
/* If nothing usable installed, use only the initial console */
|
|
if ((stdio_devices[stdin] == NULL) && (stdio_devices[stdout] == NULL))
|
|
return (0);
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
#endif /* CFG_CONSOLE_IS_IN_ENV */
|