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