/* MS-DOS specific Lisp utilities. Coded by Manabu Higashida, 1991. Major changes May-July 1993 Morten Welinder (only 10% original code left) Copyright (C) 1991, 1993, 1996, 1997, 1998, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. This file is part of GNU Emacs. GNU Emacs 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, or (at your option) any later version. GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #include #ifdef MSDOS /* The entire file is within this conditional */ #include #include #include #include "lisp.h" #include "buffer.h" #include "termchar.h" #include "termhooks.h" #include "frame.h" #include "blockinput.h" #include "window.h" #include "dosfns.h" #include "msdos.h" #include "dispextern.h" #include "charset.h" #include "coding.h" #include #include #include #include #ifndef __DJGPP_MINOR__ # define __tb _go32_info_block.linear_address_of_transfer_buffer; #endif DEFUN ("int86", Fint86, Sint86, 2, 2, 0, doc: /* Call specific MSDOS interrupt number INTERRUPT with REGISTERS. Return the updated REGISTER vector. INTERRUPT should be an integer in the range 0 to 255. REGISTERS should be a vector produced by `make-register' and `set-register-value'. */) (interrupt, registers) Lisp_Object interrupt, registers; { register int i; int no; union REGS inregs, outregs; Lisp_Object val; CHECK_NUMBER (interrupt); no = (unsigned long) XINT (interrupt); CHECK_VECTOR (registers); if (no < 0 || no > 0xff || XVECTOR (registers)-> size != 8) return Qnil; for (i = 0; i < 8; i++) CHECK_NUMBER (XVECTOR (registers)->contents[i]); inregs.x.ax = (unsigned long) XFASTINT (XVECTOR (registers)->contents[0]); inregs.x.bx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[1]); inregs.x.cx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[2]); inregs.x.dx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[3]); inregs.x.si = (unsigned long) XFASTINT (XVECTOR (registers)->contents[4]); inregs.x.di = (unsigned long) XFASTINT (XVECTOR (registers)->contents[5]); inregs.x.cflag = (unsigned long) XFASTINT (XVECTOR (registers)->contents[6]); inregs.x.flags = (unsigned long) XFASTINT (XVECTOR (registers)->contents[7]); int86 (no, &inregs, &outregs); XVECTOR (registers)->contents[0] = make_number (outregs.x.ax); XVECTOR (registers)->contents[1] = make_number (outregs.x.bx); XVECTOR (registers)->contents[2] = make_number (outregs.x.cx); XVECTOR (registers)->contents[3] = make_number (outregs.x.dx); XVECTOR (registers)->contents[4] = make_number (outregs.x.si); XVECTOR (registers)->contents[5] = make_number (outregs.x.di); XVECTOR (registers)->contents[6] = make_number (outregs.x.cflag); XVECTOR (registers)->contents[7] = make_number (outregs.x.flags); return registers; } DEFUN ("msdos-memget", Fdos_memget, Sdos_memget, 2, 2, 0, doc: /* Read DOS memory at offset ADDRESS into VECTOR. Return the updated VECTOR. */) (address, vector) Lisp_Object address, vector; { register int i; int offs, len; char *buf; Lisp_Object val; CHECK_NUMBER (address); offs = (unsigned long) XINT (address); CHECK_VECTOR (vector); len = XVECTOR (vector)-> size; if (len < 1 || len > 2048 || offs < 0 || offs > 0xfffff - len) return Qnil; buf = alloca (len); dosmemget (offs, len, buf); for (i = 0; i < len; i++) XVECTOR (vector)->contents[i] = make_number (buf[i]); return vector; } DEFUN ("msdos-memput", Fdos_memput, Sdos_memput, 2, 2, 0, doc: /* Write DOS memory at offset ADDRESS from VECTOR. */) (address, vector) Lisp_Object address, vector; { register int i; int offs, len; char *buf; Lisp_Object val; CHECK_NUMBER (address); offs = (unsigned long) XINT (address); CHECK_VECTOR (vector); len = XVECTOR (vector)-> size; if (len < 1 || len > 2048 || offs < 0 || offs > 0xfffff - len) return Qnil; buf = alloca (len); for (i = 0; i < len; i++) { CHECK_NUMBER (XVECTOR (vector)->contents[i]); buf[i] = (unsigned char) XFASTINT (XVECTOR (vector)->contents[i]) & 0xFF; } dosmemput (buf, len, offs); return Qt; } DEFUN ("msdos-set-keyboard", Fmsdos_set_keyboard, Smsdos_set_keyboard, 1, 2, 0, doc: /* Set keyboard layout according to COUNTRY-CODE. If the optional argument ALLKEYS is non-nil, the keyboard is mapped for all keys; otherwise it is only used when the ALT key is pressed. The current keyboard layout is available in dos-keyboard-code. */) (country_code, allkeys) Lisp_Object country_code, allkeys; { CHECK_NUMBER (country_code); if (!dos_set_keyboard (XINT (country_code), !NILP (allkeys))) return Qnil; return Qt; } #ifndef HAVE_X_WINDOWS /* Later we might want to control the mouse interface with this function, e.g., with respect to non-80 column screen modes. */ DEFUN ("msdos-mouse-p", Fmsdos_mouse_p, Smsdos_mouse_p, 0, 0, 0, doc: /* Report whether a mouse is present. */) () { if (have_mouse) return Qt; else return Qnil; } #endif DEFUN ("msdos-mouse-init", Fmsdos_mouse_init, Smsdos_mouse_init, 0, 0, "", doc: /* Initialize and enable mouse if available. */) () { if (have_mouse) { have_mouse = 1; mouse_init (); return Qt; } return Qnil; } DEFUN ("msdos-mouse-enable", Fmsdos_mouse_enable, Smsdos_mouse_enable, 0, 0, "", doc: /* Enable mouse if available. */) () { if (have_mouse) { have_mouse = 1; mouse_on (); } return have_mouse ? Qt : Qnil; } DEFUN ("msdos-mouse-disable", Fmsdos_mouse_disable, Smsdos_mouse_disable, 0, 0, "", doc: /* Disable mouse if available. */) () { mouse_off (); if (have_mouse) have_mouse = -1; return Qnil; } DEFUN ("insert-startup-screen", Finsert_startup_screen, Sinsert_startup_screen, 0, 0, "", doc: /* Insert copy of screen contents prior to starting emacs. Return nil if startup screen is not available. */) () { char *s; int rows, cols, i, j; if (!dos_get_saved_screen (&s, &rows, &cols)) return Qnil; for (i = 0; i < rows; i++) { for (j = 0; j < cols; j++) { insert_char (*s); s += 2; } insert_char ('\n'); } return Qt; } /* country info */ EMACS_INT dos_country_code; EMACS_INT dos_codepage; EMACS_INT dos_timezone_offset; EMACS_INT dos_decimal_point; EMACS_INT dos_keyboard_layout; unsigned char dos_country_info[DOS_COUNTRY_INFO]; static unsigned char usa_country_info[DOS_COUNTRY_INFO] = { 0, 0, /* date format */ '$', 0, 0, 0, 0, /* currency string */ ',', 0, /* thousands separator */ '.', 0, /* decimal separator */ '/', 0, /* date separator */ ':', 0, /* time separator */ 0, /* currency format */ 2, /* digits after decimal in currency */ 0, /* time format */ 0, 0, 0, 0, /* address of case map routine, GPF if used */ ' ', 0, /* data-list separator (?) */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* reserved */ }; EMACS_INT dos_hyper_key; EMACS_INT dos_super_key; EMACS_INT dos_keypad_mode; Lisp_Object Vdos_version; Lisp_Object Vdos_display_scancodes; #ifndef HAVE_X_WINDOWS static unsigned dos_windows_version; Lisp_Object Vdos_windows_version; char parent_vm_title[50]; /* Ralf Brown says 30 is enough */ int w95_set_virtual_machine_title (const char *); void restore_parent_vm_title (void) { if (NILP (Vdos_windows_version)) return; if ((dos_windows_version & 0xff) >= 4 && parent_vm_title[0]) w95_set_virtual_machine_title (parent_vm_title); delay (50); } #endif /* !HAVE_X_WINDOWS */ void init_dosfns () { union REGS regs; _go32_dpmi_registers dpmiregs; unsigned long xbuf = _go32_info_block.linear_address_of_transfer_buffer; #ifndef SYSTEM_MALLOC get_lim_data (); /* why the hell isn't this called elsewhere? */ #endif regs.x.ax = 0x3000; intdos (®s, ®s); Vdos_version = Fcons (make_number (regs.h.al), make_number (regs.h.ah)); /* Obtain the country code via DPMI, use DJGPP transfer buffer. */ dpmiregs.x.ax = 0x3800; dpmiregs.x.ds = xbuf >> 4; dpmiregs.x.dx = 0; dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; _go32_dpmi_simulate_int (0x21, &dpmiregs); if (dpmiregs.x.flags & 1) { dos_country_code = 1; /* assume USA if 213800 failed */ memcpy (dos_country_info, usa_country_info, DOS_COUNTRY_INFO); } else { dos_country_code = dpmiregs.x.bx; dosmemget (xbuf, DOS_COUNTRY_INFO, dos_country_info); } dos_set_keyboard (dos_country_code, 0); regs.x.ax = 0x6601; intdos (®s, ®s); if (regs.x.cflag) /* Estimate code page from country code */ switch (dos_country_code) { case 45: /* Denmark */ case 47: /* Norway */ dos_codepage = 865; break; default: /* US */ dos_codepage = 437; } else dos_codepage = regs.x.bx & 0xffff; #ifndef HAVE_X_WINDOWS parent_vm_title[0] = '\0'; /* If we are running from DOS box on MS-Windows, get Windows version. */ dpmiregs.x.ax = 0x1600; /* enhanced mode installation check */ dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; _go32_dpmi_simulate_int (0x2f, &dpmiregs); /* We only support Windows-specific features when we run on Windows 9X or on Windows 3.X/enhanced mode. Int 2Fh/AX=1600h returns: AL = 00: no Windows at all; AL = 01: Windows/386 2.x; AL = 80h: Windows 3.x in mode other than enhanced; AL = FFh: Windows/386 2.x We also check AH > 0 (Windows 3.1 or later), in case AL tricks us. */ if (dpmiregs.h.al > 2 && dpmiregs.h.al != 0x80 && dpmiregs.h.al != 0xff && (dpmiregs.h.al > 3 || dpmiregs.h.ah > 0)) { dos_windows_version = dpmiregs.x.ax; Vdos_windows_version = Fcons (make_number (dpmiregs.h.al), make_number (dpmiregs.h.ah)); /* Save the current title of this virtual machine, so we can restore it before exiting. Otherwise, Windows 95 will continue to use the title we set even after we are history, stupido... */ if (dpmiregs.h.al >= 4) { dpmiregs.x.ax = 0x168e; dpmiregs.x.dx = 3; /* get VM title */ dpmiregs.x.cx = sizeof(parent_vm_title) - 1; dpmiregs.x.es = __tb >> 4; dpmiregs.x.di = __tb & 15; dpmiregs.x.sp = dpmiregs.x.ss = dpmiregs.x.flags = 0; _go32_dpmi_simulate_int (0x2f, &dpmiregs); if (dpmiregs.x.ax == 1) dosmemget (__tb, sizeof(parent_vm_title), parent_vm_title); } } else { dos_windows_version = 0; Vdos_windows_version = Qnil; } #endif /* !HAVE_X_WINDOWS */ #if __DJGPP__ >= 2 /* Without this, we never see hidden files. Don't OR it with the previous value, so the value recorded at dump time, possibly with `preserve-case' flags set, won't get through. */ __opendir_flags = __OPENDIR_FIND_HIDDEN; #if __DJGPP_MINOR__ == 0 /* Under LFN, preserve the case of files as recorded in the directory (in DJGPP 2.01 and later this is automagically done by the library). */ if (!NILP (Fmsdos_long_file_names ())) __opendir_flags |= __OPENDIR_PRESERVE_CASE; #endif /* __DJGPP_MINOR__ == 0 */ #endif /* __DJGPP__ >= 2 */ } #ifndef HAVE_X_WINDOWS /* Emulation of some X window features from xfns.c and xfaces.c. */ /* Standard VGA colors, in the order of their standard numbering in the default VGA palette. */ static char *vga_colors[16] = { "black", "blue", "green", "cyan", "red", "magenta", "brown", "lightgray", "darkgray", "lightblue", "lightgreen", "lightcyan", "lightred", "lightmagenta", "yellow", "white" }; /* Given a color name, return its index, or -1 if not found. Note that this only performs case-insensitive comparison against the standard names. For anything more sophisticated, like matching "gray" with "grey" or translating X color names into their MSDOS equivalents, call the Lisp function Qtty_color_desc (defined on lisp/term/tty-colors.el). */ int msdos_stdcolor_idx (const char *name) { int i; for (i = 0; i < sizeof (vga_colors) / sizeof (vga_colors[0]); i++) if (strcasecmp (name, vga_colors[i]) == 0) return i; return strcmp (name, unspecified_fg) == 0 ? FACE_TTY_DEFAULT_FG_COLOR : strcmp (name, unspecified_bg) == 0 ? FACE_TTY_DEFAULT_BG_COLOR : FACE_TTY_DEFAULT_COLOR; } /* Given a color index, return its standard name. */ Lisp_Object msdos_stdcolor_name (int idx) { extern Lisp_Object Qunspecified; if (idx == FACE_TTY_DEFAULT_FG_COLOR) return build_string (unspecified_fg); else if (idx == FACE_TTY_DEFAULT_BG_COLOR) return build_string (unspecified_bg); else if (idx >= 0 && idx < sizeof (vga_colors) / sizeof (vga_colors[0])) return build_string (vga_colors[idx]); else return Qunspecified; /* meaning the default */ } /* Support for features that are available when we run in a DOS box on MS-Windows. */ int ms_windows_version (void) { return dos_windows_version; } /* Set the title of the current virtual machine, to appear on the caption bar of that machine's window. */ int w95_set_virtual_machine_title (const char *title_string) { /* Only Windows 9X (version 4 and higher) support this function. */ if (!NILP (Vdos_windows_version) && (dos_windows_version & 0xff) >= 4) { _go32_dpmi_registers regs; dosmemput (title_string, strlen (title_string) + 1, __tb); regs.x.ax = 0x168e; regs.x.dx = 1; regs.x.es = __tb >> 4; regs.x.di = __tb & 15; regs.x.sp = regs.x.ss = regs.x.flags = 0; _go32_dpmi_simulate_int (0x2f, ®s); return regs.x.ax == 1; } return 0; } /* Change the title of frame F to NAME. If NAME is nil, use the frame name as the title. If Emacs is not run from a DOS box on Windows 9X, this only sets the name in the frame struct, but has no other effects. */ void x_set_title (f, name) struct frame *f; Lisp_Object name; { /* Don't change the title if it's already NAME. */ if (EQ (name, f->title)) return; update_mode_lines = 1; f->title = name; if (NILP (name)) name = f->name; if (FRAME_MSDOS_P (f)) { BLOCK_INPUT; w95_set_virtual_machine_title (SDATA (name)); UNBLOCK_INPUT; } } #endif /* !HAVE_X_WINDOWS */ DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0, doc: /* Return storage information about the file system FILENAME is on. Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total storage of the file system, FREE is the free storage, and AVAIL is the storage available to a non-superuser. All 3 numbers are in bytes. If the underlying system call fails, value is nil. */) (filename) Lisp_Object filename; { struct statfs stfs; Lisp_Object encoded, value; CHECK_STRING (filename); filename = Fexpand_file_name (filename, Qnil); encoded = ENCODE_FILE (filename); if (statfs (SDATA (encoded), &stfs)) value = Qnil; else value = list3 (make_float ((double) stfs.f_bsize * stfs.f_blocks), make_float ((double) stfs.f_bsize * stfs.f_bfree), make_float ((double) stfs.f_bsize * stfs.f_bavail)); return value; } void dos_cleanup (void) { #ifndef HAVE_X_WINDOWS restore_parent_vm_title (); #endif /* Make sure the termscript file is committed, in case we are crashing and some vital info was written there. */ if (termscript) { fflush (termscript); fsync (fileno (termscript)); } } /* * Define everything */ syms_of_dosfns () { defsubr (&Sint86); defsubr (&Sdos_memget); defsubr (&Sdos_memput); defsubr (&Smsdos_mouse_init); defsubr (&Smsdos_mouse_enable); defsubr (&Smsdos_set_keyboard); defsubr (&Sinsert_startup_screen); defsubr (&Smsdos_mouse_disable); defsubr (&Sfile_system_info); #ifndef HAVE_X_WINDOWS defsubr (&Smsdos_mouse_p); #endif DEFVAR_INT ("dos-country-code", &dos_country_code, doc: /* The country code returned by Dos when Emacs was started. Usually this is the international telephone prefix. */); DEFVAR_INT ("dos-codepage", &dos_codepage, doc: /* The codepage active when Emacs was started. The following are known: 437 United States 850 Multilingual (Latin I) 852 Slavic (Latin II) 857 Turkish 860 Portugal 861 Iceland 863 Canada (French) 865 Norway/Denmark */); DEFVAR_INT ("dos-timezone-offset", &dos_timezone_offset, doc: /* The current timezone offset to UTC in minutes. Implicitly modified when the TZ variable is changed. */); DEFVAR_LISP ("dos-version", &Vdos_version, doc: /* The (MAJOR . MINOR) Dos version (subject to modification with setver). */); #ifndef HAVE_X_WINDOWS DEFVAR_LISP ("dos-windows-version", &Vdos_windows_version, doc: /* The (MAJOR . MINOR) Windows version for DOS session on MS-Windows. */); #endif DEFVAR_LISP ("dos-display-scancodes", &Vdos_display_scancodes, doc: /* *Controls whether DOS raw keyboard events are displayed as you type. When non-nil, the keyboard scan-codes are displayed at the bottom right corner of the display (typically at the end of the mode line). The output format is: scan code:char code*modifiers. */); Vdos_display_scancodes = Qnil; DEFVAR_INT ("dos-hyper-key", &dos_hyper_key, doc: /* *If set to 1, use right ALT key as hyper key. If set to 2, use right CTRL key as hyper key. */); dos_hyper_key = 0; DEFVAR_INT ("dos-super-key", &dos_super_key, doc: /* *If set to 1, use right ALT key as super key. If set to 2, use right CTRL key as super key. */); dos_super_key = 0; DEFVAR_INT ("dos-keypad-mode", &dos_keypad_mode, doc: /* *Controls what key code is returned by a key in the numeric keypad. The `numlock ON' action is only taken if no modifier keys are pressed. The value is an integer constructed by adding the following bits together: 0x00 Digit key returns digit (if numlock ON) 0x01 Digit key returns kp-digit (if numlock ON) 0x02 Digit key returns M-digit (if numlock ON) 0x03 Digit key returns edit key (if numlock ON) 0x00 Grey key returns char (if numlock ON) 0x04 Grey key returns kp-key (if numlock ON) 0x00 Digit key returns digit (if numlock OFF) 0x10 Digit key returns kp-digit (if numlock OFF) 0x20 Digit key returns M-digit (if numlock OFF) 0x30 Digit key returns edit key (if numlock OFF) 0x00 Grey key returns char (if numlock OFF) 0x40 Grey key returns kp-key (if numlock OFF) 0x200 ALT-0..ALT-9 in top-row produces shifted codes. */); dos_keypad_mode = 0x75; DEFVAR_INT ("dos-keyboard-layout", &dos_keyboard_layout, doc: /* Contains the country code for the current keyboard layout. Use msdos-set-keyboard to select another keyboard layout. */); dos_keyboard_layout = 1; /* US */ DEFVAR_INT ("dos-decimal-point", &dos_decimal_point, doc: /* The character to produce when kp-decimal key is pressed. If non-zero, this variable contains the character to be returned when the decimal point key in the numeric keypad is pressed when Num Lock is on. If zero, the decimal point key returns the country code specific value. */); dos_decimal_point = 0; } #endif /* MSDOS */ /* arch-tag: f5ea8847-a014-42c9-83f5-7738ad640b17 (do not change this comment) */