I forgot to check in these changes for a long time. This adds
incomplete support for VGA console, and this is still very
buggy. Also, a lot of consideration is required for I18N,
UNICODE, and VGA font issues. Therefore, assume that this is
such that "better than nothing".
* font/manager.c: New file.
* include/pupa/font.h: Likewise.
* include/pupa/i386/pc/vga.h: Likewise.
* term/i386/pc/vga.c: Likewise.
* util/unifont2pff.rb: Likewise.
* conf/i386-pc.rmk (kernel_img_HEADERS): Added machine/vga.h.
(pkgdata_MODULES): Added vga.mod and font.mod.
(vga_mod_SOURCES): New variables.
(vga_mod_CFLAGS): Likewise.
(font_mod_SOURCES): Likewise.
(font_mod_CFLAGS): Likewise.
* include/pupa/err.h (PUPA_ERR_BAD_FONT): New constant.
* include/pupa/term.h: Include pupa/err.h.
(struct pupa_term): Added init and fini.
Changed the argument of putchar to pupa_uint32_t.
* include/pupa/i386/pc/console.h: Include pupa/symbol.h.
(pupa_console_real_putchar): New prototype.
(pupa_console_putchar): Removed.
(pupa_console_checkkey): Exported.
(pupa_console_getkey): Likewise.
* kern/misc.c (pupa_vsprintf): Add support for UNICODE
characters.
* kern/term.c (pupa_term_set_current): Rewritten.
(pupa_putchar): Likewise.
(pupa_putcode): New function.
* kern/i386/pc/startup.S (pupa_console_putchar): Renamed to ...
(pupa_console_real_putchar): ... this.
(pupa_vga_set_mode): New function.
(pupa_vga_get_font): Likewise.
* normal/command.c: Include pupa/term.h.
(terminal_command): New function.
(pupa_command_init): Register the command "terminal".
* normal/menu.c (DISP_LEFT): Changed to a UNICODE value.
(DISP_UP): Likewise.
(DISP_RIGHT): Likewise.
(DISP_DOWN): Likewise.
(DISP_HLINE): Likewise.
(DISP_VLINE): Likewise.
(DISP_UL): Likewise.
(DISP_UR): Likewise.
(DISP_LL): Likewise.
(DISP_LR): Likewise.
* term/i386/pc/console.c (pupa_console_putchar): New function.
* util/i386/pc/pupa-setup.c (setup): Define the internal
function find_first_partition_start at the top level, because GCC
3.0.x cannot compile internal functions in deeper scopes
correctly.
(find_root_device): Use lstat instead of stat.
Don't follow symbolic links.
Fix the path-constructing code.
* util/i386/pc/biosdisk.c [__linux__] (BLKFLSBUF): New macro.
(pupa_util_biosdisk_open) [__linux__]: Get the size of a device
by a BLKGETSIZE ioctl first, because block devices don't fill
the member st_mode of the structure stat on Linux.
[__linux__] (linux_find_partition): Use a temporary buffer
REAL_DEV for the working space. Copy it to DEV before returning.
(open_device) [__linux__]: Call ioctl with BLKFLSBUF to make the
buffer cache consistent.
(get_os_disk) [__linux__]: Use the length 5 instead of 4 for
strncmp. The previous value was merely wrong.
(pupa_util_biosdisk_get_pupa_dev): Use stat instead of lstat.
* fs/fat.c (pupa_fat_read_data): Shift 4 instead of 12 when the
FAT size is 12. The previous value was merely wrong.
* kern/main.c (pupa_main): Don't split the starting message from
newlines.
* kern/term.c (pupa_putchar): Put CR after LF instead of before
LF, because BIOS goes crazy about character attributes in this
case.
