* term/i386/pc/serial.c (GRUB_SERIAL_PORT_NUM): New constant.
[!GRUB_MACHINE_PCBIOS] (serial_hw_io_addr): Add COM2 and COM3.
(serial_hw_get_port): Check validity of the port number.
(grub_cmd_serial): Check return value of serial_hw_get_port().
* include/grub/term.h (struct grub_term): Add `getcolor' function.
(grub_getcolor): New function.
* kern/term.c (grub_getcolor): New function.
* normal/menu.c (GRUB_COLOR_MENU_NORMAL): New macro.
(GRUB_COLOR_MENU_HIGHLIGHT): New macro.
(print_entry): Set normal and highlight colors to
`GRUB_COLOR_MENU_NORMAL' and `GRUB_COLOR_MENU_HIGHLIGHT',
respectively, before printing and restore them to old
values afterwards.
(grub_menu_init_page): Likewise. Fill an additional colored space
that would otherwise be left blank.
* term/efi/console.c (grub_console_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/i386/pc/console.c (grub_console_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/ieee1275/ofconsole.c (grub_ofconsole_getcolor): New function.
(struct grub_console_term.getcolor): New variable.
* term/i386/pc/serial.c (grub_serial_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/i386/pc/vesafb.c (grub_virtual_screen_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/i386/pc/vga.c (grub_vga_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* term/gfxterm.c (grub_virtual_screen_setcolor): Remove function.
(struct grub_console_term.setcolor): Remove variable.
* include/grub/i386/efi/machine.h: New file.
* include/grub/i386/linuxbios/machine.h: Likewise.
* include/grub/i386/pc/machine.h: Likewise.
* include/grub/powerpc/ieee1275/machine.h: Likewise.
* include/grub/sparc64/ieee1275/machine.h: Likewise.
* term/i386/pc/serial.c: Include <grub/machine/machine.h>.
(serial_hw_io_addr): New variable.
(serial_hw_get_port): Obtain port address from `serial_hw_io_addr'
instead of `(unsigned short *) 0x400'.