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#ifndef _IPXE_KEYS_H
#define _IPXE_KEYS_H
/** @file
*
* Key definitions
*
*/
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
/*
* Symbolic names for some standard ASCII characters
*
*/
#define NUL 0x00
#define CTRL_A 0x01
#define CTRL_B 0x02
#define CTRL_C 0x03
#define CTRL_D 0x04
#define CTRL_E 0x05
#define CTRL_F 0x06
#define CTRL_G 0x07
#define CTRL_H 0x08
#define CTRL_I 0x09
#define CTRL_J 0x0a
#define CTRL_K 0x0b
#define CTRL_L 0x0c
#define CTRL_M 0x0d
#define CTRL_N 0x0e
#define CTRL_O 0x0f
#define CTRL_P 0x10
#define CTRL_Q 0x11
#define CTRL_R 0x12
#define CTRL_S 0x13
#define CTRL_T 0x14
#define CTRL_U 0x15
#define CTRL_V 0x16
#define CTRL_W 0x17
#define CTRL_X 0x18
#define CTRL_Y 0x19
#define CTRL_Z 0x1a
#define BACKSPACE CTRL_H
#define TAB CTRL_I
#define LF CTRL_J
#define CR CTRL_M
#define ESC 0x1b
/*
* Special keys outside the normal Unicode range
*
* The names are chosen to match those used by curses. The values are
* chosen to facilitate easy conversion from a received ANSI escape
* sequence to a KEY_XXX constant.
*
* Note that the values are exposed to iPXE commands via parse_key()
* and therefore may not be changed without breaking existing scripts.
*/
/**
* Minimum value for special keypresses
*
* This value is chosen to lie above the maximum Unicode code point
* value 0x10ffff.
*/
#define KEY_MIN 0x110000
/**
* Construct relative key value for special key
*
* @v key Key value
* @ret rkey Relative key value
*/
#define KEY_REL( key ) ( (key) - KEY_MIN )
/**
* Construct ANSI escape sequence key value
*
* @v n ANSI escape sequence numeric portion, or 0 for none
* @v terminator ANSI escape sequence terminating character
* @ret key Key value
*/
#define KEY_ANSI( n, terminator ) \
( KEY_MIN + ( ( (n) + 1 ) << 8 ) + (terminator) )
/**
* Extract ANSI escape sequence numeric portion
*
* @v key Key value (or relative key value)
* @ret n ANSI escape sequence numeric portion, or 0 for none
*/
#define KEY_ANSI_N( key ) ( ( ( (key) >> 8 ) & 0xff ) - 1 )
/**
* Extract ANSI escape sequence terminating character
*
* @v key Key value (or relative key value)
* @ret terminator ANSI escape sequence terminating character
*/
#define KEY_ANSI_TERMINATOR( key ) ( (key) & 0xff )
#define KEY_UP KEY_ANSI ( 0, 'A' ) /**< Up arrow */
#define KEY_DOWN KEY_ANSI ( 0, 'B' ) /**< Down arrow */
#define KEY_RIGHT KEY_ANSI ( 0, 'C' ) /**< Right arrow */
#define KEY_LEFT KEY_ANSI ( 0, 'D' ) /**< Left arrow */
#define KEY_END KEY_ANSI ( 0, 'F' ) /**< End */
#define KEY_HOME KEY_ANSI ( 0, 'H' ) /**< Home */
#define KEY_IC KEY_ANSI ( 2, '~' ) /**< Insert */
#define KEY_DC KEY_ANSI ( 3, '~' ) /**< Delete */
#define KEY_PPAGE KEY_ANSI ( 5, '~' ) /**< Page up */
#define KEY_NPAGE KEY_ANSI ( 6, '~' ) /**< Page down */
#define KEY_F5 KEY_ANSI ( 15, '~' ) /**< F5 */
#define KEY_F6 KEY_ANSI ( 17, '~' ) /**< F6 */
#define KEY_F7 KEY_ANSI ( 18, '~' ) /**< F7 */
#define KEY_F8 KEY_ANSI ( 19, '~' ) /**< F8 (for PXE) */
#define KEY_F9 KEY_ANSI ( 20, '~' ) /**< F9 */
#define KEY_F10 KEY_ANSI ( 21, '~' ) /**< F10 */
#define KEY_F11 KEY_ANSI ( 23, '~' ) /**< F11 */
#define KEY_F12 KEY_ANSI ( 24, '~' ) /**< F12 */
/* Not in the [KEY_MIN,KEY_MAX] range; terminals seem to send these as
* normal ASCII values.
*/
#define KEY_BACKSPACE BACKSPACE
#define KEY_ENTER LF
#endif /* _IPXE_KEYS_H */
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