Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  *    EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  *  S390 version
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  *    Copyright IBM Corp. 1999
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #ifndef _EBCDIC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #define _EBCDIC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) extern __u8 _ascebc_500[256];   /* ASCII -> EBCDIC 500 conversion table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) extern __u8 _ebcasc_500[256];   /* EBCDIC 500 -> ASCII conversion table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) extern __u8 _ascebc[256];   /* ASCII -> EBCDIC conversion table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) extern __u8 _ebcasc[256];   /* EBCDIC -> ASCII conversion table */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) extern __u8 _ebc_tolower[256]; /* EBCDIC -> lowercase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) extern __u8 _ebc_toupper[256]; /* EBCDIC -> uppercase */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) codepage_convert(const __u8 *codepage, volatile char *addr, unsigned long nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	if (nr-- <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	asm volatile(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		"	bras	1,1f\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		"	tr	0(1,%0),0(%2)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		"0:	tr	0(256,%0),0(%2)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 		"	la	%0,256(%0)\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 		"1:	ahi	%1,-256\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 		"	jnm	0b\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 		"	ex	%1,0(1)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 		: "+&a" (addr), "+&a" (nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 		: "a" (codepage) : "cc", "memory", "1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define ASCEBC(addr,nr) codepage_convert(_ascebc, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define EBCASC(addr,nr) codepage_convert(_ebcasc, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ASCEBC_500(addr,nr) codepage_convert(_ascebc_500, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define EBCASC_500(addr,nr) codepage_convert(_ebcasc_500, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define EBC_TOLOWER(addr,nr) codepage_convert(_ebc_tolower, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define EBC_TOUPPER(addr,nr) codepage_convert(_ebc_toupper, addr, nr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)