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)  * printf.c:  Internal prom library printf facility.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) /* This routine is internal to the prom library, no one else should know
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  * about or use it!  It's simple and smelly anyway....
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/openprom.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <asm/oplib.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #ifdef CONFIG_KGDB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) extern int kgdb_initialized;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) static char ppbuf[1024];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) prom_printf(char *fmt, ...)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 	va_list args;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	char ch, *bptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	va_start(args, fmt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #ifdef CONFIG_KGDB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	ppbuf[0] = 'O';
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 	i = vsprintf(ppbuf + 1, fmt, args) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	i = vsprintf(ppbuf, fmt, args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	bptr = ppbuf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #ifdef CONFIG_KGDB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 	if (kgdb_initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 		pr_info("kgdb_initialized = %d\n", kgdb_initialized);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		putpacket(bptr, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	while((ch = *(bptr++)) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 		if(ch == '\n')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 			prom_putchar('\r');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 		prom_putchar(ch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) 	va_end(args);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 	return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) }