Release 4.14 arch/sparc/prom/console_32.c

// SPDX-License-Identifier: GPL-2.0
/*
 * console.c: Routines that deal with sending and receiving IO
 *            to/from the current console device using the PROM.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 * Copyright (C) 1998 Pete Zaitcev <zaitcev@yahoo.com>
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
#include <linux/string.h>

extern void restore_current(void);

/* Non blocking put character to console device, returns -1 if
 * unsuccessful.
 */


static int prom_nbputchar(const char *buf)
{
	unsigned long flags;
	int i = -1;

	spin_lock_irqsave(&prom_lock, flags);
	switch(prom_vers) {
	case PROM_V0:
		if ((*(romvec->pv_nbputchar))(*buf))
			i = 1;
		break;
	case PROM_V2:
	case PROM_V3:
		if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout,
							  buf, 0x1) == 1)
			i = 1;
		break;
	default:
		break;
	}
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);
	return i; /* Ugh, we could spin forever on unsupported proms ;( */
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
98
86.73%
5
62.50%
David S. Miller
8
7.08%
2
25.00%
Julian Calaby
7
6.19%
1
12.50%
Total
113
100.00%
8
100.00%



void prom_console_write_buf(const char *buf, int len)
{
	while (len) {
		int n = prom_nbputchar(buf);
		if (n < 0)
			continue;
		len--;
		buf++;
	}
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
David S. Miller
27
67.50%
2
50.00%
Linus Torvalds (pre-git)
11
27.50%
1
25.00%
Julian Calaby
2
5.00%
1
25.00%
Total
40
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
135
74.59%
6
50.00%
David S. Miller
35
19.34%
3
25.00%
Julian Calaby
9
4.97%
1
8.33%
Adrian Bunk
1
0.55%
1
8.33%
Greg Kroah-Hartman
1
0.55%
1
8.33%
Total
181
100.00%
12
100.00%
Directory: arch/sparc/prom

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