Release 4.14 arch/sparc/prom/misc_32.c

// SPDX-License-Identifier: GPL-2.0
/*
 * misc.c:  Miscellaneous prom functions that don't belong
 *          anywhere else.
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/module.h>

#include <asm/openprom.h>
#include <asm/oplib.h>
#include <asm/auxio.h>

extern void restore_current(void);


DEFINE_SPINLOCK(prom_lock);

/* Reset and reboot the machine with the command 'bcommand'. */

void

prom_reboot(char *bcommand)
{
	unsigned long flags;
	spin_lock_irqsave(&prom_lock, flags);
	(*(romvec->pv_reboot))(bcommand);
	/* Never get here. */
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
45
100.00%
4
100.00%
Total
45
100.00%
4
100.00%

/* Forth evaluate the expression contained in 'fstring'. */

void

prom_feval(char *fstring)
{
	unsigned long flags;
	if(!fstring || fstring[0] == 0)
		return;
	spin_lock_irqsave(&prom_lock, flags);
	if(prom_vers == PROM_V0)
		(*(romvec->pv_fortheval.v0_eval))(strlen(fstring), fstring);
	else
		(*(romvec->pv_fortheval.v2_eval))(fstring);
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
85
100.00%
4
100.00%
Total
85
100.00%
4
100.00%


EXPORT_SYMBOL(prom_feval);

/* Drop into the prom, with the chance to continue with the 'go'
 * prom command.
 */

void

prom_cmdline(void)
{
	unsigned long flags;

	spin_lock_irqsave(&prom_lock, flags);
	(*(romvec->pv_abort))();
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);
	set_auxio(AUXIO_LED, 0);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
42
87.50%
4
80.00%
Eric Brower
6
12.50%
1
20.00%
Total
48
100.00%
5
100.00%

/* Drop into the prom, but completely terminate the program.
 * No chance of continuing.
 */

void __noreturn

prom_halt(void)
{
	unsigned long flags;
again:
	spin_lock_irqsave(&prom_lock, flags);
	(*(romvec->pv_halt))();
	/* Never get here. */
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);
	goto again; /* PROM is out to get me -DaveM */
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
48
97.96%
5
83.33%
Sam Ravnborg
1
2.04%
1
16.67%
Total
49
100.00%
6
100.00%


typedef void (*sfunc_t)(void);

/* Set prom sync handler to call function 'funcp'. */

void

prom_setsync(sfunc_t funcp)
{
	if(!funcp) return;
	*romvec->pv_synchook = funcp;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
21
100.00%
1
100.00%
Total
21
100.00%
1
100.00%

/* Get the idprom and stuff it into buffer 'idbuf'.  Returns the
 * format type.  'num_bytes' is the number of bytes that your idbuf
 * has space for.  Returns 0xff on error.
 */

unsigned char

prom_get_idprom(char *idbuf, int num_bytes)
{
	int len;

	len = prom_getproplen(prom_root_node, "idprom");
	if((len>num_bytes) || (len==-1)) return 0xff;
	if(!prom_getproperty(prom_root_node, "idprom", idbuf, num_bytes))
		return idbuf[0];

	return 0xff;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
66
100.00%
2
100.00%
Total
66
100.00%
2
100.00%

/* Get the major prom version number. */

int

prom_version(void)
{
	return romvec->pv_romvers;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
12
100.00%
1
100.00%
Total
12
100.00%
1
100.00%

/* Get the prom plugin-revision. */

int

prom_getrev(void)
{
	return prom_rev;
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
10
100.00%
1
100.00%
Total
10
100.00%
1
100.00%

/* Get the prom firmware print revision. */

int

prom_getprev(void)
{
	return prom_prev;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
10
100.00%
1
100.00%
Total
10
100.00%
1
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
384
94.81%
6
50.00%
Sam Ravnborg
9
2.22%
2
16.67%
Eric Brower
6
1.48%
1
8.33%
Thomas Gleixner
4
0.99%
1
8.33%
Greg Kroah-Hartman
1
0.25%
1
8.33%
Adrian Bunk
1
0.25%
1
8.33%
Total
405
100.00%
12
100.00%
Directory: arch/sparc/prom

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.