88278ca27a
This patch removes the CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
131 lines
2.7 KiB
C
131 lines
2.7 KiB
C
/*
|
|
* 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 <asm/openprom.h>
|
|
#include <asm/oplib.h>
|
|
#include <asm/auxio.h>
|
|
#include <asm/system.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);
|
|
}
|
|
|
|
/* 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);
|
|
}
|
|
|
|
/* Drop into the prom, with the chance to continue with the 'go'
|
|
* prom command.
|
|
*/
|
|
void
|
|
prom_cmdline(void)
|
|
{
|
|
extern void install_obp_ticker(void);
|
|
extern void install_linux_ticker(void);
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&prom_lock, flags);
|
|
install_obp_ticker();
|
|
(*(romvec->pv_abort))();
|
|
restore_current();
|
|
install_linux_ticker();
|
|
spin_unlock_irqrestore(&prom_lock, flags);
|
|
#ifdef CONFIG_SUN_AUXIO
|
|
set_auxio(AUXIO_LED, 0);
|
|
#endif
|
|
}
|
|
|
|
/* Drop into the prom, but completely terminate the program.
|
|
* No chance of continuing.
|
|
*/
|
|
void
|
|
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 */
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
|
|
/* Get the major prom version number. */
|
|
int
|
|
prom_version(void)
|
|
{
|
|
return romvec->pv_romvers;
|
|
}
|
|
|
|
/* Get the prom plugin-revision. */
|
|
int
|
|
prom_getrev(void)
|
|
{
|
|
return prom_rev;
|
|
}
|
|
|
|
/* Get the prom firmware print revision. */
|
|
int
|
|
prom_getprev(void)
|
|
{
|
|
return prom_prev;
|
|
}
|