kernel-ark/arch/m68k/mvme16x/config.c
David Howells 40220c1a19 IRQ: Use the new typedef for interrupt handler function pointers
Use the new typedef for interrupt handler function pointers rather than
actually spelling out the full thing each time.  This was scripted with the
following small shell script:

#!/bin/sh
egrep -nHrl -e 'irqreturn_t[ 	]*[(][*]' $* |
while read i
do
    echo $i
    perl -pi -e 's/irqreturn_t\s*[(]\s*[*]\s*([_a-zA-Z0-9]*)\s*[)]\s*[(]\s*int\s*,\s*void\s*[*]\s*[)]/irq_handler_t \1/g' $i || exit $?
done

Signed-Off-By: David Howells <dhowells@redhat.com>
2006-10-09 12:19:47 +01:00

284 lines
7.3 KiB
C

/*
* arch/m68k/mvme16x/config.c
*
* Copyright (C) 1995 Richard Hirst [richard@sleepie.demon.co.uk]
*
* Based on:
*
* linux/amiga/config.c
*
* Copyright (C) 1993 Hamish Macdonald
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file README.legal in the main directory of this archive
* for more details.
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/linkage.h>
#include <linux/init.h>
#include <linux/major.h>
#include <linux/genhd.h>
#include <linux/rtc.h>
#include <linux/interrupt.h>
#include <asm/bootinfo.h>
#include <asm/system.h>
#include <asm/pgtable.h>
#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/traps.h>
#include <asm/rtc.h>
#include <asm/machdep.h>
#include <asm/mvme16xhw.h>
extern t_bdid mvme_bdid;
static MK48T08ptr_t volatile rtc = (MK48T08ptr_t)MVME_RTC_BASE;
static void mvme16x_get_model(char *model);
static int mvme16x_get_hardware_list(char *buffer);
extern void mvme16x_sched_init(irq_handler_t handler);
extern unsigned long mvme16x_gettimeoffset (void);
extern int mvme16x_hwclk (int, struct rtc_time *);
extern int mvme16x_set_clock_mmss (unsigned long);
extern void mvme16x_reset (void);
extern void mvme16x_waitbut(void);
int bcd2int (unsigned char b);
/* Save tick handler routine pointer, will point to do_timer() in
* kernel/sched.c, called via mvme16x_process_int() */
static irq_handler_t tick_handler;
unsigned short mvme16x_config;
int mvme16x_parse_bootinfo(const struct bi_record *bi)
{
if (bi->tag == BI_VME_TYPE || bi->tag == BI_VME_BRDINFO)
return 0;
else
return 1;
}
void mvme16x_reset(void)
{
printk ("\r\n\nCalled mvme16x_reset\r\n"
"\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r\r");
/* The string of returns is to delay the reset until the whole
* message is output. Assert reset bit in GCSR */
*(volatile char *)0xfff40107 = 0x80;
}
static void mvme16x_get_model(char *model)
{
p_bdid p = &mvme_bdid;
char suf[4];
suf[1] = p->brdsuffix[0];
suf[2] = p->brdsuffix[1];
suf[3] = '\0';
suf[0] = suf[1] ? '-' : '\0';
sprintf(model, "Motorola MVME%x%s", p->brdno, suf);
}
static int mvme16x_get_hardware_list(char *buffer)
{
p_bdid p = &mvme_bdid;
int len = 0;
if (p->brdno == 0x0162 || p->brdno == 0x0172)
{
unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
len += sprintf (buffer+len, "VMEchip2 %spresent\n",
rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
len += sprintf (buffer+len, "SCSI interface %spresent\n",
rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
len += sprintf (buffer+len, "Ethernet i/f %spresent\n",
rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
}
else
*buffer = '\0';
return (len);
}
/*
* This function is called during kernel startup to initialize
* the mvme16x IRQ handling routines. Should probably ensure
* that the base vectors for the VMEChip2 and PCCChip2 are valid.
*/
static void mvme16x_init_IRQ (void)
{
m68k_setup_user_interrupt(VEC_USER, 192, NULL);
}
#define pcc2chip ((volatile u_char *)0xfff42000)
#define PccSCCMICR 0x1d
#define PccSCCTICR 0x1e
#define PccSCCRICR 0x1f
void __init config_mvme16x(void)
{
p_bdid p = &mvme_bdid;
char id[40];
mach_max_dma_address = 0xffffffff;
mach_sched_init = mvme16x_sched_init;
mach_init_IRQ = mvme16x_init_IRQ;
mach_gettimeoffset = mvme16x_gettimeoffset;
mach_hwclk = mvme16x_hwclk;
mach_set_clock_mmss = mvme16x_set_clock_mmss;
mach_reset = mvme16x_reset;
mach_get_model = mvme16x_get_model;
mach_get_hardware_list = mvme16x_get_hardware_list;
/* Report board revision */
if (strncmp("BDID", p->bdid, 4))
{
printk ("\n\nBug call .BRD_ID returned garbage - giving up\n\n");
while (1)
;
}
/* Board type is only set by newer versions of vmelilo/tftplilo */
if (vme_brdtype == 0)
vme_brdtype = p->brdno;
mvme16x_get_model(id);
printk ("\nBRD_ID: %s BUG %x.%x %02x/%02x/%02x\n", id, p->rev>>4,
p->rev&0xf, p->yr, p->mth, p->day);
if (p->brdno == 0x0162 || p->brdno == 0x172)
{
unsigned char rev = *(unsigned char *)MVME162_VERSION_REG;
mvme16x_config = rev | MVME16x_CONFIG_GOT_SCCA;
printk ("MVME%x Hardware status:\n", p->brdno);
printk (" CPU Type 68%s040\n",
rev & MVME16x_CONFIG_GOT_FPU ? "" : "LC");
printk (" CPU clock %dMHz\n",
rev & MVME16x_CONFIG_SPEED_32 ? 32 : 25);
printk (" VMEchip2 %spresent\n",
rev & MVME16x_CONFIG_NO_VMECHIP2 ? "NOT " : "");
printk (" SCSI interface %spresent\n",
rev & MVME16x_CONFIG_NO_SCSICHIP ? "NOT " : "");
printk (" Ethernet interface %spresent\n",
rev & MVME16x_CONFIG_NO_ETHERNET ? "NOT " : "");
}
else
{
mvme16x_config = MVME16x_CONFIG_GOT_LP | MVME16x_CONFIG_GOT_CD2401;
/* Dont allow any interrupts from the CD2401 until the interrupt */
/* handlers are installed */
pcc2chip[PccSCCMICR] = 0x10;
pcc2chip[PccSCCTICR] = 0x10;
pcc2chip[PccSCCRICR] = 0x10;
}
}
static irqreturn_t mvme16x_abort_int (int irq, void *dev_id)
{
p_bdid p = &mvme_bdid;
unsigned long *new = (unsigned long *)vectors;
unsigned long *old = (unsigned long *)0xffe00000;
volatile unsigned char uc, *ucp;
if (p->brdno == 0x0162 || p->brdno == 0x172)
{
ucp = (volatile unsigned char *)0xfff42043;
uc = *ucp | 8;
*ucp = uc;
}
else
{
*(volatile unsigned long *)0xfff40074 = 0x40000000;
}
*(new+4) = *(old+4); /* Illegal instruction */
*(new+9) = *(old+9); /* Trace */
*(new+47) = *(old+47); /* Trap #15 */
if (p->brdno == 0x0162 || p->brdno == 0x172)
*(new+0x5e) = *(old+0x5e); /* ABORT switch */
else
*(new+0x6e) = *(old+0x6e); /* ABORT switch */
return IRQ_HANDLED;
}
static irqreturn_t mvme16x_timer_int (int irq, void *dev_id)
{
*(volatile unsigned char *)0xfff4201b |= 8;
return tick_handler(irq, dev_id);
}
void mvme16x_sched_init (irq_handler_t timer_routine)
{
p_bdid p = &mvme_bdid;
int irq;
tick_handler = timer_routine;
/* Using PCCchip2 or MC2 chip tick timer 1 */
*(volatile unsigned long *)0xfff42008 = 0;
*(volatile unsigned long *)0xfff42004 = 10000; /* 10ms */
*(volatile unsigned char *)0xfff42017 |= 3;
*(volatile unsigned char *)0xfff4201b = 0x16;
if (request_irq(MVME16x_IRQ_TIMER, mvme16x_timer_int, 0,
"timer", mvme16x_timer_int))
panic ("Couldn't register timer int");
if (p->brdno == 0x0162 || p->brdno == 0x172)
irq = MVME162_IRQ_ABORT;
else
irq = MVME167_IRQ_ABORT;
if (request_irq(irq, mvme16x_abort_int, 0,
"abort", mvme16x_abort_int))
panic ("Couldn't register abort int");
}
/* This is always executed with interrupts disabled. */
unsigned long mvme16x_gettimeoffset (void)
{
return (*(volatile unsigned long *)0xfff42008);
}
int bcd2int (unsigned char b)
{
return ((b>>4)*10 + (b&15));
}
int mvme16x_hwclk(int op, struct rtc_time *t)
{
#warning check me!
if (!op) {
rtc->ctrl = RTC_READ;
t->tm_year = bcd2int (rtc->bcd_year);
t->tm_mon = bcd2int (rtc->bcd_mth);
t->tm_mday = bcd2int (rtc->bcd_dom);
t->tm_hour = bcd2int (rtc->bcd_hr);
t->tm_min = bcd2int (rtc->bcd_min);
t->tm_sec = bcd2int (rtc->bcd_sec);
rtc->ctrl = 0;
}
return 0;
}
int mvme16x_set_clock_mmss (unsigned long nowtime)
{
return 0;
}