3 files changed, 330 insertions, 502 deletions

diff --git a/arch/m68k/q40/README b/arch/m68k/q40/README
index 6bdbf487957..93f4c4cd3c4 100644
--- a/arch/m68k/q40/README
+++ b/arch/m68k/q40/README
@@ -3,7 +3,7 @@ Linux for the Q40
 
 You may try http://www.geocities.com/SiliconValley/Bay/2602/ for
 some up to date information. Booter and other tools will be also
-available from this place or ftp.uni-erlangen.de/linux/680x0/q40/
+available from this place or http://ftp.uni-erlangen.de/pub/unix/Linux/680x0/q40/
 and mirrors.
 
 Hints to documentation usually refer to the linux source tree in
@@ -31,7 +31,7 @@ drivers used by the Q40, apart from the very obvious (console etc.):
 		char/joystick/*		# most of this should work, not
 				        # in default config.in
 	        block/q40ide.c		# startup for ide
-		      ide*		# see Documentation/ide.txt
+		      ide*		# see Documentation/ide/ide.txt
 		      floppy.c		# normal PC driver, DMA emu in asm/floppy.h
 					# and arch/m68k/kernel/entry.S
 					# see drivers/block/README.fd
@@ -89,7 +89,7 @@ The main interrupt register IIRQ_REG will indicate whether an IRQ was internal
 or from some ISA devices, EIRQ_REG can distinguish up to 8 ISA IRQs.
 
 The Q40 custom chip is programmable to provide 2 periodic timers:
-	- 50 or 200 Hz - level 2, !!THIS CANT BE DISABLED!!
+	- 50 or 200 Hz - level 2, !!THIS CAN'T BE DISABLED!!
 	- 10 or 20 KHz - level 4, used for dma-sound
 
 Linux uses the 200 Hz interrupt for timer and beep by default.
diff --git a/arch/m68k/q40/config.c b/arch/m68k/q40/config.c
index 02b626bae4a..e90fe903613 100644
--- a/arch/m68k/q40/config.c
+++ b/arch/m68k/q40/config.c
@@ -12,7 +12,6 @@
  * for more details.
  */
 
-#include <linux/config.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
@@ -24,11 +23,12 @@
 #include <linux/serial_reg.h>
 #include <linux/rtc.h>
 #include <linux/vt_kern.h>
+#include <linux/bcd.h>
+#include <linux/platform_device.h>
 
 #include <asm/io.h>
 #include <asm/rtc.h>
 #include <asm/bootinfo.h>
-#include <asm/system.h>
 #include <asm/pgtable.h>
 #include <asm/setup.h>
 #include <asm/irq.h>
@@ -36,43 +36,29 @@
 #include <asm/machdep.h>
 #include <asm/q40_master.h>
 
-extern void floppy_setup(char *str, int *ints);
-
-extern irqreturn_t q40_process_int (int level, struct pt_regs *regs);
-extern irqreturn_t (*q40_default_handler[]) (int, void *, struct pt_regs *);  /* added just for debugging */
-extern void q40_init_IRQ (void);
-extern void q40_free_irq (unsigned int, void *);
-extern int  show_q40_interrupts (struct seq_file *, void *);
-extern void q40_enable_irq (unsigned int);
-extern void q40_disable_irq (unsigned int);
+extern void q40_init_IRQ(void);
 static void q40_get_model(char *model);
-static int  q40_get_hardware_list(char *buffer);
-extern int  q40_request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *), unsigned long flags, const char *devname, void *dev_id);
-extern void q40_sched_init(irqreturn_t (*handler)(int, void *, struct pt_regs *));
-
-extern unsigned long q40_gettimeoffset (void);
-extern int q40_hwclk (int, struct rtc_time *);
-extern unsigned int q40_get_ss (void);
-extern int q40_set_clock_mmss (unsigned long);
+extern void q40_sched_init(irq_handler_t handler);
+
+static u32 q40_gettimeoffset(void);
+static int q40_hwclk(int, struct rtc_time *);
+static unsigned int q40_get_ss(void);
+static int q40_set_clock_mmss(unsigned long);
 static int q40_get_rtc_pll(struct rtc_pll_info *pll);
 static int q40_set_rtc_pll(struct rtc_pll_info *pll);
-extern void q40_reset (void);
-void q40_halt(void);
-extern void q40_waitbut(void);
-void q40_set_vectors (void);
 
-extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/ );
+extern void q40_mksound(unsigned int /*freq*/, unsigned int /*ticks*/);
 
-extern char m68k_debug_device[];
 static void q40_mem_console_write(struct console *co, const char *b,
-				    unsigned int count);
+				  unsigned int count);
 
 extern int ql_ticks;
 
 static struct console q40_console_driver = {
-	.name =		"debug",
-	.flags =	CON_PRINTBUFFER,
-	.index =	-1,
+	.name	= "debug",
+	.write	= q40_mem_console_write,
+	.flags	= CON_PRINTBUFFER,
+	.index	= -1,
 };
 
 
@@ -83,160 +69,144 @@ static int _cpleft;
 static void q40_mem_console_write(struct console *co, const char *s,
 				  unsigned int count)
 {
-  char *p=(char *)s;
-
-  if (count<_cpleft)
-    while (count-- >0){
-      *q40_mem_cptr=*p++;
-      q40_mem_cptr+=4;
-      _cpleft--;
-    }
+	const char *p = s;
+
+	if (count < _cpleft) {
+		while (count-- > 0) {
+			*q40_mem_cptr = *p++;
+			q40_mem_cptr += 4;
+			_cpleft--;
+		}
+	}
+}
+
+static int __init q40_debug_setup(char *arg)
+{
+	/* useful for early debugging stages - writes kernel messages into SRAM */
+	if (MACH_IS_Q40 && !strncmp(arg, "mem", 3)) {
+		/*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/
+		_cpleft = 2000 - ((long)q40_mem_cptr-0xff020000) / 4;
+		register_console(&q40_console_driver);
+	}
+	return 0;
 }
+
+early_param("debug", q40_debug_setup);
+
 #if 0
 void printq40(char *str)
 {
-  int l=strlen(str);
-  char *p=q40_mem_cptr;
-
-  while (l-- >0 && _cpleft-- >0)
-    {
-      *p=*str++;
-      p+=4;
-    }
-  q40_mem_cptr=p;
+	int l = strlen(str);
+	char *p = q40_mem_cptr;
+
+	while (l-- > 0 && _cpleft-- > 0) {
+		*p = *str++;
+		p += 4;
+	}
+	q40_mem_cptr = p;
 }
 #endif
 
-static int halted=0;
+static int halted;
 
 #ifdef CONFIG_HEARTBEAT
 static void q40_heartbeat(int on)
 {
-  if (halted) return;
+	if (halted)
+		return;
 
-  if (on)
-    Q40_LED_ON();
-  else
-    Q40_LED_OFF();
+	if (on)
+		Q40_LED_ON();
+	else
+		Q40_LED_OFF();
 }
 #endif
 
-void q40_reset(void)
+static void q40_reset(void)
 {
-        halted=1;
-        printk ("\n\n*******************************************\n"
-		"Called q40_reset : press the RESET button!! \n"
+        halted = 1;
+        printk("\n\n*******************************************\n"
+		"Called q40_reset : press the RESET button!!\n"
 		"*******************************************\n");
 	Q40_LED_ON();
-	while(1) ;
+	while (1)
+		;
 }
-void q40_halt(void)
+
+static void q40_halt(void)
 {
-        halted=1;
-        printk ("\n\n*******************\n"
-		    "  Called q40_halt\n"
-		    "*******************\n");
+        halted = 1;
+        printk("\n\n*******************\n"
+		   "  Called q40_halt\n"
+		   "*******************\n");
 	Q40_LED_ON();
-	while(1) ;
+	while (1)
+		;
 }
 
 static void q40_get_model(char *model)
 {
-    sprintf(model, "Q40");
+	sprintf(model, "Q40");
 }
 
-/* No hardware options on Q40? */
-
-static int q40_get_hardware_list(char *buffer)
+static unsigned int serports[] =
 {
-    *buffer = '\0';
-    return 0;
-}
+	0x3f8,0x2f8,0x3e8,0x2e8,0
+};
 
-static unsigned int serports[]={0x3f8,0x2f8,0x3e8,0x2e8,0};
-void q40_disable_irqs(void)
+static void __init q40_disable_irqs(void)
 {
-  unsigned i,j;
+	unsigned i, j;
 
-  j=0;
-  while((i=serports[j++])) outb(0,i+UART_IER);
-  master_outb(0,EXT_ENABLE_REG);
-  master_outb(0,KEY_IRQ_ENABLE_REG);
+	j = 0;
+	while ((i = serports[j++]))
+		outb(0, i + UART_IER);
+	master_outb(0, EXT_ENABLE_REG);
+	master_outb(0, KEY_IRQ_ENABLE_REG);
 }
 
 void __init config_q40(void)
 {
-    mach_sched_init      = q40_sched_init;
-
-    mach_init_IRQ        = q40_init_IRQ;
-    mach_gettimeoffset   = q40_gettimeoffset;
-    mach_hwclk           = q40_hwclk;
-    mach_get_ss          = q40_get_ss;
-    mach_get_rtc_pll     = q40_get_rtc_pll;
-    mach_set_rtc_pll     = q40_set_rtc_pll;
-    mach_set_clock_mmss	 = q40_set_clock_mmss;
-
-    mach_reset		 = q40_reset;
-    mach_free_irq	 = q40_free_irq;
-    mach_process_int	 = q40_process_int;
-    mach_get_irq_list	 = show_q40_interrupts;
-    mach_request_irq	 = q40_request_irq;
-    enable_irq		 = q40_enable_irq;
-    disable_irq          = q40_disable_irq;
-    mach_default_handler = &q40_default_handler;
-    mach_get_model       = q40_get_model;
-    mach_get_hardware_list = q40_get_hardware_list;
+	mach_sched_init = q40_sched_init;
+
+	mach_init_IRQ = q40_init_IRQ;
+	arch_gettimeoffset = q40_gettimeoffset;
+	mach_hwclk = q40_hwclk;
+	mach_get_ss = q40_get_ss;
+	mach_get_rtc_pll = q40_get_rtc_pll;
+	mach_set_rtc_pll = q40_set_rtc_pll;
+	mach_set_clock_mmss = q40_set_clock_mmss;
+
+	mach_reset = q40_reset;
+	mach_get_model = q40_get_model;
 
 #if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
-    mach_beep            = q40_mksound;
+	mach_beep = q40_mksound;
 #endif
 #ifdef CONFIG_HEARTBEAT
-    mach_heartbeat = q40_heartbeat;
-#endif
-    mach_halt = q40_halt;
-#ifdef CONFIG_DUMMY_CONSOLE
-    conswitchp = &dummy_con;
+	mach_heartbeat = q40_heartbeat;
 #endif
+	mach_halt = q40_halt;
 
-    /* disable a few things that SMSQ might have left enabled */
-    q40_disable_irqs();
-
-    /* no DMA at all, but ide-scsi requires it.. make sure
-     * all physical RAM fits into the boundary - otherwise
-     * allocator may play costly and useless tricks */
-    mach_max_dma_address = 1024*1024*1024;
-
-    /* useful for early debugging stages - writes kernel messages into SRAM */
-    if (!strncmp( m68k_debug_device,"mem",3 ))
-      {
-	/*printk("using NVRAM debug, q40_mem_cptr=%p\n",q40_mem_cptr);*/
-	_cpleft=2000-((long)q40_mem_cptr-0xff020000)/4;
-	q40_console_driver.write = q40_mem_console_write;
-	register_console(&q40_console_driver);
-      }
-}
-
+	/* disable a few things that SMSQ might have left enabled */
+	q40_disable_irqs();
 
-int q40_parse_bootinfo(const struct bi_record *rec)
-{
-  return 1;
+	/* no DMA at all, but ide-scsi requires it.. make sure
+	 * all physical RAM fits into the boundary - otherwise
+	 * allocator may play costly and useless tricks */
+	mach_max_dma_address = 1024*1024*1024;
 }
 
 
-static inline unsigned char bcd2bin (unsigned char b)
+int __init q40_parse_bootinfo(const struct bi_record *rec)
 {
-	return ((b>>4)*10 + (b&15));
-}
-
-static inline unsigned char bin2bcd (unsigned char b)
-{
-	return (((b/10)*16) + (b%10));
+	return 1;
 }
 
 
-unsigned long q40_gettimeoffset (void)
+static u32 q40_gettimeoffset(void)
 {
-    return 5000*(ql_ticks!=0);
+	return 5000 * (ql_ticks != 0) * 1000;
 }
 
 
@@ -255,11 +225,11 @@ unsigned long q40_gettimeoffset (void)
  * };
  */
 
-int q40_hwclk(int op, struct rtc_time *t)
+static int q40_hwclk(int op, struct rtc_time *t)
 {
-        if (op)
-	{	/* Write.... */
-	        Q40_RTC_CTRL |= Q40_RTC_WRITE;
+	if (op) {
+		/* Write.... */
+		Q40_RTC_CTRL |= Q40_RTC_WRITE;
 
 		Q40_RTC_SECS = bin2bcd(t->tm_sec);
 		Q40_RTC_MINS = bin2bcd(t->tm_min);
@@ -270,31 +240,29 @@ int q40_hwclk(int op, struct rtc_time *t)
 		if (t->tm_wday >= 0)
 			Q40_RTC_DOW = bin2bcd(t->tm_wday+1);
 
-	        Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
-	}
-	else
-	{	/* Read....  */
-	  Q40_RTC_CTRL |= Q40_RTC_READ;
-
-	  t->tm_year = bcd2bin (Q40_RTC_YEAR);
-	  t->tm_mon  = bcd2bin (Q40_RTC_MNTH)-1;
-	  t->tm_mday = bcd2bin (Q40_RTC_DATE);
-	  t->tm_hour = bcd2bin (Q40_RTC_HOUR);
-	  t->tm_min  = bcd2bin (Q40_RTC_MINS);
-	  t->tm_sec  = bcd2bin (Q40_RTC_SECS);
-
-	  Q40_RTC_CTRL &= ~(Q40_RTC_READ);
-
-	  if (t->tm_year < 70)
-	    t->tm_year += 100;
-	  t->tm_wday = bcd2bin(Q40_RTC_DOW)-1;
-
+		Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
+	} else {
+		/* Read....  */
+		Q40_RTC_CTRL |= Q40_RTC_READ;
+
+		t->tm_year = bcd2bin (Q40_RTC_YEAR);
+		t->tm_mon  = bcd2bin (Q40_RTC_MNTH)-1;
+		t->tm_mday = bcd2bin (Q40_RTC_DATE);
+		t->tm_hour = bcd2bin (Q40_RTC_HOUR);
+		t->tm_min  = bcd2bin (Q40_RTC_MINS);
+		t->tm_sec  = bcd2bin (Q40_RTC_SECS);
+
+		Q40_RTC_CTRL &= ~(Q40_RTC_READ);
+
+		if (t->tm_year < 70)
+			t->tm_year += 100;
+		t->tm_wday = bcd2bin(Q40_RTC_DOW)-1;
 	}
 
 	return 0;
 }
 
-unsigned int q40_get_ss(void)
+static unsigned int q40_get_ss(void)
 {
 	return bcd2bin(Q40_RTC_SECS);
 }
@@ -304,29 +272,25 @@ unsigned int q40_get_ss(void)
  * clock is out by > 30 minutes.  Logic lifted from atari code.
  */
 
-int q40_set_clock_mmss (unsigned long nowtime)
+static int q40_set_clock_mmss(unsigned long nowtime)
 {
 	int retval = 0;
 	short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;
 
 	int rtc_minutes;
 
+	rtc_minutes = bcd2bin(Q40_RTC_MINS);
 
-	rtc_minutes = bcd2bin (Q40_RTC_MINS);
-
-	if ((rtc_minutes < real_minutes
-		? real_minutes - rtc_minutes
-			: rtc_minutes - real_minutes) < 30)
-	{
-	        Q40_RTC_CTRL |= Q40_RTC_WRITE;
+	if ((rtc_minutes < real_minutes ?
+	     real_minutes - rtc_minutes :
+	     rtc_minutes - real_minutes) < 30) {
+		Q40_RTC_CTRL |= Q40_RTC_WRITE;
 		Q40_RTC_MINS = bin2bcd(real_minutes);
 		Q40_RTC_SECS = bin2bcd(real_seconds);
 		Q40_RTC_CTRL &= ~(Q40_RTC_WRITE);
-	}
-	else
+	} else
 		retval = -1;
 
-
 	return retval;
 }
 
@@ -337,21 +301,23 @@ int q40_set_clock_mmss (unsigned long nowtime)
 
 static int q40_get_rtc_pll(struct rtc_pll_info *pll)
 {
-	int tmp=Q40_RTC_CTRL;
+	int tmp = Q40_RTC_CTRL;
+
 	pll->pll_value = tmp & Q40_RTC_PLL_MASK;
 	if (tmp & Q40_RTC_PLL_SIGN)
 		pll->pll_value = -pll->pll_value;
-	pll->pll_max=31;
-	pll->pll_min=-31;
-	pll->pll_posmult=512;
-	pll->pll_negmult=256;
-	pll->pll_clock=125829120;
+	pll->pll_max = 31;
+	pll->pll_min = -31;
+	pll->pll_posmult = 512;
+	pll->pll_negmult = 256;
+	pll->pll_clock = 125829120;
+
 	return 0;
 }
 
 static int q40_set_rtc_pll(struct rtc_pll_info *pll)
 {
-	if (!pll->pll_ctrl){
+	if (!pll->pll_ctrl) {
 		/* the docs are a bit unclear so I am doublesetting */
 		/* RTC_WRITE here ... */
 		int tmp = (pll->pll_value & 31) | (pll->pll_value<0 ? 32 : 0) |
@@ -363,3 +329,15 @@ static int q40_set_rtc_pll(struct rtc_pll_info *pll)
 	} else
 		return -EINVAL;
 }
+
+static __init int q40_add_kbd_device(void)
+{
+	struct platform_device *pdev;
+
+	if (!MACH_IS_Q40)
+		return -ENODEV;
+
+	pdev = platform_device_register_simple("q40kbd", -1, NULL, 0);
+	return PTR_ERR_OR_ZERO(pdev);
+}
+arch_initcall(q40_add_kbd_device);
diff --git a/arch/m68k/q40/q40ints.c b/arch/m68k/q40/q40ints.c
index f8ecc2664fe..513f9bb17b9 100644
--- a/arch/m68k/q40/q40ints.c
+++ b/arch/m68k/q40/q40ints.c
@@ -14,16 +14,10 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/sched.h>
-#include <linux/seq_file.h>
 #include <linux/interrupt.h>
-#include <linux/hardirq.h>
+#include <linux/irq.h>
 
-#include <asm/rtc.h>
 #include <asm/ptrace.h>
-#include <asm/system.h>
-#include <asm/irq.h>
 #include <asm/traps.h>
 
 #include <asm/q40_master.h>
@@ -39,29 +33,38 @@
  *
 */
 
-extern int ints_inited;
+static void q40_irq_handler(unsigned int, struct pt_regs *fp);
+static void q40_irq_enable(struct irq_data *data);
+static void q40_irq_disable(struct irq_data *data);
 
+unsigned short q40_ablecount[35];
+unsigned short q40_state[35];
 
-irqreturn_t q40_irq2_handler (int, void *, struct pt_regs *fp);
-
-
-static irqreturn_t q40_defhand (int irq, void *dev_id, struct pt_regs *fp);
-static irqreturn_t default_handler(int lev, void *dev_id, struct pt_regs *regs);
-
+static unsigned int q40_irq_startup(struct irq_data *data)
+{
+	unsigned int irq = data->irq;
 
-#define DEVNAME_SIZE 24
+	/* test for ISA ints not implemented by HW */
+	switch (irq) {
+	case 1: case 2: case 8: case 9:
+	case 11: case 12: case 13:
+		printk("%s: ISA IRQ %d not implemented by HW\n", __func__, irq);
+		/* FIXME return -ENXIO; */
+	}
+	return 0;
+}
 
-static struct q40_irq_node {
-	irqreturn_t	(*handler)(int, void *, struct pt_regs *);
-	unsigned long	flags;
-	void		*dev_id;
-  /*        struct q40_irq_node *next;*/
-        char	        devname[DEVNAME_SIZE];
-	unsigned	count;
-        unsigned short  state;
-} irq_tab[Q40_IRQ_MAX+1];
+static void q40_irq_shutdown(struct irq_data *data)
+{
+}
 
-short unsigned q40_ablecount[Q40_IRQ_MAX+1];
+static struct irq_chip q40_irq_chip = {
+	.name		= "q40",
+	.irq_startup	= q40_irq_startup,
+	.irq_shutdown	= q40_irq_shutdown,
+	.irq_enable	= q40_irq_enable,
+	.irq_disable	= q40_irq_disable,
+};
 
 /*
  * void q40_init_IRQ (void)
@@ -74,139 +77,30 @@ short unsigned q40_ablecount[Q40_IRQ_MAX+1];
  * the q40 IRQ handling routines.
  */
 
-static int disabled=0;
+static int disabled;
 
-void q40_init_IRQ (void)
+void __init q40_init_IRQ(void)
 {
-	int i;
-
-	disabled=0;
-	for (i = 0; i <= Q40_IRQ_MAX; i++) {
-		irq_tab[i].handler = q40_defhand;
-		irq_tab[i].flags = 0;
-		irq_tab[i].dev_id = NULL;
-		/*		irq_tab[i].next = NULL;*/
-		irq_tab[i].devname[0] = 0;
-		irq_tab[i].count = 0;
-		irq_tab[i].state =0;
-		q40_ablecount[i]=0;   /* all enabled */
-	}
+	m68k_setup_irq_controller(&q40_irq_chip, handle_simple_irq, 1,
+				  Q40_IRQ_MAX);
 
 	/* setup handler for ISA ints */
-	cpu_request_irq(IRQ2, q40_irq2_handler, 0, "q40 ISA and master chip",
-			NULL);
+	m68k_setup_auto_interrupt(q40_irq_handler);
+
+	m68k_irq_startup_irq(IRQ_AUTO_2);
+	m68k_irq_startup_irq(IRQ_AUTO_4);
 
 	/* now enable some ints.. */
-	master_outb(1,EXT_ENABLE_REG);  /* ISA IRQ 5-15 */
+	master_outb(1, EXT_ENABLE_REG);  /* ISA IRQ 5-15 */
 
 	/* make sure keyboard IRQ is disabled */
-	master_outb(0,KEY_IRQ_ENABLE_REG);
-}
-
-int q40_request_irq(unsigned int irq,
-		irqreturn_t (*handler)(int, void *, struct pt_regs *),
-                unsigned long flags, const char *devname, void *dev_id)
-{
-  /*printk("q40_request_irq %d, %s\n",irq,devname);*/
-
-	if (irq > Q40_IRQ_MAX || (irq>15 && irq<32)) {
-		printk("%s: Incorrect IRQ %d from %s\n", __FUNCTION__, irq, devname);
-		return -ENXIO;
-	}
-
-	/* test for ISA ints not implemented by HW */
-	switch (irq)
-	  {
-	  case 1: case 2: case 8: case 9:
-	  case 12: case 13:
-	    printk("%s: ISA IRQ %d from %s not implemented by HW\n", __FUNCTION__, irq, devname);
-	    return -ENXIO;
-	  case 11:
-	    printk("warning IRQ 10 and 11 not distinguishable\n");
-	    irq=10;
-	  default:
-	    ;
-	  }
-
-	if (irq<Q40_IRQ_SAMPLE)
-	  {
-	    if (irq_tab[irq].dev_id != NULL)
-		  {
-		    printk("%s: IRQ %d from %s is not replaceable\n",
-			   __FUNCTION__, irq, irq_tab[irq].devname);
-		    return -EBUSY;
-		  }
-	    /*printk("IRQ %d set to handler %p\n",irq,handler);*/
-	    if (dev_id==NULL)
-		  {
-		printk("WARNING: dev_id == NULL in request_irq\n");
-		dev_id=(void*)1;
-	      }
-	    irq_tab[irq].handler = handler;
-	    irq_tab[irq].flags   = flags;
-	    irq_tab[irq].dev_id  = dev_id;
-	    strlcpy(irq_tab[irq].devname,devname,sizeof(irq_tab[irq].devname));
-	    irq_tab[irq].state = 0;
-	    return 0;
-	  }
-	else {
-	  /* Q40_IRQ_SAMPLE :somewhat special actions required here ..*/
-	  cpu_request_irq(4, handler, flags, devname, dev_id);
-	  cpu_request_irq(6, handler, flags, devname, dev_id);
-	  return 0;
-	}
+	master_outb(0, KEY_IRQ_ENABLE_REG);
 }
 
-void q40_free_irq(unsigned int irq, void *dev_id)
-{
-	if (irq > Q40_IRQ_MAX || (irq>15 && irq<32)) {
-		printk("%s: Incorrect IRQ %d, dev_id %x \n", __FUNCTION__, irq, (unsigned)dev_id);
-		return;
-	}
-
-	/* test for ISA ints not implemented by HW */
-	switch (irq)
-	  {
-	  case 1: case 2: case 8: case 9:
-	  case 12: case 13:
-	    printk("%s: ISA IRQ %d from %x invalid\n", __FUNCTION__, irq, (unsigned)dev_id);
-	    return;
-	  case 11: irq=10;
-	  default:
-	    ;
-	  }
-
-	if (irq<Q40_IRQ_SAMPLE)
-	  {
-	    if (irq_tab[irq].dev_id != dev_id)
-	      printk("%s: Removing probably wrong IRQ %d from %s\n",
-		     __FUNCTION__, irq, irq_tab[irq].devname);
-
-	    irq_tab[irq].handler = q40_defhand;
-	    irq_tab[irq].flags   = 0;
-	    irq_tab[irq].dev_id  = NULL;
-	    /* irq_tab[irq].devname = NULL; */
-	    /* do not reset state !! */
-	  }
-	else
-	  { /* == Q40_IRQ_SAMPLE */
-	    cpu_free_irq(4, dev_id);
-	    cpu_free_irq(6, dev_id);
-	  }
-}
-
-
-irqreturn_t q40_process_int (int level, struct pt_regs *fp)
-{
-  printk("unexpected interrupt vec=%x, pc=%lx, d0=%lx, d0_orig=%lx, d1=%lx, d2=%lx\n",
-          level, fp->pc, fp->d0, fp->orig_d0, fp->d1, fp->d2);
-  printk("\tIIRQ_REG = %x, EIRQ_REG = %x\n",master_inb(IIRQ_REG),master_inb(EIRQ_REG));
-  return IRQ_HANDLED;
-}
 
 /*
  * this stuff doesn't really belong here..
-*/
+ */
 
 int ql_ticks;              /* 200Hz ticks since last jiffie */
 static int sound_ticks;
@@ -215,54 +109,53 @@ static int sound_ticks;
 
 void q40_mksound(unsigned int hz, unsigned int ticks)
 {
-  /* for now ignore hz, except that hz==0 switches off sound */
-  /* simply alternate the ampl (128-SVOL)-(128+SVOL)-..-.. at 200Hz */
-  if (hz==0)
-    {
-      if (sound_ticks)
-	sound_ticks=1;
-
-      *DAC_LEFT=128;
-      *DAC_RIGHT=128;
-
-      return;
-    }
-  /* sound itself is done in q40_timer_int */
-  if (sound_ticks == 0) sound_ticks=1000; /* pretty long beep */
-  sound_ticks=ticks<<1;
+	/* for now ignore hz, except that hz==0 switches off sound */
+	/* simply alternate the ampl (128-SVOL)-(128+SVOL)-..-.. at 200Hz */
+	if (hz == 0) {
+		if (sound_ticks)
+			sound_ticks = 1;
+
+		*DAC_LEFT = 128;
+		*DAC_RIGHT = 128;
+
+		return;
+	}
+	/* sound itself is done in q40_timer_int */
+	if (sound_ticks == 0)
+		sound_ticks = 1000; /* pretty long beep */
+	sound_ticks = ticks << 1;
 }
 
-static irqreturn_t (*q40_timer_routine)(int, void *, struct pt_regs *);
+static irq_handler_t q40_timer_routine;
 
-static irqreturn_t q40_timer_int (int irq, void * dev, struct pt_regs * regs)
+static irqreturn_t q40_timer_int (int irq, void * dev)
 {
-    ql_ticks = ql_ticks ? 0 : 1;
-    if (sound_ticks)
-      {
-	unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL;
-	sound_ticks--;
-	*DAC_LEFT=sval;
-	*DAC_RIGHT=sval;
-      }
-
-    if (!ql_ticks)
-	q40_timer_routine(irq, dev, regs);
-    return IRQ_HANDLED;
+	ql_ticks = ql_ticks ? 0 : 1;
+	if (sound_ticks) {
+		unsigned char sval=(sound_ticks & 1) ? 128-SVOL : 128+SVOL;
+		sound_ticks--;
+		*DAC_LEFT=sval;
+		*DAC_RIGHT=sval;
+	}
+
+	if (!ql_ticks)
+		q40_timer_routine(irq, dev);
+	return IRQ_HANDLED;
 }
 
-void q40_sched_init (irqreturn_t (*timer_routine)(int, void *, struct pt_regs *))
+void q40_sched_init (irq_handler_t timer_routine)
 {
-    int timer_irq;
+	int timer_irq;
 
-    q40_timer_routine = timer_routine;
-    timer_irq=Q40_IRQ_FRAME;
+	q40_timer_routine = timer_routine;
+	timer_irq = Q40_IRQ_FRAME;
 
-    if (request_irq(timer_irq, q40_timer_int, 0,
+	if (request_irq(timer_irq, q40_timer_int, 0,
 				"timer", q40_timer_int))
-	panic ("Couldn't register timer int");
+		panic("Couldn't register timer int");
 
-    master_outb(-1,FRAME_CLEAR_REG);
-    master_outb( 1,FRAME_RATE_REG);
+	master_outb(-1, FRAME_CLEAR_REG);
+	master_outb( 1, FRAME_RATE_REG);
 }
 
 
@@ -292,7 +185,7 @@ static struct IRQ_TABLE eirqs[] = {
 };
 
 /* complain only this many times about spurious ints : */
-static int ccleirq=60;    /* ISA dev IRQ's*/
+static int ccleirq=60;    /* ISA dev IRQs*/
 /*static int cclirq=60;*/     /* internal */
 
 /* FIXME: add shared ints,mask,unmask,probing.... */
@@ -308,169 +201,126 @@ static int mext_disabled=0;  /* ext irq disabled by master chip? */
 static int aliased_irq=0;  /* how many times inside handler ?*/
 
 
-/* got level 2 interrupt, dispatch to ISA or keyboard/timer IRQs */
-irqreturn_t q40_irq2_handler (int vec, void *devname, struct pt_regs *fp)
+/* got interrupt, dispatch to ISA or keyboard/timer IRQs */
+static void q40_irq_handler(unsigned int irq, struct pt_regs *fp)
 {
-  unsigned mir, mer;
-  int irq,i;
+	unsigned mir, mer;
+	int i;
 
 //repeat:
-  mir=master_inb(IIRQ_REG);
-  if (mir&Q40_IRQ_FRAME_MASK) {
-	  irq_tab[Q40_IRQ_FRAME].count++;
-	  irq_tab[Q40_IRQ_FRAME].handler(Q40_IRQ_FRAME,irq_tab[Q40_IRQ_FRAME].dev_id,fp);
-	  master_outb(-1,FRAME_CLEAR_REG);
-  }
-  if ((mir&Q40_IRQ_SER_MASK) || (mir&Q40_IRQ_EXT_MASK)) {
-	  mer=master_inb(EIRQ_REG);
-	  for (i=0; eirqs[i].mask; i++) {
-		  if (mer&(eirqs[i].mask)) {
-			  irq=eirqs[i].irq;
+	mir = master_inb(IIRQ_REG);
+#ifdef CONFIG_BLK_DEV_FD
+	if ((mir & Q40_IRQ_EXT_MASK) &&
+	    (master_inb(EIRQ_REG) & Q40_IRQ6_MASK)) {
+		floppy_hardint();
+		return;
+	}
+#endif
+	switch (irq) {
+	case 4:
+	case 6:
+		do_IRQ(Q40_IRQ_SAMPLE, fp);
+		return;
+	}
+	if (mir & Q40_IRQ_FRAME_MASK) {
+		do_IRQ(Q40_IRQ_FRAME, fp);
+		master_outb(-1, FRAME_CLEAR_REG);
+	}
+	if ((mir & Q40_IRQ_SER_MASK) || (mir & Q40_IRQ_EXT_MASK)) {
+		mer = master_inb(EIRQ_REG);
+		for (i = 0; eirqs[i].mask; i++) {
+			if (mer & eirqs[i].mask) {
+				irq = eirqs[i].irq;
 /*
  * There is a little mess wrt which IRQ really caused this irq request. The
  * main problem is that IIRQ_REG and EIRQ_REG reflect the state when they
  * are read - which is long after the request came in. In theory IRQs should
- * not just go away but they occassionally do
+ * not just go away but they occasionally do
  */
-			  if (irq>4 && irq<=15 && mext_disabled) {
-				  /*aliased_irq++;*/
-				  goto iirq;
-			  }
-			  if (irq_tab[irq].handler == q40_defhand ) {
-				  printk("handler for IRQ %d not defined\n",irq);
-				  continue; /* ignore uninited INTs :-( */
-			  }
-			  if ( irq_tab[irq].state & IRQ_INPROGRESS ) {
-				  /* some handlers do local_irq_enable() for irq latency reasons, */
-				  /* however reentering an active irq handler is not permitted */
+				if (irq > 4 && irq <= 15 && mext_disabled) {
+					/*aliased_irq++;*/
+					goto iirq;
+				}
+				if (q40_state[irq] & IRQ_INPROGRESS) {
+					/* some handlers do local_irq_enable() for irq latency reasons, */
+					/* however reentering an active irq handler is not permitted */
 #ifdef IP_USE_DISABLE
-				  /* in theory this is the better way to do it because it still */
-				  /* lets through eg the serial irqs, unfortunately it crashes */
-				  disable_irq(irq);
-				  disabled=1;
+					/* in theory this is the better way to do it because it still */
+					/* lets through eg the serial irqs, unfortunately it crashes */
+					disable_irq(irq);
+					disabled = 1;
 #else
-				  /*printk("IRQ_INPROGRESS detected for irq %d, disabling - %s disabled\n",irq,disabled ? "already" : "not yet"); */
-				  fp->sr = (((fp->sr) & (~0x700))+0x200);
-				  disabled=1;
+					/*printk("IRQ_INPROGRESS detected for irq %d, disabling - %s disabled\n",
+						irq, disabled ? "already" : "not yet"); */
+					fp->sr = (((fp->sr) & (~0x700))+0x200);
+					disabled = 1;
 #endif
-				  goto iirq;
-			  }
-			  irq_tab[irq].count++;
-			  irq_tab[irq].state |= IRQ_INPROGRESS;
-			  irq_tab[irq].handler(irq,irq_tab[irq].dev_id,fp);
-			  irq_tab[irq].state &= ~IRQ_INPROGRESS;
-
-			  /* naively enable everything, if that fails than    */
-			  /* this function will be reentered immediately thus */
-			  /* getting another chance to disable the IRQ        */
-
-			  if ( disabled ) {
+					goto iirq;
+				}
+				q40_state[irq] |= IRQ_INPROGRESS;
+				do_IRQ(irq, fp);
+				q40_state[irq] &= ~IRQ_INPROGRESS;
+
+				/* naively enable everything, if that fails than    */
+				/* this function will be reentered immediately thus */
+				/* getting another chance to disable the IRQ        */
+
+				if (disabled) {
 #ifdef IP_USE_DISABLE
-				  if (irq>4){
-					  disabled=0;
-					  enable_irq(irq);}
+					if (irq > 4) {
+						disabled = 0;
+						enable_irq(irq);
+					}
 #else
-				  disabled=0;
-				  /*printk("reenabling irq %d\n",irq); */
+					disabled = 0;
+					/*printk("reenabling irq %d\n", irq); */
 #endif
-			  }
+				}
 // used to do 'goto repeat;' here, this delayed bh processing too long
-			  return IRQ_HANDLED;
-		  }
-	  }
-	  if (mer && ccleirq>0 && !aliased_irq)
-		  printk("ISA interrupt from unknown source? EIRQ_REG = %x\n",mer),ccleirq--;
-  }
- iirq:
-  mir=master_inb(IIRQ_REG);
-  /* should test whether keyboard irq is really enabled, doing it in defhand */
-  if (mir&Q40_IRQ_KEYB_MASK) {
-	  irq_tab[Q40_IRQ_KEYBOARD].count++;
-	  irq_tab[Q40_IRQ_KEYBOARD].handler(Q40_IRQ_KEYBOARD,irq_tab[Q40_IRQ_KEYBOARD].dev_id,fp);
-  }
-  return IRQ_HANDLED;
-}
-
-int show_q40_interrupts (struct seq_file *p, void *v)
-{
-	int i;
-
-	for (i = 0; i <= Q40_IRQ_MAX; i++) {
-		if (irq_tab[i].count)
-		      seq_printf(p, "%sIRQ %02d: %8d  %s%s\n",
-			      (i<=15) ? "ISA-" : "    " ,
-			    i, irq_tab[i].count,
-			    irq_tab[i].devname[0] ? irq_tab[i].devname : "?",
-			    irq_tab[i].handler == q40_defhand ?
-					" (now unassigned)" : "");
+				return;
+			}
+		}
+		if (mer && ccleirq > 0 && !aliased_irq) {
+			printk("ISA interrupt from unknown source? EIRQ_REG = %x\n",mer);
+			ccleirq--;
+		}
 	}
-	return 0;
-}
-
+ iirq:
+	mir = master_inb(IIRQ_REG);
+	/* should test whether keyboard irq is really enabled, doing it in defhand */
+	if (mir & Q40_IRQ_KEYB_MASK)
+		do_IRQ(Q40_IRQ_KEYBOARD, fp);
 
-static irqreturn_t q40_defhand (int irq, void *dev_id, struct pt_regs *fp)
-{
-        if (irq!=Q40_IRQ_KEYBOARD)
-	     printk ("Unknown q40 interrupt %d\n", irq);
-	else master_outb(-1,KEYBOARD_UNLOCK_REG);
-	return IRQ_NONE;
+	return;
 }
-static irqreturn_t default_handler(int lev, void *dev_id, struct pt_regs *regs)
-{
-	printk ("Uninitialised interrupt level %d\n", lev);
-	return IRQ_NONE;
-}
-
-irqreturn_t (*q40_default_handler[SYS_IRQS])(int, void *, struct pt_regs *) = {
-	 [0] = default_handler,
-	 [1] = default_handler,
-	 [2] = default_handler,
-	 [3] = default_handler,
-	 [4] = default_handler,
-	 [5] = default_handler,
-	 [6] = default_handler,
-	 [7] = default_handler
-};
-
 
-void q40_enable_irq (unsigned int irq)
+void q40_irq_enable(struct irq_data *data)
 {
-  if ( irq>=5 && irq<=15 )
-  {
-    mext_disabled--;
-    if (mext_disabled>0)
-	  printk("q40_enable_irq : nested disable/enable\n");
-    if (mext_disabled==0)
-    master_outb(1,EXT_ENABLE_REG);
-    }
+	unsigned int irq = data->irq;
+
+	if (irq >= 5 && irq <= 15) {
+		mext_disabled--;
+		if (mext_disabled > 0)
+			printk("q40_irq_enable : nested disable/enable\n");
+		if (mext_disabled == 0)
+			master_outb(1, EXT_ENABLE_REG);
+	}
 }
 
 
-void q40_disable_irq (unsigned int irq)
+void q40_irq_disable(struct irq_data *data)
 {
-  /* disable ISA iqs : only do something if the driver has been
-   * verified to be Q40 "compatible" - right now IDE, NE2K
-   * Any driver should not attempt to sleep across disable_irq !!
-   */
-
-  if ( irq>=5 && irq<=15 ) {
-    master_outb(0,EXT_ENABLE_REG);
-    mext_disabled++;
-    if (mext_disabled>1) printk("disable_irq nesting count %d\n",mext_disabled);
-  }
-}
-
-unsigned long q40_probe_irq_on (void)
-{
-  printk("irq probing not working - reconfigure the driver to avoid this\n");
-  return -1;
-}
-int q40_probe_irq_off (unsigned long irqs)
-{
-  return -1;
+	unsigned int irq = data->irq;
+
+	/* disable ISA iqs : only do something if the driver has been
+	 * verified to be Q40 "compatible" - right now IDE, NE2K
+	 * Any driver should not attempt to sleep across disable_irq !!
+	 */
+
+	if (irq >= 5 && irq <= 15) {
+		master_outb(0, EXT_ENABLE_REG);
+		mext_disabled++;
+		if (mext_disabled > 1)
+			printk("disable_irq nesting count %d\n",mext_disabled);
+	}
 }
-/*
- * Local variables:
- * compile-command: "m68k-linux-gcc -D__KERNEL__ -I/home/rz/lx/linux-2.2.6/include -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -pipe -fno-strength-reduce -ffixed-a2 -m68040   -c -o q40ints.o q40ints.c"
- * End:
- */