CRIS v32: Remove drivers/gpio.c, now exists as machine specific file.

arch/cris/arch-v32/drivers/gpio.c

@@ -1,765 +0,0 @@
-/* $Id: gpio.c,v 1.16 2005/06/19 17:06:49 starvik Exp $
- *
- * ETRAX CRISv32 general port I/O device
- *
- * Copyright (c) 1999, 2000, 2001, 2002, 2003 Axis Communications AB
- *
- * Authors:    Bjorn Wesen      (initial version)
- *             Ola Knutsson     (LED handling)
- *             Johan Adolfsson  (read/set directions, write, port G,
- *                               port to ETRAX FS.
- *
- * $Log: gpio.c,v $
- * Revision 1.16  2005/06/19 17:06:49  starvik
- * Merge of Linux 2.6.12.
- *
- * Revision 1.15  2005/05/25 08:22:20  starvik
- * Changed GPIO port order to fit packages/devices/axis-2.4.
- *
- * Revision 1.14  2005/04/24 18:35:08  starvik
- * Updated with final register headers.
- *
- * Revision 1.13  2005/03/15 15:43:00  starvik
- * dev_id needs to be supplied for shared IRQs.
- *
- * Revision 1.12  2005/03/10 17:12:00  starvik
- * Protect alarm list with spinlock.
- *
- * Revision 1.11  2005/01/05 06:08:59  starvik
- * No need to do local_irq_disable after local_irq_save.
- *
- * Revision 1.10  2004/11/19 08:38:31  starvik
- * Removed old crap.
- *
- * Revision 1.9  2004/05/14 07:58:02  starvik
- * Merge of changes from 2.4
- *
- * Revision 1.8  2003/09/11 07:29:50  starvik
- * Merge of Linux 2.6.0-test5
- *
- * Revision 1.7  2003/07/10 13:25:46  starvik
- * Compiles for 2.5.74
- * Lindented ethernet.c
- *
- * Revision 1.6  2003/07/04 08:27:46  starvik
- * Merge of Linux 2.5.74
- *
- * Revision 1.5  2003/06/10 08:26:37  johana
- * Etrax -> ETRAX CRISv32
- *
- * Revision 1.4  2003/06/05 14:22:48  johana
- * Initialise some_alarms.
- *
- * Revision 1.3  2003/06/05 10:15:46  johana
- * New INTR_VECT macros.
- * Enable interrupts in global config.
- *
- * Revision 1.2  2003/06/03 15:52:50  johana
- * Initial CRIS v32 version.
- *
- * Revision 1.1  2003/06/03 08:53:15  johana
- * Copy of os/lx25/arch/cris/arch-v10/drivers/gpio.c version 1.7.
- *
- */
-
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-
-#include <asm/etraxgpio.h>
-#include <asm/arch/hwregs/reg_map.h>
-#include <asm/arch/hwregs/reg_rdwr.h>
-#include <asm/arch/hwregs/gio_defs.h>
-#include <asm/arch/hwregs/intr_vect_defs.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-
-/* The following gio ports on ETRAX FS is available:
- * pa  8 bits, supports interrupts off, hi, low, set, posedge, negedge anyedge
- * pb 18 bits
- * pc 18 bits
- * pd 18 bits
- * pe 18 bits
- * each port has a rw_px_dout, r_px_din and rw_px_oe register.
- */
-
-#define GPIO_MAJOR 120  /* experimental MAJOR number */
-
-#define D(x)
-
-#if 0
-static int dp_cnt;
-#define DP(x) do { dp_cnt++; if (dp_cnt % 1000 == 0) x; }while(0)
-#else
-#define DP(x)
-#endif
-
-static char gpio_name[] = "etrax gpio";
-
-#if 0
-static wait_queue_head_t *gpio_wq;
-#endif
-
-static int gpio_ioctl(struct inode *inode, struct file *file,
-		      unsigned int cmd, unsigned long arg);
-static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
-                          loff_t *off);
-static int gpio_open(struct inode *inode, struct file *filp);
-static int gpio_release(struct inode *inode, struct file *filp);
-static unsigned int gpio_poll(struct file *filp, struct poll_table_struct *wait);
-
-/* private data per open() of this driver */
-
-struct gpio_private {
-	struct gpio_private *next;
-	/* The IO_CFG_WRITE_MODE_VALUE only support 8 bits: */
-	unsigned char clk_mask;
-	unsigned char data_mask;
-	unsigned char write_msb;
-	unsigned char pad1;
-	/* These fields are generic */
-	unsigned long highalarm, lowalarm;
-	wait_queue_head_t alarm_wq;
-	int minor;
-};
-
-/* linked list of alarms to check for */
-
-static struct gpio_private *alarmlist = 0;
-
-static int gpio_some_alarms = 0; /* Set if someone uses alarm */
-static unsigned long gpio_pa_high_alarms = 0;
-static unsigned long gpio_pa_low_alarms = 0;
-
-static DEFINE_SPINLOCK(alarm_lock);
-
-#define NUM_PORTS (GPIO_MINOR_LAST+1)
-#define GIO_REG_RD_ADDR(reg) (volatile unsigned long*) (regi_gio + REG_RD_ADDR_gio_##reg )
-#define GIO_REG_WR_ADDR(reg) (volatile unsigned long*) (regi_gio + REG_RD_ADDR_gio_##reg )
-unsigned long led_dummy;
-
-static volatile unsigned long *data_out[NUM_PORTS] = {
-	GIO_REG_WR_ADDR(rw_pa_dout),
-	GIO_REG_WR_ADDR(rw_pb_dout),
-	&led_dummy,
-	GIO_REG_WR_ADDR(rw_pc_dout),
-	GIO_REG_WR_ADDR(rw_pd_dout),
-	GIO_REG_WR_ADDR(rw_pe_dout),
-};
-
-static volatile unsigned long *data_in[NUM_PORTS] = {
-	GIO_REG_RD_ADDR(r_pa_din),
-	GIO_REG_RD_ADDR(r_pb_din),
-	&led_dummy,
-	GIO_REG_RD_ADDR(r_pc_din),
-	GIO_REG_RD_ADDR(r_pd_din),
-	GIO_REG_RD_ADDR(r_pe_din),
-};
-
-static unsigned long changeable_dir[NUM_PORTS] = {
-	CONFIG_ETRAX_PA_CHANGEABLE_DIR,
-	CONFIG_ETRAX_PB_CHANGEABLE_DIR,
-	0,
-	CONFIG_ETRAX_PC_CHANGEABLE_DIR,
-	CONFIG_ETRAX_PD_CHANGEABLE_DIR,
-	CONFIG_ETRAX_PE_CHANGEABLE_DIR,
-};
-
-static unsigned long changeable_bits[NUM_PORTS] = {
-	CONFIG_ETRAX_PA_CHANGEABLE_BITS,
-	CONFIG_ETRAX_PB_CHANGEABLE_BITS,
-	0,
-	CONFIG_ETRAX_PC_CHANGEABLE_BITS,
-	CONFIG_ETRAX_PD_CHANGEABLE_BITS,
-	CONFIG_ETRAX_PE_CHANGEABLE_BITS,
-};
-
-static volatile unsigned long *dir_oe[NUM_PORTS] = {
-	GIO_REG_WR_ADDR(rw_pa_oe),
-	GIO_REG_WR_ADDR(rw_pb_oe),
-	&led_dummy,
-	GIO_REG_WR_ADDR(rw_pc_oe),
-	GIO_REG_WR_ADDR(rw_pd_oe),
-	GIO_REG_WR_ADDR(rw_pe_oe),
-};
-
-
-
-static unsigned int
-gpio_poll(struct file *file,
-	  poll_table *wait)
-{
-	unsigned int mask = 0;
-	struct gpio_private *priv = (struct gpio_private *)file->private_data;
-	unsigned long data;
-	poll_wait(file, &priv->alarm_wq, wait);
-	if (priv->minor == GPIO_MINOR_A) {
-		reg_gio_rw_intr_cfg intr_cfg;
-		unsigned long tmp;
-		unsigned long flags;
-
-		local_irq_save(flags);
-		data = REG_TYPE_CONV(unsigned long, reg_gio_r_pa_din, REG_RD(gio, regi_gio, r_pa_din));
-		/* PA has support for interrupt
-		 * lets activate high for those low and with highalarm set
-		 */
-		intr_cfg = REG_RD(gio, regi_gio, rw_intr_cfg);
-
-		tmp = ~data & priv->highalarm & 0xFF;
-                if (tmp & (1 << 0)) {
-			intr_cfg.pa0 = regk_gio_hi;
-		}
-                if (tmp & (1 << 1)) {
-			intr_cfg.pa1 = regk_gio_hi;
-		}
-                if (tmp & (1 << 2)) {
-			intr_cfg.pa2 = regk_gio_hi;
-		}
-                if (tmp & (1 << 3)) {
-			intr_cfg.pa3 = regk_gio_hi;
-		}
-                if (tmp & (1 << 4)) {
-			intr_cfg.pa4 = regk_gio_hi;
-		}
-                if (tmp & (1 << 5)) {
-			intr_cfg.pa5 = regk_gio_hi;
-		}
-                if (tmp & (1 << 6)) {
-			intr_cfg.pa6 = regk_gio_hi;
-		}
-                if (tmp & (1 << 7)) {
-			intr_cfg.pa7 = regk_gio_hi;
-		}
-		/*
-		 * lets activate low for those high and with lowalarm set
-		 */
-		tmp = data & priv->lowalarm & 0xFF;
-                if (tmp & (1 << 0)) {
-			intr_cfg.pa0 = regk_gio_lo;
-		}
-                if (tmp & (1 << 1)) {
-			intr_cfg.pa1 = regk_gio_lo;
-		}
-                if (tmp & (1 << 2)) {
-			intr_cfg.pa2 = regk_gio_lo;
-		}
-                if (tmp & (1 << 3)) {
-			intr_cfg.pa3 = regk_gio_lo;
-		}
-                if (tmp & (1 << 4)) {
-			intr_cfg.pa4 = regk_gio_lo;
-		}
-                if (tmp & (1 << 5)) {
-			intr_cfg.pa5 = regk_gio_lo;
-		}
-                if (tmp & (1 << 6)) {
-			intr_cfg.pa6 = regk_gio_lo;
-		}
-                if (tmp & (1 << 7)) {
-			intr_cfg.pa7 = regk_gio_lo;
-		}
-
-		REG_WR(gio, regi_gio, rw_intr_cfg, intr_cfg);
-		local_irq_restore(flags);
-	} else if (priv->minor <= GPIO_MINOR_E)
-		data = *data_in[priv->minor];
-	else
-		return 0;
-
-	if ((data & priv->highalarm) ||
-	    (~data & priv->lowalarm)) {
-		mask = POLLIN|POLLRDNORM;
-	}
-
-	DP(printk("gpio_poll ready: mask 0x%08X\n", mask));
-	return mask;
-}
-
-int etrax_gpio_wake_up_check(void)
-{
-	struct gpio_private *priv = alarmlist;
-	unsigned long data = 0;
-        int ret = 0;
-	while (priv) {
-		data = *data_in[priv->minor];
-		if ((data & priv->highalarm) ||
-		    (~data & priv->lowalarm)) {
-			DP(printk("etrax_gpio_wake_up_check %i\n",priv->minor));
-			wake_up_interruptible(&priv->alarm_wq);
-                        ret = 1;
-		}
-		priv = priv->next;
-	}
-        return ret;
-}
-
-static irqreturn_t
-gpio_poll_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	if (gpio_some_alarms) {
-		return IRQ_RETVAL(etrax_gpio_wake_up_check());
-	}
-        return IRQ_NONE;
-}
-
-static irqreturn_t
-gpio_pa_interrupt(int irq, void *dev_id, struct pt_regs *regs)
-{
-	reg_gio_rw_intr_mask intr_mask;
-	reg_gio_r_masked_intr masked_intr;
-	reg_gio_rw_ack_intr ack_intr;
-	unsigned long tmp;
-	unsigned long tmp2;
-
-	/* Find what PA interrupts are active */
-	masked_intr = REG_RD(gio, regi_gio, r_masked_intr);
-	tmp = REG_TYPE_CONV(unsigned long, reg_gio_r_masked_intr, masked_intr);
-
-	/* Find those that we have enabled */
-	spin_lock(&alarm_lock);
-	tmp &= (gpio_pa_high_alarms | gpio_pa_low_alarms);
-	spin_unlock(&alarm_lock);
-
-	/* Ack them */
-	ack_intr = REG_TYPE_CONV(reg_gio_rw_ack_intr, unsigned long, tmp);
-	REG_WR(gio, regi_gio, rw_ack_intr, ack_intr);
-
-	/* Disable those interrupts.. */
-	intr_mask = REG_RD(gio, regi_gio, rw_intr_mask);
-	tmp2 = REG_TYPE_CONV(unsigned long, reg_gio_rw_intr_mask, intr_mask);
-	tmp2 &= ~tmp;
-	intr_mask = REG_TYPE_CONV(reg_gio_rw_intr_mask, unsigned long, tmp2);
-	REG_WR(gio, regi_gio, rw_intr_mask, intr_mask);
-
-	if (gpio_some_alarms) {
-		return IRQ_RETVAL(etrax_gpio_wake_up_check());
-	}
-        return IRQ_NONE;
-}
-
-
-static ssize_t gpio_write(struct file * file, const char * buf, size_t count,
-                          loff_t *off)
-{
-	struct gpio_private *priv = (struct gpio_private *)file->private_data;
-	unsigned char data, clk_mask, data_mask, write_msb;
-	unsigned long flags;
-	unsigned long shadow;
-	volatile unsigned long *port;
-	ssize_t retval = count;
-	/* Only bits 0-7 may be used for write operations but allow all
-	   devices except leds... */
-	if (priv->minor == GPIO_MINOR_LEDS) {
-		return -EFAULT;
-	}
-
-	if (!access_ok(VERIFY_READ, buf, count)) {
-		return -EFAULT;
-	}
-	clk_mask = priv->clk_mask;
-	data_mask = priv->data_mask;
-	/* It must have been configured using the IO_CFG_WRITE_MODE */
-	/* Perhaps a better error code? */
-	if (clk_mask == 0 || data_mask == 0) {
-		return -EPERM;
-	}
-	write_msb = priv->write_msb;
-	D(printk("gpio_write: %lu to data 0x%02X clk 0x%02X msb: %i\n",count, data_mask, clk_mask, write_msb));
-	port = data_out[priv->minor];
-
-	while (count--) {
-		int i;
-		data = *buf++;
-		if (priv->write_msb) {
-			for (i = 7; i >= 0;i--) {
-				local_irq_save(flags);
-				shadow = *port;
-				*port = shadow &= ~clk_mask;
-				if (data & 1<<i)
-					*port = shadow |= data_mask;
-				else
-					*port = shadow &= ~data_mask;
-			/* For FPGA: min 5.0ns (DCC) before CCLK high */
-				*port = shadow |= clk_mask;
-				local_irq_restore(flags);
-			}
-		} else {
-			for (i = 0; i <= 7;i++) {
-				local_irq_save(flags);
-				shadow = *port;
-				*port = shadow &= ~clk_mask;
-				if (data & 1<<i)
-					*port = shadow |= data_mask;
-				else
-					*port = shadow &= ~data_mask;
-			/* For FPGA: min 5.0ns (DCC) before CCLK high */
-				*port = shadow |= clk_mask;
-				local_irq_restore(flags);
-			}
-		}
-	}
-	return retval;
-}
-
-
-
-static int
-gpio_open(struct inode *inode, struct file *filp)
-{
-	struct gpio_private *priv;
-	int p = iminor(inode);
-
-	if (p > GPIO_MINOR_LAST)
-		return -EINVAL;
-
-	priv = kmalloc(sizeof(struct gpio_private),
-					      GFP_KERNEL);
-
-	if (!priv)
-		return -ENOMEM;
-
-	priv->minor = p;
-
-	/* initialize the io/alarm struct and link it into our alarmlist */
-
-	priv->next = alarmlist;
-	alarmlist = priv;
-	priv->clk_mask = 0;
-	priv->data_mask = 0;
-	priv->highalarm = 0;
-	priv->lowalarm = 0;
-	init_waitqueue_head(&priv->alarm_wq);
-
-	filp->private_data = (void *)priv;
-
-	return 0;
-}
-
-static int
-gpio_release(struct inode *inode, struct file *filp)
-{
-	struct gpio_private *p = alarmlist;
-	struct gpio_private *todel = (struct gpio_private *)filp->private_data;
-	/* local copies while updating them: */
-	unsigned long a_high, a_low;
-	unsigned long some_alarms;
-
-	/* unlink from alarmlist and free the private structure */
-
-	if (p == todel) {
-		alarmlist = todel->next;
-	} else {
-		while (p->next != todel)
-			p = p->next;
-		p->next = todel->next;
-	}
-
-	kfree(todel);
-	/* Check if there are still any alarms set */
-	p = alarmlist;
-        some_alarms = 0;
-	a_high = 0;
-	a_low = 0;
-	while (p) {
-		if (p->minor == GPIO_MINOR_A) {
-			a_high |= p->highalarm;
-			a_low |= p->lowalarm;
-		}
-
-		if (p->highalarm | p->lowalarm) {
-			some_alarms = 1;
-		}
-		p = p->next;
-	}
-
-	spin_lock(&alarm_lock);
-	gpio_some_alarms = some_alarms;
-	gpio_pa_high_alarms = a_high;
-	gpio_pa_low_alarms = a_low;
-	spin_unlock(&alarm_lock);
-
-	return 0;
-}
-
-/* Main device API. ioctl's to read/set/clear bits, as well as to
- * set alarms to wait for using a subsequent select().
- */
-
-unsigned long inline setget_input(struct gpio_private *priv, unsigned long arg)
-{
-	/* Set direction 0=unchanged 1=input,
-	 * return mask with 1=input
-	 */
-	unsigned long flags;
-	unsigned long dir_shadow;
-
-	local_irq_save(flags);
-	dir_shadow = *dir_oe[priv->minor];
-	dir_shadow &= ~(arg & changeable_dir[priv->minor]);
-	*dir_oe[priv->minor] = dir_shadow;
-	local_irq_restore(flags);
-
-	if (priv->minor == GPIO_MINOR_A)
-		dir_shadow ^= 0xFF;    /* Only 8 bits */
-	else
-		dir_shadow ^= 0x3FFFF; /* Only 18 bits */
-	return dir_shadow;
-
-} /* setget_input */
-
-unsigned long inline setget_output(struct gpio_private *priv, unsigned long arg)
-{
-	unsigned long flags;
-	unsigned long dir_shadow;
-
-	local_irq_save(flags);
-	dir_shadow = *dir_oe[priv->minor];
-	dir_shadow |=  (arg & changeable_dir[priv->minor]);
-	*dir_oe[priv->minor] = dir_shadow;
-	local_irq_restore(flags);
-	return dir_shadow;
-} /* setget_output */
-
-static int
-gpio_leds_ioctl(unsigned int cmd, unsigned long arg);
-
-static int
-gpio_ioctl(struct inode *inode, struct file *file,
-	   unsigned int cmd, unsigned long arg)
-{
-	unsigned long flags;
-	unsigned long val;
-	unsigned long shadow;
-	struct gpio_private *priv = (struct gpio_private *)file->private_data;
-	if (_IOC_TYPE(cmd) != ETRAXGPIO_IOCTYPE) {
-		return -EINVAL;
-	}
-
-	switch (_IOC_NR(cmd)) {
-	case IO_READBITS: /* Use IO_READ_INBITS and IO_READ_OUTBITS instead */
-		// read the port
-		return *data_in[priv->minor];
-		break;
-	case IO_SETBITS:
-		local_irq_save(flags);
-                if (arg & 0x04)
-                  printk("GPIO SET 2\n");
-		// set changeable bits with a 1 in arg
-		shadow = *data_out[priv->minor];
-		shadow |=  (arg & changeable_bits[priv->minor]);
-		*data_out[priv->minor] = shadow;
-		local_irq_restore(flags);
-		break;
-	case IO_CLRBITS:
-		local_irq_save(flags);
-                if (arg & 0x04)
-                  printk("GPIO CLR 2\n");
-		// clear changeable bits with a 1 in arg
-		shadow = *data_out[priv->minor];
-		shadow &=  ~(arg & changeable_bits[priv->minor]);
-		*data_out[priv->minor] = shadow;
-		local_irq_restore(flags);
-		break;
-	case IO_HIGHALARM:
-		// set alarm when bits with 1 in arg go high
-		priv->highalarm |= arg;
-		spin_lock(&alarm_lock);
-		gpio_some_alarms = 1;
-		if (priv->minor == GPIO_MINOR_A) {
-			gpio_pa_high_alarms |= arg;
-		}
-		spin_unlock(&alarm_lock);
-		break;
-	case IO_LOWALARM:
-		// set alarm when bits with 1 in arg go low
-		priv->lowalarm |= arg;
-		spin_lock(&alarm_lock);
-		gpio_some_alarms = 1;
-		if (priv->minor == GPIO_MINOR_A) {
-			gpio_pa_low_alarms |= arg;
-		}
-		spin_unlock(&alarm_lock);
-		break;
-	case IO_CLRALARM:
-		// clear alarm for bits with 1 in arg
-		priv->highalarm &= ~arg;
-		priv->lowalarm  &= ~arg;
-		spin_lock(&alarm_lock);
-		if (priv->minor == GPIO_MINOR_A) {
-			if (gpio_pa_high_alarms & arg ||
-			    gpio_pa_low_alarms & arg) {
-				/* Must update the gpio_pa_*alarms masks */
-			}
-		}
-		spin_unlock(&alarm_lock);
-		break;
-	case IO_READDIR: /* Use IO_SETGET_INPUT/OUTPUT instead! */
-		/* Read direction 0=input 1=output */
-		return *dir_oe[priv->minor];
-	case IO_SETINPUT: /* Use IO_SETGET_INPUT instead! */
-		/* Set direction 0=unchanged 1=input,
-		 * return mask with 1=input
-		 */
-		return setget_input(priv, arg);
-		break;
-	case IO_SETOUTPUT: /* Use IO_SETGET_OUTPUT instead! */
-		/* Set direction 0=unchanged 1=output,
-		 * return mask with 1=output
-		 */
-		return setget_output(priv, arg);
-
-	case IO_CFG_WRITE_MODE:
-	{
-		unsigned long dir_shadow;
-		dir_shadow = *dir_oe[priv->minor];
-
-		priv->clk_mask = arg & 0xFF;
-		priv->data_mask = (arg >> 8) & 0xFF;
-		priv->write_msb = (arg >> 16) & 0x01;
-		/* Check if we're allowed to change the bits and
-		 * the direction is correct
-		 */
-		if (!((priv->clk_mask & changeable_bits[priv->minor]) &&
-		      (priv->data_mask & changeable_bits[priv->minor]) &&
-		      (priv->clk_mask & dir_shadow) &&
-		      (priv->data_mask & dir_shadow)))
-		{
-			priv->clk_mask = 0;
-			priv->data_mask = 0;
-			return -EPERM;
-		}
-		break;
-	}
-	case IO_READ_INBITS:
-		/* *arg is result of reading the input pins */
-		val = *data_in[priv->minor];
-		if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
-			return -EFAULT;
-		return 0;
-		break;
-	case IO_READ_OUTBITS:
-		 /* *arg is result of reading the output shadow */
-		val = *data_out[priv->minor];
-		if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
-			return -EFAULT;
-		break;
-	case IO_SETGET_INPUT:
-		/* bits set in *arg is set to input,
-		 * *arg updated with current input pins.
-		 */
-		if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
-			return -EFAULT;
-		val = setget_input(priv, val);
-		if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
-			return -EFAULT;
-		break;
-	case IO_SETGET_OUTPUT:
-		/* bits set in *arg is set to output,
-		 * *arg updated with current output pins.
-		 */
-		if (copy_from_user(&val, (unsigned long*)arg, sizeof(val)))
-			return -EFAULT;
-		val = setget_output(priv, val);
-		if (copy_to_user((unsigned long*)arg, &val, sizeof(val)))
-			return -EFAULT;
-		break;
-	default:
-		if (priv->minor == GPIO_MINOR_LEDS)
-			return gpio_leds_ioctl(cmd, arg);
-		else
-			return -EINVAL;
-	} /* switch */
-
-	return 0;
-}
-
-static int
-gpio_leds_ioctl(unsigned int cmd, unsigned long arg)
-{
-	unsigned char green;
-	unsigned char red;
-
-	switch (_IOC_NR(cmd)) {
-	case IO_LEDACTIVE_SET:
-		green = ((unsigned char) arg) & 1;
-		red   = (((unsigned char) arg) >> 1) & 1;
-		LED_ACTIVE_SET_G(green);
-		LED_ACTIVE_SET_R(red);
-		break;
-
-	default:
-		return -EINVAL;
-	} /* switch */
-
-	return 0;
-}
-
-const struct file_operations gpio_fops = {
-	.owner       = THIS_MODULE,
-	.poll        = gpio_poll,
-	.ioctl       = gpio_ioctl,
-	.write       = gpio_write,
-	.open        = gpio_open,
-	.release     = gpio_release,
-};
-
-
-/* main driver initialization routine, called from mem.c */
-
-static __init int
-gpio_init(void)
-{
-	int res;
-	reg_intr_vect_rw_mask intr_mask;
-
-	/* do the formalities */
-
-	res = register_chrdev(GPIO_MAJOR, gpio_name, &gpio_fops);
-	if (res < 0) {
-		printk(KERN_ERR "gpio: couldn't get a major number.\n");
-		return res;
-	}
-
-	/* Clear all leds */
-	LED_NETWORK_SET(0);
-	LED_ACTIVE_SET(0);
-	LED_DISK_READ(0);
-	LED_DISK_WRITE(0);
-
-	printk("ETRAX FS GPIO driver v2.5, (c) 2003-2005 Axis Communications AB\n");
-	/* We call etrax_gpio_wake_up_check() from timer interrupt and
-	 * from cpu_idle() in kernel/process.c
-	 * The check in cpu_idle() reduces latency from ~15 ms to ~6 ms
-	 * in some tests.
-	 */
-	if (request_irq(TIMER_INTR_VECT, gpio_poll_timer_interrupt,
-			IRQF_SHARED | IRQF_DISABLED,"gpio poll", &alarmlist)) {
-		printk("err: timer0 irq for gpio\n");
-	}
-	if (request_irq(GEN_IO_INTR_VECT, gpio_pa_interrupt,
-			IRQF_SHARED | IRQF_DISABLED,"gpio PA", &alarmlist)) {
-		printk("err: PA irq for gpio\n");
-	}
-	/* enable the gio and timer irq in global config */
-	intr_mask = REG_RD(intr_vect, regi_irq, rw_mask);
-	intr_mask.timer = 1;
-	intr_mask.gen_io = 1;
-	REG_WR(intr_vect, regi_irq, rw_mask, intr_mask);
-
-	return res;
-}
-
-/* this makes sure that gpio_init is called during kernel boot */
-
-module_init(gpio_init);