1 files changed, 0 insertions, 507 deletions

diff --git a/drivers/staging/meilhaus/me1400_ext_irq.c b/drivers/staging/meilhaus/me1400_ext_irq.c
deleted file mode 100644
index 6841f41860a2..000000000000
--- a/drivers/staging/meilhaus/me1400_ext_irq.c
+++ /dev/null
@@ -1,507 +0,0 @@
-/**
- * @file me1400_ext_irq.c
- *
- * @brief ME-1400 external interrupt subdevice instance.
- * @note Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
- * @author Guenter Gebhardt
- * @author Krzysztof Gantzke	(k.gantzke@meilhaus.de)
- */
-
-/*
- * Copyright (C) 2007 Meilhaus Electronic GmbH (support@meilhaus.de)
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#ifndef __KERNEL__
-#  define __KERNEL__
-#endif
-
-/*
- * Includes
- */
-#include <linux/module.h>
-
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-
-#include "medefines.h"
-#include "meinternal.h"
-#include "meerror.h"
-#include "medebug.h"
-#include "meids.h"
-
-#include "me1400_ext_irq.h"
-#include "me1400_ext_irq_reg.h"
-
-/*
- * Defines
- */
-#define ME1400_EXT_IRQ_MAGIC_NUMBER	0x1401	/**< The magic number of the class structure. */
-#define ME1400_EXT_IRQ_NUMBER_CHANNELS 1	/**< One channel per counter. */
-
-/*
- * Functions
- */
-
-static int me1400_ext_irq_io_irq_start(struct me_subdevice *subdevice,
-				       struct file *filep,
-				       int channel,
-				       int irq_source,
-				       int irq_edge, int irq_arg, int flags)
-{
-	me1400_ext_irq_subdevice_t *instance;
-	unsigned long cpu_flags;
-	uint8_t tmp;
-
-	PDEBUG("executed.\n");
-
-	instance = (me1400_ext_irq_subdevice_t *) subdevice;
-
-	if (flags & ~ME_IO_IRQ_START_DIO_BIT) {
-		PERROR("Invalid flag specified.\n");
-		return ME_ERRNO_INVALID_FLAGS;
-	}
-
-	if (channel) {
-		PERROR("Invalid channel.\n");
-		return ME_ERRNO_INVALID_CHANNEL;
-	}
-
-	if (irq_source != ME_IRQ_SOURCE_DIO_LINE) {
-		PERROR("Invalid irq source.\n");
-		return ME_ERRNO_INVALID_IRQ_SOURCE;
-	}
-
-	if (irq_edge != ME_IRQ_EDGE_RISING) {
-		PERROR("Invalid irq edge.\n");
-		return ME_ERRNO_INVALID_IRQ_EDGE;
-	}
-
-	ME_SUBDEVICE_ENTER;
-
-	spin_lock_irqsave(&instance->subdevice_lock, cpu_flags);
-
-	spin_lock(instance->clk_src_reg_lock);
-//                      // Enable IRQ on PLX
-//                      tmp = inb(instance->plx_intcs_reg) | (PLX_LOCAL_INT1_EN | PLX_LOCAL_INT1_POL | PLX_PCI_INT_EN);
-//                      outb(tmp, instance->plx_intcs_reg);
-//                      PDEBUG_REG("ctrl_reg outb(PLX:0x%lX)=0x%x\n", instance->plx_intcs_reg, tmp);
-
-	// Enable IRQ
-	switch (instance->device_id) {
-	case PCI_DEVICE_ID_MEILHAUS_ME140C:
-	case PCI_DEVICE_ID_MEILHAUS_ME140D:
-		tmp = inb(instance->ctrl_reg);
-		tmp |= ME1400CD_EXT_IRQ_CLK_EN;
-		outb(tmp, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, tmp);
-		break;
-
-	default:
-		outb(ME1400AB_EXT_IRQ_IRQ_EN, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base,
-			   ME1400AB_EXT_IRQ_IRQ_EN);
-		break;
-	}
-	spin_unlock(instance->clk_src_reg_lock);
-	instance->rised = 0;
-	spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags);
-
-	ME_SUBDEVICE_EXIT;
-
-	return ME_ERRNO_SUCCESS;
-}
-
-static int me1400_ext_irq_io_irq_wait(struct me_subdevice *subdevice,
-				      struct file *filep,
-				      int channel,
-				      int *irq_count,
-				      int *value, int time_out, int flags)
-{
-	me1400_ext_irq_subdevice_t *instance;
-	unsigned long cpu_flags;
-	long t = 0;
-	int err = ME_ERRNO_SUCCESS;
-
-	PDEBUG("executed.\n");
-
-	instance = (me1400_ext_irq_subdevice_t *) subdevice;
-
-	if (flags) {
-		PERROR("Invalid flag specified.\n");
-		return ME_ERRNO_INVALID_FLAGS;
-	}
-
-	if (channel) {
-		PERROR("Invalid channel.\n");
-		return ME_ERRNO_INVALID_CHANNEL;
-	}
-
-	if (time_out < 0) {
-		PERROR("Invalid time out.\n");
-		return ME_ERRNO_INVALID_TIMEOUT;
-	}
-
-	if (time_out) {
-		/* Convert to ticks */
-		t = (time_out * HZ) / 1000;
-
-		if (t == 0)
-			t = 1;
-	}
-
-	ME_SUBDEVICE_ENTER;
-
-	if (instance->rised <= 0) {
-		instance->rised = 0;
-		if (time_out) {
-			t = wait_event_interruptible_timeout(instance->
-							     wait_queue,
-							     (instance->rised !=
-							      0), t);
-
-			if (t == 0) {
-				PERROR("Wait on interrupt timed out.\n");
-				err = ME_ERRNO_TIMEOUT;
-			}
-		} else {
-			wait_event_interruptible(instance->wait_queue,
-						 (instance->rised != 0));
-		}
-
-		if (instance->rised < 0) {
-			PERROR("Wait on interrupt aborted by user.\n");
-			err = ME_ERRNO_CANCELLED;
-		}
-	}
-
-	if (signal_pending(current)) {
-		PERROR("Wait on interrupt aborted by signal.\n");
-		err = ME_ERRNO_SIGNAL;
-	}
-
-	spin_lock_irqsave(&instance->subdevice_lock, cpu_flags);
-	instance->rised = 0;
-	*irq_count = instance->n;
-	*value = 1;
-	spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags);
-
-	ME_SUBDEVICE_EXIT;
-
-	return err;
-}
-
-static int me1400_ext_irq_io_irq_stop(struct me_subdevice *subdevice,
-				      struct file *filep,
-				      int channel, int flags)
-{
-	me1400_ext_irq_subdevice_t *instance;
-	unsigned long cpu_flags;
-	uint8_t tmp;
-	int err = ME_ERRNO_SUCCESS;
-
-	PDEBUG("executed.\n");
-
-	instance = (me1400_ext_irq_subdevice_t *) subdevice;
-
-	if (flags) {
-		PERROR("Invalid flag specified.\n");
-		return ME_ERRNO_INVALID_FLAGS;
-	}
-
-	if (channel) {
-		PERROR("Invalid channel.\n");
-		return ME_ERRNO_INVALID_CHANNEL;
-	}
-
-	ME_SUBDEVICE_ENTER;
-
-	spin_lock_irqsave(&instance->subdevice_lock, cpu_flags);
-	spin_lock(instance->clk_src_reg_lock);
-//                      // Disable IRQ on PLX
-//                      tmp = inb(instance->plx_intcs_reg) & ( ~(PLX_LOCAL_INT1_EN | PLX_LOCAL_INT1_POL | PLX_PCI_INT_EN));
-//                      outb(tmp, instance->plx_intcs_reg);
-//                      PDEBUG_REG("ctrl_reg outb(PLX:0x%lX)=0x%x\n", instance->plx_intcs_reg, tmp);
-
-	switch (instance->device_id) {
-	case PCI_DEVICE_ID_MEILHAUS_ME140C:
-	case PCI_DEVICE_ID_MEILHAUS_ME140D:
-		tmp = inb(instance->ctrl_reg);
-		tmp &= ~ME1400CD_EXT_IRQ_CLK_EN;
-		outb(tmp, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, tmp);
-
-		break;
-
-	default:
-		outb(0x00, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, 0x00);
-		break;
-	}
-	spin_unlock(instance->clk_src_reg_lock);
-	instance->rised = -1;
-	spin_unlock_irqrestore(&instance->subdevice_lock, cpu_flags);
-	wake_up_interruptible_all(&instance->wait_queue);
-
-	ME_SUBDEVICE_EXIT;
-
-	return err;
-}
-
-static int me1400_ext_irq_io_reset_subdevice(struct me_subdevice *subdevice,
-					     struct file *filep, int flags)
-{
-	me1400_ext_irq_subdevice_t *instance =
-	    (me1400_ext_irq_subdevice_t *) subdevice;
-
-	PDEBUG("executed.\n");
-
-	if (flags) {
-		PERROR("Invalid flag specified.\n");
-		return ME_ERRNO_INVALID_FLAGS;
-	}
-
-	instance->n = 0;
-	return me1400_ext_irq_io_irq_stop(subdevice, filep, 0, flags);
-}
-
-static int me1400_ext_irq_query_number_channels(struct me_subdevice *subdevice,
-						int *number)
-{
-	PDEBUG("executed.\n");
-	*number = ME1400_EXT_IRQ_NUMBER_CHANNELS;
-	return ME_ERRNO_SUCCESS;
-}
-
-static int me1400_ext_irq_query_subdevice_type(struct me_subdevice *subdevice,
-					       int *type, int *subtype)
-{
-	PDEBUG("executed.\n");
-	*type = ME_TYPE_EXT_IRQ;
-	*subtype = ME_SUBTYPE_SINGLE;
-	return ME_ERRNO_SUCCESS;
-}
-
-static int me1400_ext_irq_query_subdevice_caps(struct me_subdevice *subdevice,
-					       int *caps)
-{
-	PDEBUG("executed.\n");
-	*caps = ME_CAPS_EXT_IRQ_EDGE_RISING;
-	return ME_ERRNO_SUCCESS;
-}
-
-static int me1400_ext_irq_query_subdevice_caps_args(struct me_subdevice
-						    *subdevice, int cap,
-						    int *args, int count)
-{
-	PDEBUG("executed.\n");
-	return ME_ERRNO_NOT_SUPPORTED;
-}
-
-static irqreturn_t me1400_ext_irq_isr(int irq, void *dev_id)
-{
-	me1400_ext_irq_subdevice_t *instance;
-	uint32_t status;
-	uint8_t tmp;
-
-	instance = (me1400_ext_irq_subdevice_t *) dev_id;
-
-	if (irq != instance->irq) {
-		PERROR("Incorrect interrupt num: %d.\n", irq);
-		return IRQ_NONE;
-	}
-
-	spin_lock(&instance->subdevice_lock);
-	status = inl(instance->plx_intcs_reg);
-//              if (!((status & PLX_LOCAL_INT1_STATE) && (status & PLX_LOCAL_INT1_EN) && (status & PLX_PCI_INT_EN)))
-	if ((status &
-	     (PLX_LOCAL_INT1_STATE | PLX_LOCAL_INT1_EN | PLX_PCI_INT_EN)) !=
-	    (PLX_LOCAL_INT1_STATE | PLX_LOCAL_INT1_EN | PLX_PCI_INT_EN)) {
-		spin_unlock(&instance->subdevice_lock);
-		PINFO("%ld Shared interrupt. %s(): irq_status_reg=0x%04X\n",
-		      jiffies, __func__, status);
-		return IRQ_NONE;
-	}
-
-	inl(instance->ctrl_reg);
-
-	PDEBUG("executed.\n");
-
-	instance->n++;
-	instance->rised = 1;
-
-	switch (instance->device_id) {
-
-	case PCI_DEVICE_ID_MEILHAUS_ME140C:
-	case PCI_DEVICE_ID_MEILHAUS_ME140D:
-		spin_lock(instance->clk_src_reg_lock);
-		tmp = inb(instance->ctrl_reg);
-		tmp &= ~ME1400CD_EXT_IRQ_CLK_EN;
-		outb(tmp, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outb(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, tmp);
-		tmp |= ME1400CD_EXT_IRQ_CLK_EN;
-		outb(tmp, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outb(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, tmp);
-		spin_unlock(instance->clk_src_reg_lock);
-
-		break;
-
-	default:
-		outb(0, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outb(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base, 0);
-		outb(ME1400AB_EXT_IRQ_IRQ_EN, instance->ctrl_reg);
-		PDEBUG_REG("ctrl_reg outb(0x%lX+0x%lX)=0x%x\n",
-			   instance->reg_base,
-			   instance->ctrl_reg - instance->reg_base,
-			   ME1400AB_EXT_IRQ_IRQ_EN);
-		break;
-	}
-
-	spin_unlock(&instance->subdevice_lock);
-	wake_up_interruptible_all(&instance->wait_queue);
-
-	return IRQ_HANDLED;
-}
-
-static void me1400_ext_irq_destructor(struct me_subdevice *subdevice)
-{
-	me1400_ext_irq_subdevice_t *instance;
-	uint8_t tmp;
-
-	PDEBUG("executed.\n");
-
-	instance = (me1400_ext_irq_subdevice_t *) subdevice;
-
-	// Disable IRQ on PLX
-	tmp =
-	    inb(instance->
-		plx_intcs_reg) & (~(PLX_LOCAL_INT1_EN | PLX_LOCAL_INT1_POL |
-				    PLX_PCI_INT_EN));
-	outb(tmp, instance->plx_intcs_reg);
-	PDEBUG_REG("ctrl_reg outb(plx:0x%lX)=0x%x\n", instance->plx_intcs_reg,
-		   tmp);
-
-	free_irq(instance->irq, (void *)instance);
-	me_subdevice_deinit(&instance->base);
-	kfree(instance);
-}
-
-me1400_ext_irq_subdevice_t *me1400_ext_irq_constructor(uint32_t device_id,
-						       uint32_t plx_reg_base,
-						       uint32_t me1400_reg_base,
-						       spinlock_t *
-						       clk_src_reg_lock,
-						       int irq)
-{
-	me1400_ext_irq_subdevice_t *subdevice;
-	int err;
-	uint8_t tmp;
-
-	PDEBUG("executed.\n");
-
-	/* Allocate memory for subdevice instance */
-	subdevice = kmalloc(sizeof(me1400_ext_irq_subdevice_t), GFP_KERNEL);
-
-	if (!subdevice) {
-		PERROR("Cannot get memory for 1400_ext_irq instance.\n");
-		return NULL;
-	}
-
-	memset(subdevice, 0, sizeof(me1400_ext_irq_subdevice_t));
-
-	/* Initialize subdevice base class */
-	err = me_subdevice_init(&subdevice->base);
-
-	if (err) {
-		PERROR("Cannot initialize subdevice base class instance.\n");
-		kfree(subdevice);
-		return NULL;
-	}
-	// Initialize spin locks.
-	spin_lock_init(&subdevice->subdevice_lock);
-	subdevice->clk_src_reg_lock = clk_src_reg_lock;
-
-	/* Initialize wait queue */
-	init_waitqueue_head(&subdevice->wait_queue);
-
-	subdevice->irq = irq;
-
-	err = request_irq(irq, me1400_ext_irq_isr,
-			  IRQF_DISABLED | IRQF_SHARED,
-			  ME1400_NAME, (void *)subdevice);
-
-	if (err) {
-		PERROR("Can't get irq.\n");
-		me_subdevice_deinit(&subdevice->base);
-		kfree(subdevice);
-		return NULL;
-	}
-	PINFO("Registered irq=%d.\n", subdevice->irq);
-
-	/* Initialize registers */
-	subdevice->plx_intcs_reg = plx_reg_base + PLX_INTCSR_REG;
-	subdevice->ctrl_reg = me1400_reg_base + ME1400AB_EXT_IRQ_CTRL_REG;
-#ifdef MEDEBUG_DEBUG_REG
-	subdevice->reg_base = me1400_reg_base;
-#endif
-
-	// Enable IRQ on PLX
-	tmp =
-	    inb(subdevice->
-		plx_intcs_reg) | (PLX_LOCAL_INT1_EN | PLX_LOCAL_INT1_POL |
-				  PLX_PCI_INT_EN);
-	outb(tmp, subdevice->plx_intcs_reg);
-	PDEBUG_REG("ctrl_reg outb(Pplx:0x%lX)=0x%x\n", subdevice->plx_intcs_reg,
-		   tmp);
-
-	/* Initialize the subdevice methods */
-	subdevice->base.me_subdevice_io_irq_start = me1400_ext_irq_io_irq_start;
-	subdevice->base.me_subdevice_io_irq_wait = me1400_ext_irq_io_irq_wait;
-	subdevice->base.me_subdevice_io_irq_stop = me1400_ext_irq_io_irq_stop;
-	subdevice->base.me_subdevice_io_reset_subdevice =
-	    me1400_ext_irq_io_reset_subdevice;
-	subdevice->base.me_subdevice_query_number_channels =
-	    me1400_ext_irq_query_number_channels;
-	subdevice->base.me_subdevice_query_subdevice_type =
-	    me1400_ext_irq_query_subdevice_type;
-	subdevice->base.me_subdevice_query_subdevice_caps =
-	    me1400_ext_irq_query_subdevice_caps;
-	subdevice->base.me_subdevice_query_subdevice_caps_args =
-	    me1400_ext_irq_query_subdevice_caps_args;
-	subdevice->base.me_subdevice_destructor = me1400_ext_irq_destructor;
-
-	subdevice->rised = 0;
-	subdevice->n = 0;
-
-	return subdevice;
-}