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-rw-r--r--drivers/staging/meilhaus/me1000_dio.c438
1 files changed, 0 insertions, 438 deletions
diff --git a/drivers/staging/meilhaus/me1000_dio.c b/drivers/staging/meilhaus/me1000_dio.c
deleted file mode 100644
index 2d7ed07d1f39..000000000000
--- a/drivers/staging/meilhaus/me1000_dio.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/**
- * @file me1000_dio.c
- *
- * @brief ME-1000 DIO subdevice instance.
- * @note Copyright (C) 2006 Meilhaus Electronic GmbH (support@meilhaus.de)
- * @author Guenter Gebhardt
- * @author Krzysztof Gantzke (k.gantzke@meilhaus.de)
- */
-
-/*
- * Copyright (C) 2006 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 "medefines.h"
-#include "meinternal.h"
-#include "meerror.h"
-#include "medebug.h"
-
-#include "me1000_dio_reg.h"
-#include "me1000_dio.h"
-
-/*
- * Defines
- */
-#define ME1000_DIO_MAGIC_NUMBER 0x1000 /**< The magic number of the class structure. */
-
-/*
- * Functions
- */
-
-static int me1000_dio_io_reset_subdevice(struct me_subdevice *subdevice,
- struct file *filep, int flags)
-{
- me1000_dio_subdevice_t *instance;
- uint32_t tmp;
-
- PDEBUG("executed.\n");
-
- instance = (me1000_dio_subdevice_t *) subdevice;
-
- if (flags) {
- PERROR("Invalid flag specified.\n");
- return ME_ERRNO_INVALID_FLAGS;
- }
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- spin_lock(instance->ctrl_reg_lock);
- tmp = inl(instance->ctrl_reg);
- tmp &= ~(0x1 << instance->dio_idx);
- outl(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);
- spin_unlock(instance->ctrl_reg_lock);
-
- outl(0x00000000, instance->port_reg);
- PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n", instance->reg_base,
- instance->ctrl_reg - instance->reg_base, 0);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return ME_ERRNO_SUCCESS;
-}
-
-static int me1000_dio_io_single_config(struct me_subdevice *subdevice,
- struct file *filep,
- int channel,
- int single_config,
- int ref,
- int trig_chan,
- int trig_type, int trig_edge, int flags)
-{
- me1000_dio_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
- int ctrl;
- int size =
- flags & (ME_IO_SINGLE_CONFIG_DIO_BIT | ME_IO_SINGLE_CONFIG_DIO_BYTE
- | ME_IO_SINGLE_CONFIG_DIO_WORD |
- ME_IO_SINGLE_CONFIG_DIO_DWORD);
-
- PDEBUG("executed.\n");
-
- instance = (me1000_dio_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- spin_lock(instance->ctrl_reg_lock);
- ctrl = inl(instance->ctrl_reg);
-
- switch (size) {
- case ME_IO_SINGLE_CONFIG_NO_FLAGS:
- case ME_IO_SINGLE_CONFIG_DIO_DWORD:
- if (channel == 0) {
- if (single_config == ME_SINGLE_CONFIG_DIO_INPUT) {
- ctrl &= ~(0x1 << instance->dio_idx);
- } else if (single_config == ME_SINGLE_CONFIG_DIO_OUTPUT) {
- ctrl |= 0x1 << instance->dio_idx;
- } else {
- PERROR("Invalid port direction.\n");
- err = ME_ERRNO_INVALID_SINGLE_CONFIG;
- }
- } else {
- PERROR("Invalid channel number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
-
- if (!err) {
- outl(ctrl, instance->ctrl_reg);
- PDEBUG_REG("ctrl_reg outl(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->ctrl_reg - instance->reg_base, ctrl);
- }
- spin_unlock(instance->ctrl_reg_lock);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me1000_dio_io_single_read(struct me_subdevice *subdevice,
- struct file *filep,
- int channel,
- int *value, int time_out, int flags)
-{
- me1000_dio_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
-
- PDEBUG("executed.\n");
-
- instance = (me1000_dio_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- switch (flags) {
- case ME_IO_SINGLE_TYPE_DIO_BIT:
- if ((channel >= 0) && (channel < 32)) {
- *value = inl(instance->port_reg) & (0x1 << channel);
- } else {
- PERROR("Invalid bit number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_BYTE:
- if ((channel >= 0) && (channel < 4)) {
- *value =
- (inl(instance->port_reg) >> (channel * 8)) & 0xFF;
- } else {
- PERROR("Invalid byte number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_WORD:
- if ((channel >= 0) && (channel < 2)) {
- *value =
- (inl(instance->port_reg) >> (channel * 16)) &
- 0xFFFF;
- } else {
- PERROR("Invalid word number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_NO_FLAGS:
- case ME_IO_SINGLE_TYPE_DIO_DWORD:
- if (channel == 0) {
- *value = inl(instance->port_reg);
- } else {
- PERROR("Invalid dword number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags specified.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me1000_dio_io_single_write(struct me_subdevice *subdevice,
- struct file *filep,
- int channel,
- int value, int time_out, int flags)
-{
- me1000_dio_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
- uint32_t config;
- uint32_t state;
-
- PDEBUG("executed.\n");
-
- instance = (me1000_dio_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER spin_lock(&instance->subdevice_lock);
- spin_lock(instance->ctrl_reg_lock);
- config = inl(instance->ctrl_reg) & (0x1 << instance->dio_idx);
- switch (flags) {
- case ME_IO_SINGLE_TYPE_DIO_BIT:
- if ((channel >= 0) && (channel < 32)) {
- if (config) {
- state = inl(instance->port_reg);
- state =
- value ? (state | (0x1 << channel)) : (state
- &
- ~(0x1
- <<
- channel));
- outl(state, instance->port_reg);
- PDEBUG_REG("port_reg outl(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg -
- instance->reg_base, state);
- } else {
- PERROR("Port is not in output mode.\n");
- err = ME_ERRNO_PREVIOUS_CONFIG;
- }
- } else {
- PERROR("Invalid bit number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_BYTE:
- if ((channel >= 0) && (channel < 4)) {
- if (config) {
- state = inl(instance->port_reg);
- state &= ~(0xFF << (channel * 8));
- state |= (value & 0xFF) << (channel * 8);
- outl(state, instance->port_reg);
- PDEBUG_REG("port_reg outl(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg -
- instance->reg_base, state);
- } else {
- PERROR("Port is not in output mode.\n");
- err = ME_ERRNO_PREVIOUS_CONFIG;
- }
- } else {
- PERROR("Invalid byte number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_WORD:
- if ((channel >= 0) && (channel < 2)) {
- if (config) {
- state = inl(instance->port_reg);
- state &= ~(0xFFFF << (channel * 16));
- state |= (value & 0xFFFF) << (channel * 16);
- outl(state, instance->port_reg);
- PDEBUG_REG("port_reg outl(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg -
- instance->reg_base, state);
- } else {
- PERROR("Port is not in output mode.\n");
- err = ME_ERRNO_PREVIOUS_CONFIG;
- }
- } else {
- PERROR("Invalid word number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_NO_FLAGS:
- case ME_IO_SINGLE_TYPE_DIO_DWORD:
- if (channel == 0) {
- if (config) {
- outl(value, instance->port_reg);
- PDEBUG_REG("port_reg outl(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg -
- instance->reg_base, value);
- } else {
- PERROR("Port is not in output mode.\n");
- err = ME_ERRNO_PREVIOUS_CONFIG;
- }
- } else {
- PERROR("Invalid dword number.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags specified.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
- spin_unlock(instance->ctrl_reg_lock);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me1000_dio_query_number_channels(struct me_subdevice *subdevice,
- int *number)
-{
- PDEBUG("executed.\n");
- *number = ME1000_DIO_NUMBER_CHANNELS;
- return ME_ERRNO_SUCCESS;
-}
-
-static int me1000_dio_query_subdevice_type(struct me_subdevice *subdevice,
- int *type, int *subtype)
-{
- PDEBUG("executed.\n");
- *type = ME_TYPE_DIO;
- *subtype = ME_SUBTYPE_SINGLE;
- return ME_ERRNO_SUCCESS;
-}
-
-static int me1000_dio_query_subdevice_caps(struct me_subdevice *subdevice,
- int *caps)
-{
- me1000_dio_subdevice_t *instance;
-
- PDEBUG("executed.\n");
-
- instance = (me1000_dio_subdevice_t *) subdevice;
-
- *caps = ME_CAPS_DIO_DIR_DWORD;
-
- return ME_ERRNO_SUCCESS;
-}
-
-me1000_dio_subdevice_t *me1000_dio_constructor(uint32_t reg_base,
- unsigned int dio_idx,
- spinlock_t *ctrl_reg_lock)
-{
- me1000_dio_subdevice_t *subdevice;
- int err;
-
- PDEBUG("executed.\n");
-
- /* Allocate memory for subdevice instance */
- subdevice = kmalloc(sizeof(me1000_dio_subdevice_t), GFP_KERNEL);
-
- if (!subdevice) {
- PERROR("Cannot get memory for ME-1000 DIO instance.\n");
- return NULL;
- }
-
- memset(subdevice, 0, sizeof(me1000_dio_subdevice_t));
-
- /* Check if counter index is out of range */
-
- if (dio_idx >= ME1000_DIO_NUMBER_PORTS) {
- PERROR("DIO index is out of range.\n");
- kfree(subdevice);
- return NULL;
- }
-
- /* 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->ctrl_reg_lock = ctrl_reg_lock;
-
- /* Save the DIO index */
- subdevice->dio_idx = dio_idx;
-
- /* Initialize registers. */
-#ifdef MEDEBUG_DEBUG_REG
- subdevice->reg_base = reg_base;
-#endif
- subdevice->ctrl_reg = reg_base + ME1000_PORT_MODE;
- subdevice->port_reg =
- reg_base + ME1000_PORT + (dio_idx * ME1000_PORT_STEP);
-
- /* Override base class methods. */
- subdevice->base.me_subdevice_io_reset_subdevice =
- me1000_dio_io_reset_subdevice;
- subdevice->base.me_subdevice_io_single_config =
- me1000_dio_io_single_config;
- subdevice->base.me_subdevice_io_single_read = me1000_dio_io_single_read;
- subdevice->base.me_subdevice_io_single_write =
- me1000_dio_io_single_write;
- subdevice->base.me_subdevice_query_number_channels =
- me1000_dio_query_number_channels;
- subdevice->base.me_subdevice_query_subdevice_type =
- me1000_dio_query_subdevice_type;
- subdevice->base.me_subdevice_query_subdevice_caps =
- me1000_dio_query_subdevice_caps;
-
- return subdevice;
-}
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