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Diffstat (limited to 'drivers/staging/meilhaus/me8100_do.c')
-rw-r--r--drivers/staging/meilhaus/me8100_do.c391
1 files changed, 0 insertions, 391 deletions
diff --git a/drivers/staging/meilhaus/me8100_do.c b/drivers/staging/meilhaus/me8100_do.c
deleted file mode 100644
index 81651a90cc0..00000000000
--- a/drivers/staging/meilhaus/me8100_do.c
+++ /dev/null
@@ -1,391 +0,0 @@
-/**
- * @file me8100_do.c
- *
- * @brief ME-8100 digital output 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 "medefines.h"
-#include "meinternal.h"
-#include "meerror.h"
-
-#include "medebug.h"
-#include "me8100_reg.h"
-#include "me8100_do_reg.h"
-#include "me8100_do.h"
-
-/*
- * Defines
- */
-
-/*
- * Functions
- */
-
-static int me8100_do_io_reset_subdevice(struct me_subdevice *subdevice,
- struct file *filep, int flags)
-{
- me8100_do_subdevice_t *instance;
- uint16_t ctrl;
-
- PDEBUG("executed.\n");
-
- instance = (me8100_do_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);
- ctrl = inw(instance->ctrl_reg);
- ctrl &= ME8100_DIO_CTRL_BIT_INTB_1 | ME8100_DIO_CTRL_BIT_INTB_0;
- outw(ctrl, instance->ctrl_reg);
- PDEBUG_REG("ctrl_reg outw(0x%lX+0x%lX)=0x%x\n", instance->reg_base,
- instance->ctrl_reg - instance->reg_base, ctrl);
- spin_unlock(instance->ctrl_reg_lock);
- outw(0, instance->port_reg);
- instance->port_reg_mirror = 0;
- PDEBUG_REG("port_reg outw(0x%lX+0x%lX)=0x%x\n", instance->reg_base,
- instance->port_reg - instance->reg_base, 0);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return ME_ERRNO_SUCCESS;
-}
-
-static int me8100_do_io_single_config(me_subdevice_t *subdevice,
- struct file *filep,
- int channel,
- int single_config,
- int ref,
- int trig_chan,
- int trig_type, int trig_edge, int flags)
-{
- me8100_do_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
- int config;
-
- PDEBUG("executed.\n");
-
- instance = (me8100_do_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- spin_lock(instance->ctrl_reg_lock);
- config = inw(instance->ctrl_reg);
- switch (flags) {
- case ME_IO_SINGLE_CONFIG_NO_FLAGS:
- case ME_IO_SINGLE_CONFIG_DIO_WORD:
- if (channel == 0) {
- if (single_config ==
- ME_SINGLE_CONFIG_DIO_HIGH_IMPEDANCE) {
- config &= ~(ME8100_DIO_CTRL_BIT_ENABLE_DIO);
- } else if (single_config == ME_SINGLE_CONFIG_DIO_SINK) {
- config |= ME8100_DIO_CTRL_BIT_ENABLE_DIO;
- config &= ~ME8100_DIO_CTRL_BIT_SOURCE;
- } else if (single_config == ME_SINGLE_CONFIG_DIO_SOURCE) {
- config |=
- ME8100_DIO_CTRL_BIT_ENABLE_DIO |
- ME8100_DIO_CTRL_BIT_SOURCE;
- } else {
- PERROR
- ("Invalid port configuration specified.\n");
- err = ME_ERRNO_INVALID_SINGLE_CONFIG;
- }
- } else {
- PERROR("Invalid word number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- default:
- PERROR("Invalid flags specified.\n");
- err = ME_ERRNO_INVALID_FLAGS;
- }
-
- if (!err) {
- outw(config, instance->ctrl_reg);
- PDEBUG_REG("ctrl_reg outw(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->ctrl_reg - instance->reg_base, config);
- }
-
- spin_unlock(instance->ctrl_reg_lock);
- spin_unlock(&instance->subdevice_lock);
-
- ME_SUBDEVICE_EXIT;
-
- return err;
-}
-
-static int me8100_do_io_single_read(me_subdevice_t *subdevice,
- struct file *filep,
- int channel,
- int *value, int time_out, int flags)
-{
- me8100_do_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
-
- PDEBUG("executed.\n");
-
- instance = (me8100_do_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- switch (flags) {
- case ME_IO_SINGLE_TYPE_DIO_BIT:
- if ((channel >= 0) && (channel < 16)) {
- *value = instance->port_reg_mirror & (0x1 << channel);
- } else {
- PERROR("Invalid bit number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_BYTE:
- if (channel == 0) {
- *value = instance->port_reg_mirror & 0xFF;
- } else if (channel == 1) {
- *value = (instance->port_reg_mirror >> 8) & 0xFF;
- } else {
- PERROR("Invalid byte number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_NO_FLAGS:
- case ME_IO_SINGLE_TYPE_DIO_WORD:
- if (channel == 0) {
- *value = instance->port_reg_mirror;
- } else {
- PERROR("Invalid word number specified.\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 me8100_do_io_single_write(me_subdevice_t *subdevice,
- struct file *filep,
- int channel,
- int value, int time_out, int flags)
-{
- me8100_do_subdevice_t *instance;
- int err = ME_ERRNO_SUCCESS;
-
- PDEBUG("executed.\n");
-
- instance = (me8100_do_subdevice_t *) subdevice;
-
- ME_SUBDEVICE_ENTER;
-
- spin_lock(&instance->subdevice_lock);
- switch (flags) {
- case ME_IO_SINGLE_TYPE_DIO_BIT:
- if ((channel >= 0) && (channel < 16)) {
- instance->port_reg_mirror =
- value ? (instance->
- port_reg_mirror | (0x1 << channel))
- : (instance->port_reg_mirror & ~(0x1 << channel));
- outw(instance->port_reg_mirror, instance->port_reg);
- PDEBUG_REG("port_reg outw(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg - instance->reg_base,
- instance->port_reg_mirror);
- } else {
- PERROR("Invalid bit number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_TYPE_DIO_BYTE:
- if (channel == 0) {
- instance->port_reg_mirror &= ~0xFF;
- instance->port_reg_mirror |= value & 0xFF;
- outw(instance->port_reg_mirror, instance->port_reg);
- PDEBUG_REG("port_reg outw(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg - instance->reg_base,
- instance->port_reg_mirror);
- } else if (channel == 1) {
- instance->port_reg_mirror &= ~0xFF00;
- instance->port_reg_mirror |= (value << 8) & 0xFF00;
- outw(instance->port_reg_mirror, instance->port_reg);
- PDEBUG_REG("port_reg outw(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg - instance->reg_base,
- instance->port_reg_mirror);
- } else {
- PERROR("Invalid byte number specified.\n");
- err = ME_ERRNO_INVALID_CHANNEL;
- }
- break;
-
- case ME_IO_SINGLE_NO_FLAGS:
- case ME_IO_SINGLE_TYPE_DIO_WORD:
- if (channel == 0) {
- instance->port_reg_mirror = value;
- outw(value, instance->port_reg);
- PDEBUG_REG("port_reg outw(0x%lX+0x%lX)=0x%x\n",
- instance->reg_base,
- instance->port_reg - instance->reg_base,
- value);
- } else {
- PERROR("Invalid byte number specified.\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 me8100_do_query_number_channels(me_subdevice_t *subdevice,
- int *number)
-{
- PDEBUG("executed.\n");
- *number = 16;
- return ME_ERRNO_SUCCESS;
-}
-
-static int me8100_do_query_subdevice_type(me_subdevice_t *subdevice,
- int *type, int *subtype)
-{
- PDEBUG("executed.\n");
- *type = ME_TYPE_DO;
- *subtype = ME_SUBTYPE_SINGLE;
- return ME_ERRNO_SUCCESS;
-}
-
-static int me8100_do_query_subdevice_caps(me_subdevice_t *subdevice, int *caps)
-{
- PDEBUG("executed.\n");
- *caps = ME_CAPS_DIO_SINK_SOURCE;
- return ME_ERRNO_SUCCESS;
-}
-
-me8100_do_subdevice_t *me8100_do_constructor(uint32_t reg_base,
- unsigned int do_idx,
- spinlock_t *ctrl_reg_lock)
-{
- me8100_do_subdevice_t *subdevice;
- int err;
-
- PDEBUG("executed.\n");
-
- /* Allocate memory for subdevice instance */
- subdevice = kmalloc(sizeof(me8100_do_subdevice_t), GFP_KERNEL);
-
- if (!subdevice) {
- PERROR("Cannot get memory for subdevice instance.\n");
- return NULL;
- }
-
- memset(subdevice, 0, sizeof(me8100_do_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 registers */
- if (do_idx == 0) {
- subdevice->port_reg = reg_base + ME8100_DO_REG_A;
- subdevice->ctrl_reg = reg_base + ME8100_CTRL_REG_A;
- } else if (do_idx == 1) {
- subdevice->port_reg = reg_base + ME8100_DO_REG_B;
- subdevice->ctrl_reg = reg_base + ME8100_CTRL_REG_B;
- } else {
- PERROR("Wrong subdevice idx=%d.\n", do_idx);
- kfree(subdevice);
- return NULL;
- }
-#ifdef MEDEBUG_DEBUG_REG
- subdevice->reg_base = reg_base;
-#endif
-
- // Initialize spin locks.
- spin_lock_init(&subdevice->subdevice_lock);
- subdevice->ctrl_reg_lock = ctrl_reg_lock;
-
- /* Save the subdevice index */
- subdevice->do_idx = do_idx;
-
- /* Overload base class methods. */
- subdevice->base.me_subdevice_io_reset_subdevice =
- me8100_do_io_reset_subdevice;
- subdevice->base.me_subdevice_io_single_config =
- me8100_do_io_single_config;
- subdevice->base.me_subdevice_io_single_read = me8100_do_io_single_read;
- subdevice->base.me_subdevice_io_single_write =
- me8100_do_io_single_write;
- subdevice->base.me_subdevice_query_number_channels =
- me8100_do_query_number_channels;
- subdevice->base.me_subdevice_query_subdevice_type =
- me8100_do_query_subdevice_type;
- subdevice->base.me_subdevice_query_subdevice_caps =
- me8100_do_query_subdevice_caps;
-
- return subdevice;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-14 08:51:39 +0000