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674 lines
18 KiB
674 lines
18 KiB
/*
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*
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* mwavedd.c -- mwave device driver
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*
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*
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* Written By: Mike Sullivan IBM Corporation
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*
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* Copyright (C) 1999 IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* NO WARRANTY
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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* solely responsible for determining the appropriateness of using and
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* distributing the Program and assumes all risks associated with its
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* exercise of rights under this Agreement, including but not limited to
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* the risks and costs of program errors, damage to or loss of data,
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* programs or equipment, and unavailability or interruption of operations.
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*
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* DISCLAIMER OF LIABILITY
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*
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* 10/23/2000 - Alpha Release
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* First release to the public
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/major.h>
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#include <linux/miscdevice.h>
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#include <linux/device.h>
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#include <linux/serial.h>
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#include <linux/sched.h>
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#include <linux/spinlock.h>
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#include <linux/delay.h>
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#include "smapi.h"
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#include "mwavedd.h"
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#include "3780i.h"
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#include "tp3780i.h"
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MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver");
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MODULE_AUTHOR("Mike Sullivan and Paul Schroeder");
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MODULE_LICENSE("GPL");
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/*
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* These parameters support the setting of MWave resources. Note that no
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* checks are made against other devices (ie. superio) for conflicts.
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* We'll depend on users using the tpctl utility to do that for now
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*/
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int mwave_debug = 0;
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int mwave_3780i_irq = 0;
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int mwave_3780i_io = 0;
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int mwave_uart_irq = 0;
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int mwave_uart_io = 0;
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module_param(mwave_debug, int, 0);
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module_param(mwave_3780i_irq, int, 0);
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module_param(mwave_3780i_io, int, 0);
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module_param(mwave_uart_irq, int, 0);
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module_param(mwave_uart_io, int, 0);
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static int mwave_open(struct inode *inode, struct file *file);
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static int mwave_close(struct inode *inode, struct file *file);
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static int mwave_ioctl(struct inode *inode, struct file *filp,
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unsigned int iocmd, unsigned long ioarg);
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MWAVE_DEVICE_DATA mwave_s_mdd;
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static int mwave_open(struct inode *inode, struct file *file)
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{
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unsigned int retval = 0;
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PRINTK_3(TRACE_MWAVE,
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"mwavedd::mwave_open, entry inode %p file %p\n",
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inode, file);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_open, exit return retval %x\n", retval);
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return retval;
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}
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static int mwave_close(struct inode *inode, struct file *file)
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{
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unsigned int retval = 0;
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PRINTK_3(TRACE_MWAVE,
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"mwavedd::mwave_close, entry inode %p file %p\n",
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inode, file);
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PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n",
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retval);
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return retval;
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}
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static int mwave_ioctl(struct inode *inode, struct file *file,
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unsigned int iocmd, unsigned long ioarg)
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{
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unsigned int retval = 0;
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pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
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void __user *arg = (void __user *)ioarg;
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PRINTK_5(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n",
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inode, file, iocmd, (int) ioarg);
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switch (iocmd) {
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case IOCTL_MW_RESET:
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PRINTK_1(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
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" calling tp3780I_ResetDSP\n");
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retval = tp3780I_ResetDSP(&pDrvData->rBDData);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
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" retval %x from tp3780I_ResetDSP\n",
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retval);
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break;
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case IOCTL_MW_RUN:
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PRINTK_1(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
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" calling tp3780I_StartDSP\n");
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retval = tp3780I_StartDSP(&pDrvData->rBDData);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
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" retval %x from tp3780I_StartDSP\n",
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retval);
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break;
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case IOCTL_MW_DSP_ABILITIES: {
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MW_ABILITIES rAbilities;
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PRINTK_1(TRACE_MWAVE,
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"mwavedd::mwave_ioctl,"
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" IOCTL_MW_DSP_ABILITIES calling"
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" tp3780I_QueryAbilities\n");
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retval = tp3780I_QueryAbilities(&pDrvData->rBDData,
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&rAbilities);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
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" retval %x from tp3780I_QueryAbilities\n",
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retval);
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if (retval == 0) {
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if( copy_to_user(arg, &rAbilities,
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sizeof(MW_ABILITIES)) )
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return -EFAULT;
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}
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
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" exit retval %x\n",
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retval);
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}
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break;
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case IOCTL_MW_READ_DATA:
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case IOCTL_MW_READCLEAR_DATA: {
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MW_READWRITE rReadData;
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unsigned short __user *pusBuffer = NULL;
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if( copy_from_user(&rReadData, arg,
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sizeof(MW_READWRITE)) )
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return -EFAULT;
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pusBuffer = (unsigned short __user *) (rReadData.pBuf);
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PRINTK_4(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_READ_DATA,"
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" size %lx, ioarg %lx pusBuffer %p\n",
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rReadData.ulDataLength, ioarg, pusBuffer);
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retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
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iocmd,
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pusBuffer,
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rReadData.ulDataLength,
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rReadData.usDspAddress);
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}
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break;
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case IOCTL_MW_READ_INST: {
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MW_READWRITE rReadData;
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unsigned short __user *pusBuffer = NULL;
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if( copy_from_user(&rReadData, arg,
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sizeof(MW_READWRITE)) )
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return -EFAULT;
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pusBuffer = (unsigned short __user *) (rReadData.pBuf);
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PRINTK_4(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_READ_INST,"
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" size %lx, ioarg %lx pusBuffer %p\n",
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rReadData.ulDataLength / 2, ioarg,
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pusBuffer);
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retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
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iocmd, pusBuffer,
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rReadData.ulDataLength / 2,
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rReadData.usDspAddress);
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}
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break;
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case IOCTL_MW_WRITE_DATA: {
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MW_READWRITE rWriteData;
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unsigned short __user *pusBuffer = NULL;
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if( copy_from_user(&rWriteData, arg,
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sizeof(MW_READWRITE)) )
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return -EFAULT;
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pusBuffer = (unsigned short __user *) (rWriteData.pBuf);
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PRINTK_4(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA,"
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" size %lx, ioarg %lx pusBuffer %p\n",
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rWriteData.ulDataLength, ioarg,
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pusBuffer);
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retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
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iocmd, pusBuffer,
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rWriteData.ulDataLength,
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rWriteData.usDspAddress);
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}
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break;
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case IOCTL_MW_WRITE_INST: {
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MW_READWRITE rWriteData;
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unsigned short __user *pusBuffer = NULL;
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if( copy_from_user(&rWriteData, arg,
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sizeof(MW_READWRITE)) )
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return -EFAULT;
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pusBuffer = (unsigned short __user *)(rWriteData.pBuf);
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PRINTK_4(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST,"
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" size %lx, ioarg %lx pusBuffer %p\n",
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rWriteData.ulDataLength, ioarg,
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pusBuffer);
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retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData,
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iocmd, pusBuffer,
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rWriteData.ulDataLength,
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rWriteData.usDspAddress);
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}
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break;
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case IOCTL_MW_REGISTER_IPC: {
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unsigned int ipcnum = (unsigned int) ioarg;
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PRINTK_3(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
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" ipcnum %x entry usIntCount %x\n",
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ipcnum,
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pDrvData->IPCs[ipcnum].usIntCount);
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if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
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PRINTK_ERROR(KERN_ERR_MWAVE
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"mwavedd::mwave_ioctl:"
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" IOCTL_MW_REGISTER_IPC:"
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" Error: Invalid ipcnum %x\n",
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ipcnum);
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return -EINVAL;
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}
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pDrvData->IPCs[ipcnum].bIsHere = FALSE;
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pDrvData->IPCs[ipcnum].bIsEnabled = TRUE;
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
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" ipcnum %x exit\n",
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ipcnum);
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}
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break;
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case IOCTL_MW_GET_IPC: {
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unsigned int ipcnum = (unsigned int) ioarg;
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PRINTK_3(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_GET_IPC"
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" ipcnum %x, usIntCount %x\n",
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ipcnum,
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pDrvData->IPCs[ipcnum].usIntCount);
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if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
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PRINTK_ERROR(KERN_ERR_MWAVE
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"mwavedd::mwave_ioctl:"
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" IOCTL_MW_GET_IPC: Error:"
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" Invalid ipcnum %x\n", ipcnum);
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return -EINVAL;
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}
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if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
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DECLARE_WAITQUEUE(wait, current);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl, thread for"
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" ipc %x going to sleep\n",
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ipcnum);
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add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
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pDrvData->IPCs[ipcnum].bIsHere = TRUE;
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set_current_state(TASK_INTERRUPTIBLE);
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/* check whether an event was signalled by */
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/* the interrupt handler while we were gone */
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if (pDrvData->IPCs[ipcnum].usIntCount == 1) { /* first int has occurred (race condition) */
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pDrvData->IPCs[ipcnum].usIntCount = 2; /* first int has been handled */
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl"
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" IOCTL_MW_GET_IPC ipcnum %x"
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" handling first int\n",
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ipcnum);
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} else { /* either 1st int has not yet occurred, or we have already handled the first int */
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schedule();
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if (pDrvData->IPCs[ipcnum].usIntCount == 1) {
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pDrvData->IPCs[ipcnum].usIntCount = 2;
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}
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl"
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" IOCTL_MW_GET_IPC ipcnum %x"
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" woke up and returning to"
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" application\n",
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ipcnum);
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}
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pDrvData->IPCs[ipcnum].bIsHere = FALSE;
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remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
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set_current_state(TASK_RUNNING);
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_GET_IPC,"
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" returning thread for ipc %x"
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" processing\n",
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ipcnum);
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}
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}
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break;
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case IOCTL_MW_UNREGISTER_IPC: {
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unsigned int ipcnum = (unsigned int) ioarg;
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PRINTK_2(TRACE_MWAVE,
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"mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC"
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" ipcnum %x\n",
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ipcnum);
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if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
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PRINTK_ERROR(KERN_ERR_MWAVE
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"mwavedd::mwave_ioctl:"
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" IOCTL_MW_UNREGISTER_IPC:"
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" Error: Invalid ipcnum %x\n",
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ipcnum);
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return -EINVAL;
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}
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if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
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pDrvData->IPCs[ipcnum].bIsEnabled = FALSE;
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if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) {
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wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue);
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}
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}
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}
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break;
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default:
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PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:"
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" Error: Unrecognized iocmd %x\n",
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iocmd);
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return -ENOTTY;
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break;
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} /* switch */
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PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval);
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return retval;
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}
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static ssize_t mwave_read(struct file *file, char __user *buf, size_t count,
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loff_t * ppos)
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{
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PRINTK_5(TRACE_MWAVE,
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"mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n",
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file, buf, count, ppos);
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return -EINVAL;
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}
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static ssize_t mwave_write(struct file *file, const char __user *buf,
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size_t count, loff_t * ppos)
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{
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PRINTK_5(TRACE_MWAVE,
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"mwavedd::mwave_write entry file %p, buf %p,"
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" count %zx ppos %p\n",
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file, buf, count, ppos);
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return -EINVAL;
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}
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static int register_serial_portandirq(unsigned int port, int irq)
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{
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struct serial_struct serial;
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switch ( port ) {
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case 0x3f8:
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case 0x2f8:
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case 0x3e8:
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case 0x2e8:
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/* OK */
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break;
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default:
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PRINTK_ERROR(KERN_ERR_MWAVE
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"mwavedd::register_serial_portandirq:"
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" Error: Illegal port %x\n", port );
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return -1;
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} /* switch */
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/* port is okay */
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switch ( irq ) {
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case 3:
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case 4:
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case 5:
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case 7:
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/* OK */
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break;
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default:
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PRINTK_ERROR(KERN_ERR_MWAVE
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"mwavedd::register_serial_portandirq:"
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" Error: Illegal irq %x\n", irq );
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return -1;
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} /* switch */
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/* irq is okay */
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memset(&serial, 0, sizeof(serial));
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serial.port = port;
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serial.irq = irq;
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serial.flags = ASYNC_SHARE_IRQ;
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return register_serial(&serial);
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}
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static struct file_operations mwave_fops = {
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.owner = THIS_MODULE,
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.read = mwave_read,
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.write = mwave_write,
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.ioctl = mwave_ioctl,
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.open = mwave_open,
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.release = mwave_close
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};
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static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops };
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#if 0 /* totally b0rked */
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/*
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* sysfs support <paulsch@us.ibm.com>
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*/
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struct device mwave_device;
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/* Prevent code redundancy, create a macro for mwave_show_* functions. */
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#define mwave_show_function(attr_name, format_string, field) \
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static ssize_t mwave_show_##attr_name(struct device *dev, char *buf) \
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{ \
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DSP_3780I_CONFIG_SETTINGS *pSettings = \
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&mwave_s_mdd.rBDData.rDspSettings; \
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return sprintf(buf, format_string, pSettings->field); \
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}
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/* All of our attributes are read attributes. */
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#define mwave_dev_rd_attr(attr_name, format_string, field) \
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mwave_show_function(attr_name, format_string, field) \
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static DEVICE_ATTR(attr_name, S_IRUGO, mwave_show_##attr_name, NULL)
|
|
|
|
mwave_dev_rd_attr (3780i_dma, "%i\n", usDspDma);
|
|
mwave_dev_rd_attr (3780i_irq, "%i\n", usDspIrq);
|
|
mwave_dev_rd_attr (3780i_io, "%#.4x\n", usDspBaseIO);
|
|
mwave_dev_rd_attr (uart_irq, "%i\n", usUartIrq);
|
|
mwave_dev_rd_attr (uart_io, "%#.4x\n", usUartBaseIO);
|
|
|
|
static struct device_attribute * const mwave_dev_attrs[] = {
|
|
&dev_attr_3780i_dma,
|
|
&dev_attr_3780i_irq,
|
|
&dev_attr_3780i_io,
|
|
&dev_attr_uart_irq,
|
|
&dev_attr_uart_io,
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* mwave_init is called on module load
|
|
*
|
|
* mwave_exit is called on module unload
|
|
* mwave_exit is also used to clean up after an aborted mwave_init
|
|
*/
|
|
static void mwave_exit(void)
|
|
{
|
|
pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
|
|
|
|
PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n");
|
|
|
|
#if 0
|
|
for (i = 0; i < pDrvData->nr_registered_attrs; i++)
|
|
device_remove_file(&mwave_device, mwave_dev_attrs[i]);
|
|
pDrvData->nr_registered_attrs = 0;
|
|
|
|
if (pDrvData->device_registered) {
|
|
device_unregister(&mwave_device);
|
|
pDrvData->device_registered = FALSE;
|
|
}
|
|
#endif
|
|
|
|
if ( pDrvData->sLine >= 0 ) {
|
|
unregister_serial(pDrvData->sLine);
|
|
}
|
|
if (pDrvData->bMwaveDevRegistered) {
|
|
misc_deregister(&mwave_misc_dev);
|
|
}
|
|
if (pDrvData->bDSPEnabled) {
|
|
tp3780I_DisableDSP(&pDrvData->rBDData);
|
|
}
|
|
if (pDrvData->bResourcesClaimed) {
|
|
tp3780I_ReleaseResources(&pDrvData->rBDData);
|
|
}
|
|
if (pDrvData->bBDInitialized) {
|
|
tp3780I_Cleanup(&pDrvData->rBDData);
|
|
}
|
|
|
|
PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit exit\n");
|
|
}
|
|
|
|
module_exit(mwave_exit);
|
|
|
|
static int __init mwave_init(void)
|
|
{
|
|
int i;
|
|
int retval = 0;
|
|
pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
|
|
|
|
PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n");
|
|
|
|
memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA));
|
|
|
|
pDrvData->bBDInitialized = FALSE;
|
|
pDrvData->bResourcesClaimed = FALSE;
|
|
pDrvData->bDSPEnabled = FALSE;
|
|
pDrvData->bDSPReset = FALSE;
|
|
pDrvData->bMwaveDevRegistered = FALSE;
|
|
pDrvData->sLine = -1;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(pDrvData->IPCs); i++) {
|
|
pDrvData->IPCs[i].bIsEnabled = FALSE;
|
|
pDrvData->IPCs[i].bIsHere = FALSE;
|
|
pDrvData->IPCs[i].usIntCount = 0; /* no ints received yet */
|
|
init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue);
|
|
}
|
|
|
|
retval = tp3780I_InitializeBoardData(&pDrvData->rBDData);
|
|
PRINTK_2(TRACE_MWAVE,
|
|
"mwavedd::mwave_init, return from tp3780I_InitializeBoardData"
|
|
" retval %x\n",
|
|
retval);
|
|
if (retval) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd::mwave_init: Error:"
|
|
" Failed to initialize board data\n");
|
|
goto cleanup_error;
|
|
}
|
|
pDrvData->bBDInitialized = TRUE;
|
|
|
|
retval = tp3780I_CalcResources(&pDrvData->rBDData);
|
|
PRINTK_2(TRACE_MWAVE,
|
|
"mwavedd::mwave_init, return from tp3780I_CalcResources"
|
|
" retval %x\n",
|
|
retval);
|
|
if (retval) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to calculate resources\n");
|
|
goto cleanup_error;
|
|
}
|
|
|
|
retval = tp3780I_ClaimResources(&pDrvData->rBDData);
|
|
PRINTK_2(TRACE_MWAVE,
|
|
"mwavedd::mwave_init, return from tp3780I_ClaimResources"
|
|
" retval %x\n",
|
|
retval);
|
|
if (retval) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to claim resources\n");
|
|
goto cleanup_error;
|
|
}
|
|
pDrvData->bResourcesClaimed = TRUE;
|
|
|
|
retval = tp3780I_EnableDSP(&pDrvData->rBDData);
|
|
PRINTK_2(TRACE_MWAVE,
|
|
"mwavedd::mwave_init, return from tp3780I_EnableDSP"
|
|
" retval %x\n",
|
|
retval);
|
|
if (retval) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to enable DSP\n");
|
|
goto cleanup_error;
|
|
}
|
|
pDrvData->bDSPEnabled = TRUE;
|
|
|
|
if (misc_register(&mwave_misc_dev) < 0) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to register misc device\n");
|
|
goto cleanup_error;
|
|
}
|
|
pDrvData->bMwaveDevRegistered = TRUE;
|
|
|
|
pDrvData->sLine = register_serial_portandirq(
|
|
pDrvData->rBDData.rDspSettings.usUartBaseIO,
|
|
pDrvData->rBDData.rDspSettings.usUartIrq
|
|
);
|
|
if (pDrvData->sLine < 0) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to register serial driver\n");
|
|
goto cleanup_error;
|
|
}
|
|
/* uart is registered */
|
|
|
|
#if 0
|
|
/* sysfs */
|
|
memset(&mwave_device, 0, sizeof (struct device));
|
|
snprintf(mwave_device.bus_id, BUS_ID_SIZE, "mwave");
|
|
|
|
if (device_register(&mwave_device))
|
|
goto cleanup_error;
|
|
pDrvData->device_registered = TRUE;
|
|
for (i = 0; i < ARRAY_SIZE(mwave_dev_attrs); i++) {
|
|
if(device_create_file(&mwave_device, mwave_dev_attrs[i])) {
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd:mwave_init: Error:"
|
|
" Failed to create sysfs file %s\n",
|
|
mwave_dev_attrs[i]->attr.name);
|
|
goto cleanup_error;
|
|
}
|
|
pDrvData->nr_registered_attrs++;
|
|
}
|
|
#endif
|
|
|
|
/* SUCCESS! */
|
|
return 0;
|
|
|
|
cleanup_error:
|
|
PRINTK_ERROR(KERN_ERR_MWAVE
|
|
"mwavedd::mwave_init: Error:"
|
|
" Failed to initialize\n");
|
|
mwave_exit(); /* clean up */
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
module_init(mwave_init);
|
|
|
|
|