diff options
Diffstat (limited to 'drivers/char/mwave/mwavedd.c')
| -rw-r--r-- | drivers/char/mwave/mwavedd.c | 674 |
1 files changed, 674 insertions, 0 deletions
diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c new file mode 100644 index 000000000000..d37625d47746 --- /dev/null +++ b/drivers/char/mwave/mwavedd.c @@ -0,0 +1,674 @@ +/* +* +* mwavedd.c -- mwave device driver +* +* +* Written By: Mike Sullivan IBM Corporation +* +* Copyright (C) 1999 IBM Corporation +* +* This program 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. +* +* NO WARRANTY +* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR +* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT +* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, +* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is +* solely responsible for determining the appropriateness of using and +* distributing the Program and assumes all risks associated with its +* exercise of rights under this Agreement, including but not limited to +* the risks and costs of program errors, damage to or loss of data, +* programs or equipment, and unavailability or interruption of operations. +* +* DISCLAIMER OF LIABILITY +* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY +* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND +* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR +* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE +* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED +* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES +* +* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +* +* +* 10/23/2000 - Alpha Release +* First release to the public +*/ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/major.h> +#include <linux/miscdevice.h> +#include <linux/device.h> +#include <linux/serial.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include "smapi.h" +#include "mwavedd.h" +#include "3780i.h" +#include "tp3780i.h" + +MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver"); +MODULE_AUTHOR("Mike Sullivan and Paul Schroeder"); +MODULE_LICENSE("GPL"); + +/* +* These parameters support the setting of MWave resources. Note that no +* checks are made against other devices (ie. superio) for conflicts. +* We'll depend on users using the tpctl utility to do that for now +*/ +int mwave_debug = 0; +int mwave_3780i_irq = 0; +int mwave_3780i_io = 0; +int mwave_uart_irq = 0; +int mwave_uart_io = 0; +module_param(mwave_debug, int, 0); +module_param(mwave_3780i_irq, int, 0); +module_param(mwave_3780i_io, int, 0); +module_param(mwave_uart_irq, int, 0); +module_param(mwave_uart_io, int, 0); + +static int mwave_open(struct inode *inode, struct file *file); +static int mwave_close(struct inode *inode, struct file *file); +static int mwave_ioctl(struct inode *inode, struct file *filp, + unsigned int iocmd, unsigned long ioarg); + +MWAVE_DEVICE_DATA mwave_s_mdd; + +static int mwave_open(struct inode *inode, struct file *file) +{ + unsigned int retval = 0; + + PRINTK_3(TRACE_MWAVE, + "mwavedd::mwave_open, entry inode %p file %p\n", + inode, file); + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_open, exit return retval %x\n", retval); + + return retval; +} + +static int mwave_close(struct inode *inode, struct file *file) +{ + unsigned int retval = 0; + + PRINTK_3(TRACE_MWAVE, + "mwavedd::mwave_close, entry inode %p file %p\n", + inode, file); + + PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n", + retval); + + return retval; +} + +static int mwave_ioctl(struct inode *inode, struct file *file, + unsigned int iocmd, unsigned long ioarg) +{ + unsigned int retval = 0; + pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd; + void __user *arg = (void __user *)ioarg; + + PRINTK_5(TRACE_MWAVE, + "mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n", + inode, file, iocmd, (int) ioarg); + + switch (iocmd) { + + case IOCTL_MW_RESET: + PRINTK_1(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_RESET" + " calling tp3780I_ResetDSP\n"); + retval = tp3780I_ResetDSP(&pDrvData->rBDData); + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_RESET" + " retval %x from tp3780I_ResetDSP\n", + retval); + break; + + case IOCTL_MW_RUN: + PRINTK_1(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_RUN" + " calling tp3780I_StartDSP\n"); + retval = tp3780I_StartDSP(&pDrvData->rBDData); + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_RUN" + " retval %x from tp3780I_StartDSP\n", + retval); + break; + + case IOCTL_MW_DSP_ABILITIES: { + MW_ABILITIES rAbilities; + + PRINTK_1(TRACE_MWAVE, + "mwavedd::mwave_ioctl," + " IOCTL_MW_DSP_ABILITIES calling" + " tp3780I_QueryAbilities\n"); + retval = tp3780I_QueryAbilities(&pDrvData->rBDData, + &rAbilities); + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" + " retval %x from tp3780I_QueryAbilities\n", + retval); + if (retval == 0) { + if( copy_to_user(arg, &rAbilities, + sizeof(MW_ABILITIES)) ) + return -EFAULT; + } + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES" + " exit retval %x\n", + retval); + } + break; + + case IOCTL_MW_READ_DATA: + case IOCTL_MW_READCLEAR_DATA: { + MW_READWRITE rReadData; + unsigned short __user *pusBuffer = NULL; + + if( copy_from_user(&rReadData, arg, + sizeof(MW_READWRITE)) ) + return -EFAULT; + pusBuffer = (unsigned short __user *) (rReadData.pBuf); + + PRINTK_4(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_READ_DATA," + " size %lx, ioarg %lx pusBuffer %p\n", + rReadData.ulDataLength, ioarg, pusBuffer); + retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, + iocmd, + pusBuffer, + rReadData.ulDataLength, + rReadData.usDspAddress); + } + break; + + case IOCTL_MW_READ_INST: { + MW_READWRITE rReadData; + unsigned short __user *pusBuffer = NULL; + + if( copy_from_user(&rReadData, arg, + sizeof(MW_READWRITE)) ) + return -EFAULT; + pusBuffer = (unsigned short __user *) (rReadData.pBuf); + + PRINTK_4(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_READ_INST," + " size %lx, ioarg %lx pusBuffer %p\n", + rReadData.ulDataLength / 2, ioarg, + pusBuffer); + retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, + iocmd, pusBuffer, + rReadData.ulDataLength / 2, + rReadData.usDspAddress); + } + break; + + case IOCTL_MW_WRITE_DATA: { + MW_READWRITE rWriteData; + unsigned short __user *pusBuffer = NULL; + + if( copy_from_user(&rWriteData, arg, + sizeof(MW_READWRITE)) ) + return -EFAULT; + pusBuffer = (unsigned short __user *) (rWriteData.pBuf); + + PRINTK_4(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA," + " size %lx, ioarg %lx pusBuffer %p\n", + rWriteData.ulDataLength, ioarg, + pusBuffer); + retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData, + iocmd, pusBuffer, + rWriteData.ulDataLength, + rWriteData.usDspAddress); + } + break; + + case IOCTL_MW_WRITE_INST: { + MW_READWRITE rWriteData; + unsigned short __user *pusBuffer = NULL; + + if( copy_from_user(&rWriteData, arg, + sizeof(MW_READWRITE)) ) + return -EFAULT; + pusBuffer = (unsigned short __user *)(rWriteData.pBuf); + + PRINTK_4(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST," + " size %lx, ioarg %lx pusBuffer %p\n", + rWriteData.ulDataLength, ioarg, + pusBuffer); + retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData, + iocmd, pusBuffer, + rWriteData.ulDataLength, + rWriteData.usDspAddress); + } + break; + + case IOCTL_MW_REGISTER_IPC: { + unsigned int ipcnum = (unsigned int) ioarg; + + PRINTK_3(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" + " ipcnum %x entry usIntCount %x\n", + ipcnum, + pDrvData->IPCs[ipcnum].usIntCount); + + if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) { + PRINTK_ERROR(KERN_ERR_MWAVE + "mwavedd::mwave_ioctl:" + " IOCTL_MW_REGISTER_IPC:" + " Error: Invalid ipcnum %x\n", + ipcnum); + return -EINVAL; + } + pDrvData->IPCs[ipcnum].bIsHere = FALSE; + pDrvData->IPCs[ipcnum].bIsEnabled = TRUE; + + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC" + " ipcnum %x exit\n", + ipcnum); + } + break; + + case IOCTL_MW_GET_IPC: { + unsigned int ipcnum = (unsigned int) ioarg; + + PRINTK_3(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC" + " ipcnum %x, usIntCount %x\n", + ipcnum, + pDrvData->IPCs[ipcnum].usIntCount); + if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) { + PRINTK_ERROR(KERN_ERR_MWAVE + "mwavedd::mwave_ioctl:" + " IOCTL_MW_GET_IPC: Error:" + " Invalid ipcnum %x\n", ipcnum); + return -EINVAL; + } + + if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { + DECLARE_WAITQUEUE(wait, current); + + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl, thread for" + " ipc %x going to sleep\n", + ipcnum); + add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); + pDrvData->IPCs[ipcnum].bIsHere = TRUE; + set_current_state(TASK_INTERRUPTIBLE); + /* check whether an event was signalled by */ + /* the interrupt handler while we were gone */ + if (pDrvData->IPCs[ipcnum].usIntCount == 1) { /* first int has occurred (race condition) */ + pDrvData->IPCs[ipcnum].usIntCount = 2; /* first int has been handled */ + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl" + " IOCTL_MW_GET_IPC ipcnum %x" + " handling first int\n", + ipcnum); + } else { /* either 1st int has not yet occurred, or we have already handled the first int */ + schedule(); + if (pDrvData->IPCs[ipcnum].usIntCount == 1) { + pDrvData->IPCs[ipcnum].usIntCount = 2; + } + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl" + " IOCTL_MW_GET_IPC ipcnum %x" + " woke up and returning to" + " application\n", + ipcnum); + } + pDrvData->IPCs[ipcnum].bIsHere = FALSE; + remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait); + set_current_state(TASK_RUNNING); + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC," + " returning thread for ipc %x" + " processing\n", + ipcnum); + } + } + break; + + case IOCTL_MW_UNREGISTER_IPC: { + unsigned int ipcnum = (unsigned int) ioarg; + + PRINTK_2(TRACE_MWAVE, + "mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC" + " ipcnum %x\n", + ipcnum); + if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) { + PRINTK_ERROR(KERN_ERR_MWAVE + "mwavedd::mwave_ioctl:" + " IOCTL_MW_UNREGISTER_IPC:" + " Error: Invalid ipcnum %x\n", + ipcnum); + return -EINVAL; + } + if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) { + pDrvData->IPCs[ipcnum].bIsEnabled = FALSE; + if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) { + wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue); + } + } + } + break; + + default: + PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:" + " Error: Unrecognized iocmd %x\n", + iocmd); + return -ENOTTY; + break; + } /* switch */ + + PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval); + + return retval; +} + + +static ssize_t mwave_read(struct file *file, char __user *buf, size_t count, + loff_t * ppos) +{ + PRINTK_5(TRACE_MWAVE, + "mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n", + file, buf, count, ppos); + + return -EINVAL; +} + + +static ssize_t mwave_write(struct file *file, const char __user *buf, + size_t count, loff_t * ppos) +{ + PRINTK_5(TRACE_MWAVE, + "mwavedd::mwave_write entry file %p, buf %p," + " count %zx ppos %p\n", + file, buf, count, ppos); + + return -EINVAL; +} + + +static int register_serial_portandirq(unsigned int port, int irq) +{ + struct serial_struct serial; + + switch ( port ) { + case 0x3f8: + case 0x2f8: + case 0x3e8: + case 0x2e8: + /* OK */ + break; + default: + PRINTK_ERROR(KERN_ERR_MWAVE + "mwavedd::register_serial_portandirq:" + " Error: Illegal port %x\n", port ); + return -1; + } /* switch */ + /* port is okay */ + + switch ( irq ) { + case 3: + case 4: + case 5: + case 7: + /* OK */ + break; + default: + PRINTK_ERROR(KERN_ERR_MWAVE + "mwavedd::register_serial_portandirq:" + " Error: Illegal irq %x\n", irq ); + return -1; + } /* switch */ + /* irq is okay */ + + memset(&serial, 0, sizeof(serial)); + serial.port = port; + serial.irq = irq; + serial.flags = ASYNC_SHARE_IRQ; + + return register_serial(&serial); +} + + +static struct file_operations mwave_fops = { + .owner = THIS_MODULE, + .read = mwave_read, + .write = mwave_write, + .ioctl = mwave_ioctl, + .open = mwave_open, + .release = mwave_close +}; + + +static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops }; + +#if 0 /* totally b0rked */ +/* + * sysfs support <paulsch@us.ibm.com> + */ + +struct device mwave_device; + +/* Prevent code redundancy, create a macro for mwave_show_* functions. */ +#define mwave_show_function(attr_name, format_string, field) \ +static ssize_t mwave_show_##attr_name(struct device *dev, char *buf) \ +{ \ + DSP_3780I_CONFIG_SETTINGS *pSettings = \ + &mwave_s_mdd.rBDData.rDspSettings; \ + return sprintf(buf, format_string, pSettings->field); \ +} + +/* All of our attributes are read attributes. */ +#define mwave_dev_rd_attr(attr_name, format_string, field) \ + mwave_show_function(attr_name, format_string, field) \ +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); + |