[deliverable/linux.git] / drivers / char / mwave / mwavedd.c

/*
*
* 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 <linux/serial_8250.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 uart_port uart;
	
	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(&uart, 0, sizeof(struct uart_port));
	
	uart.uartclk =  1843200;
	uart.iobase = port;
	uart.irq = irq;
	uart.iotype = UPIO_PORT;
	uart.flags =  UPF_SHARE_IRQ;
	return serial8250_register_port(&uart);
}


static const 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, struct device_attribute *attr, 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 ) {
		serial8250_unregister_port(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);
Commit	Line	Data
1da177e4 LT	1	/*
	2	*
	3	* mwavedd.c -- mwave device driver
	4	*
	5	*
	6	* Written By: Mike Sullivan IBM Corporation
	7	*
	8	* Copyright (C) 1999 IBM Corporation
	9	*
	10	* This program is free software; you can redistribute it and/or modify
	11	* it under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; either version 2 of the License, or
	13	* (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	* GNU General Public License for more details.
	19	*
	20	* NO WARRANTY
	21	* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
	22	* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
	23	* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
	24	* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
	25	* solely responsible for determining the appropriateness of using and
	26	* distributing the Program and assumes all risks associated with its
	27	* exercise of rights under this Agreement, including but not limited to
	28	* the risks and costs of program errors, damage to or loss of data,
	29	* programs or equipment, and unavailability or interruption of operations.
	30	*
	31	* DISCLAIMER OF LIABILITY
	32	* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
	33	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	34	* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
	35	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
	36	* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
	37	* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
	38	* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
	39	*
	40	* You should have received a copy of the GNU General Public License
	41	* along with this program; if not, write to the Free Software
	42	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	43	*
	44	*
	45	* 10/23/2000 - Alpha Release
	46	* First release to the public
	47	*/
	48
	49	#include <linux/module.h>
	50	#include <linux/kernel.h>
	51	#include <linux/fs.h>
	52	#include <linux/init.h>
	53	#include <linux/major.h>
	54	#include <linux/miscdevice.h>
	55	#include <linux/device.h>
	56	#include <linux/serial.h>
	57	#include <linux/sched.h>
	58	#include <linux/spinlock.h>
	59	#include <linux/delay.h>
5981d644	60	#include <linux/serial_8250.h>
1da177e4 LT	61	#include "smapi.h"
	62	#include "mwavedd.h"
	63	#include "3780i.h"
	64	#include "tp3780i.h"
	65
	66	MODULE_DESCRIPTION("3780i Advanced Communications Processor (Mwave) driver");
	67	MODULE_AUTHOR("Mike Sullivan and Paul Schroeder");
	68	MODULE_LICENSE("GPL");
	69
	70	/*
	71	* These parameters support the setting of MWave resources. Note that no
	72	* checks are made against other devices (ie. superio) for conflicts.
	73	* We'll depend on users using the tpctl utility to do that for now
	74	*/
	75	int mwave_debug = 0;
	76	int mwave_3780i_irq = 0;
	77	int mwave_3780i_io = 0;
	78	int mwave_uart_irq = 0;
	79	int mwave_uart_io = 0;
	80	module_param(mwave_debug, int, 0);
	81	module_param(mwave_3780i_irq, int, 0);
	82	module_param(mwave_3780i_io, int, 0);
	83	module_param(mwave_uart_irq, int, 0);
	84	module_param(mwave_uart_io, int, 0);
	85
	86	static int mwave_open(struct inode inode, struct file file);
	87	static int mwave_close(struct inode inode, struct file file);
	88	static int mwave_ioctl(struct inode inode, struct file filp,
	89	unsigned int iocmd, unsigned long ioarg);
	90
	91	MWAVE_DEVICE_DATA mwave_s_mdd;
	92
	93	static int mwave_open(struct inode inode, struct file file)
	94	{
	95	unsigned int retval = 0;
	96
	97	PRINTK_3(TRACE_MWAVE,
	98	"mwavedd::mwave_open, entry inode %p file %p\n",
	99	inode, file);
	100	PRINTK_2(TRACE_MWAVE,
	101	"mwavedd::mwave_open, exit return retval %x\n", retval);
	102
	103	return retval;
	104	}
	105
	106	static int mwave_close(struct inode inode, struct file file)
	107	{
	108	unsigned int retval = 0;
	109
	110	PRINTK_3(TRACE_MWAVE,
	111	"mwavedd::mwave_close, entry inode %p file %p\n",
	112	inode, file);
	113
	114	PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n",
	115	retval);
	116
	117	return retval;
	118	}
	119
	120	static int mwave_ioctl(struct inode inode, struct file file,
	121	unsigned int iocmd, unsigned long ioarg)
	122	{
	123	unsigned int retval = 0;
	124	pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
125	void __user arg = (void __user )ioarg;
126
127	PRINTK_5(TRACE_MWAVE,
128	"mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n",
129	inode, file, iocmd, (int) ioarg);
130
131	switch (iocmd) {
132
133	case IOCTL_MW_RESET:
134	PRINTK_1(TRACE_MWAVE,
135	"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
136	" calling tp3780I_ResetDSP\n");
137	retval = tp3780I_ResetDSP(&pDrvData->rBDData);
138	PRINTK_2(TRACE_MWAVE,
139	"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
140	" retval %x from tp3780I_ResetDSP\n",
141	retval);
142	break;
143
144	case IOCTL_MW_RUN:
145	PRINTK_1(TRACE_MWAVE,
146	"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
147	" calling tp3780I_StartDSP\n");
148	retval = tp3780I_StartDSP(&pDrvData->rBDData);
149	PRINTK_2(TRACE_MWAVE,
150	"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
151	" retval %x from tp3780I_StartDSP\n",
152	retval);
153	break;
154
155	case IOCTL_MW_DSP_ABILITIES: {
156	MW_ABILITIES rAbilities;
157
158	PRINTK_1(TRACE_MWAVE,
159	"mwavedd::mwave_ioctl,"
160	" IOCTL_MW_DSP_ABILITIES calling"
161	" tp3780I_QueryAbilities\n");
162	retval = tp3780I_QueryAbilities(&pDrvData->rBDData,
163	&rAbilities);
164	PRINTK_2(TRACE_MWAVE,
165	"mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
166	" retval %x from tp3780I_QueryAbilities\n",
167	retval);
168	if (retval == 0) {
169	if( copy_to_user(arg, &rAbilities,
170	sizeof(MW_ABILITIES)) )
171	return -EFAULT;
172	}
173	PRINTK_2(TRACE_MWAVE,
174	"mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
175	" exit retval %x\n",
176	retval);
177	}
178	break;
179
180	case IOCTL_MW_READ_DATA:
181	case IOCTL_MW_READCLEAR_DATA: {
182	MW_READWRITE rReadData;
183	unsigned short __user *pusBuffer = NULL;
184
185	if( copy_from_user(&rReadData, arg,
186	sizeof(MW_READWRITE)) )
187	return -EFAULT;
188	pusBuffer = (unsigned short __user *) (rReadData.pBuf);
189
190	PRINTK_4(TRACE_MWAVE,
191	"mwavedd::mwave_ioctl IOCTL_MW_READ_DATA,"
192	" size %lx, ioarg %lx pusBuffer %p\n",
193	rReadData.ulDataLength, ioarg, pusBuffer);
194	retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
195	iocmd,
196	pusBuffer,
197	rReadData.ulDataLength,
198	rReadData.usDspAddress);
199	}
200	break;
201
202	case IOCTL_MW_READ_INST: {
203	MW_READWRITE rReadData;
204	unsigned short __user *pusBuffer = NULL;
205
206	if( copy_from_user(&rReadData, arg,
207	sizeof(MW_READWRITE)) )
208	return -EFAULT;
209	pusBuffer = (unsigned short __user *) (rReadData.pBuf);
210
211	PRINTK_4(TRACE_MWAVE,
212	"mwavedd::mwave_ioctl IOCTL_MW_READ_INST,"
213	" size %lx, ioarg %lx pusBuffer %p\n",
214	rReadData.ulDataLength / 2, ioarg,
215	pusBuffer);
216	retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
217	iocmd, pusBuffer,
218	rReadData.ulDataLength / 2,
219	rReadData.usDspAddress);
220	}
221	break;
222
223	case IOCTL_MW_WRITE_DATA: {
224	MW_READWRITE rWriteData;
225	unsigned short __user *pusBuffer = NULL;
226
227	if( copy_from_user(&rWriteData, arg,
228	sizeof(MW_READWRITE)) )
229	return -EFAULT;
230	pusBuffer = (unsigned short __user *) (rWriteData.pBuf);
231
232	PRINTK_4(TRACE_MWAVE,
233	"mwavedd::mwave_ioctl IOCTL_MW_WRITE_DATA,"
234	" size %lx, ioarg %lx pusBuffer %p\n",
235	rWriteData.ulDataLength, ioarg,
236	pusBuffer);
237	retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
238	iocmd, pusBuffer,
239	rWriteData.ulDataLength,
240	rWriteData.usDspAddress);
241	}
242	break;
243
244	case IOCTL_MW_WRITE_INST: {
245	MW_READWRITE rWriteData;
246	unsigned short __user *pusBuffer = NULL;
247
248	if( copy_from_user(&rWriteData, arg,
249	sizeof(MW_READWRITE)) )
250	return -EFAULT;
251	pusBuffer = (unsigned short __user *)(rWriteData.pBuf);
252
253	PRINTK_4(TRACE_MWAVE,
254	"mwavedd::mwave_ioctl IOCTL_MW_WRITE_INST,"
255	" size %lx, ioarg %lx pusBuffer %p\n",
256	rWriteData.ulDataLength, ioarg,
257	pusBuffer);
258	retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData,
259	iocmd, pusBuffer,
260	rWriteData.ulDataLength,
261	rWriteData.usDspAddress);
262	}
263	break;
264
265	case IOCTL_MW_REGISTER_IPC: {
266	unsigned int ipcnum = (unsigned int) ioarg;
267
268	PRINTK_3(TRACE_MWAVE,
269	"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
270	" ipcnum %x entry usIntCount %x\n",
271	ipcnum,
272	pDrvData->IPCs[ipcnum].usIntCount);
273
d698f1c7	274	if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) {
1da177e4 LT	275	PRINTK_ERROR(KERN_ERR_MWAVE
	276	"mwavedd::mwave_ioctl:"
	277	" IOCTL_MW_REGISTER_IPC:"
	278	" Error: Invalid ipcnum %x\n",
	279	ipcnum);
	280	return -EINVAL;
	281	}
	282	pDrvData->IPCs[ipcnum].bIsHere = FALSE;
	283	pDrvData->IPCs[ipcnum].bIsEnabled = TRUE;
	284
	285	PRINTK_2(TRACE_MWAVE,
	286	"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
	287	" ipcnum %x exit\n",
	288	ipcnum);
	289	}
	290	break;
	291
	292	case IOCTL_MW_GET_IPC: {
	293	unsigned int ipcnum = (unsigned int) ioarg;
	294
	295	PRINTK_3(TRACE_MWAVE,
	296	"mwavedd::mwave_ioctl IOCTL_MW_GET_IPC"
	297	" ipcnum %x, usIntCount %x\n",
	298	ipcnum,
	299	pDrvData->IPCs[ipcnum].usIntCount);
	300	if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
	301	PRINTK_ERROR(KERN_ERR_MWAVE
	302	"mwavedd::mwave_ioctl:"
	303	" IOCTL_MW_GET_IPC: Error:"
	304	" Invalid ipcnum %x\n", ipcnum);
	305	return -EINVAL;
	306	}
	307
	308	if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
	309	DECLARE_WAITQUEUE(wait, current);
	310
	311	PRINTK_2(TRACE_MWAVE,
	312	"mwavedd::mwave_ioctl, thread for"
	313	" ipc %x going to sleep\n",
	314	ipcnum);
	315	add_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
	316	pDrvData->IPCs[ipcnum].bIsHere = TRUE;
	317	set_current_state(TASK_INTERRUPTIBLE);
	318	/* check whether an event was signalled by */
	319	/* the interrupt handler while we were gone */
	320	if (pDrvData->IPCs[ipcnum].usIntCount == 1) { /* first int has occurred (race condition) */
	321	pDrvData->IPCs[ipcnum].usIntCount = 2; /* first int has been handled */
	322	PRINTK_2(TRACE_MWAVE,
	323	"mwavedd::mwave_ioctl"
	324	" IOCTL_MW_GET_IPC ipcnum %x"
	325	" handling first int\n",
	326	ipcnum);
	327	} else { /* either 1st int has not yet occurred, or we have already handled the first int */
	328	schedule();
	329	if (pDrvData->IPCs[ipcnum].usIntCount == 1) {
	330	pDrvData->IPCs[ipcnum].usIntCount = 2;
	331	}
	332	PRINTK_2(TRACE_MWAVE,
	333	"mwavedd::mwave_ioctl"
	334	" IOCTL_MW_GET_IPC ipcnum %x"
	335	" woke up and returning to"
	336	" application\n",
	337	ipcnum);
	338	}
339	pDrvData->IPCs[ipcnum].bIsHere = FALSE;
340	remove_wait_queue(&pDrvData->IPCs[ipcnum].ipc_wait_queue, &wait);
341	set_current_state(TASK_RUNNING);
342	PRINTK_2(TRACE_MWAVE,
343	"mwavedd::mwave_ioctl IOCTL_MW_GET_IPC,"
344	" returning thread for ipc %x"
345	" processing\n",
346	ipcnum);
347	}
348	}
349	break;
350
351	case IOCTL_MW_UNREGISTER_IPC: {
352	unsigned int ipcnum = (unsigned int) ioarg;
353
354	PRINTK_2(TRACE_MWAVE,
355	"mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC"
356	" ipcnum %x\n",
357	ipcnum);
358	if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
359	PRINTK_ERROR(KERN_ERR_MWAVE
360	"mwavedd::mwave_ioctl:"
361	" IOCTL_MW_UNREGISTER_IPC:"
362	" Error: Invalid ipcnum %x\n",
363	ipcnum);
364	return -EINVAL;
365	}
366	if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
367	pDrvData->IPCs[ipcnum].bIsEnabled = FALSE;
368	if (pDrvData->IPCs[ipcnum].bIsHere == TRUE) {
369	wake_up_interruptible(&pDrvData->IPCs[ipcnum].ipc_wait_queue);
370	}
371	}
372	}
373	break;
374
375	default:
376	PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:"
377	" Error: Unrecognized iocmd %x\n",
378	iocmd);
379	return -ENOTTY;
380	break;
381	} /* switch */
382
383	PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_ioctl, exit retval %x\n", retval);
384
385	return retval;
386	}
387
388
389	static ssize_t mwave_read(struct file file, char __user buf, size_t count,
390	loff_t * ppos)
391	{
392	PRINTK_5(TRACE_MWAVE,
393	"mwavedd::mwave_read entry file %p, buf %p, count %zx ppos %p\n",
394	file, buf, count, ppos);
395
396	return -EINVAL;
397	}
398
399
400	static ssize_t mwave_write(struct file file, const char __user buf,
401	size_t count, loff_t * ppos)
402	{
403	PRINTK_5(TRACE_MWAVE,
404	"mwavedd::mwave_write entry file %p, buf %p,"
405	" count %zx ppos %p\n",
406	file, buf, count, ppos);
407
408	return -EINVAL;
409	}
410
411
412	static int register_serial_portandirq(unsigned int port, int irq)
413	{
5981d644 AC	414	struct uart_port uart;
5981d644 AC	415
1da177e4 LT	416	switch ( port ) {
	417	case 0x3f8:
	418	case 0x2f8:
	419	case 0x3e8:
	420	case 0x2e8:
	421	/* OK */
	422	break;
	423	default:
	424	PRINTK_ERROR(KERN_ERR_MWAVE
	425	"mwavedd::register_serial_portandirq:"
	426	" Error: Illegal port %x\n", port );
	427	return -1;
	428	} /* switch */
	429	/* port is okay */
	430
	431	switch ( irq ) {
	432	case 3:
	433	case 4:
	434	case 5:
	435	case 7:
	436	/* OK */
	437	break;
	438	default:
	439	PRINTK_ERROR(KERN_ERR_MWAVE
	440	"mwavedd::register_serial_portandirq:"
	441	" Error: Illegal irq %x\n", irq );
	442	return -1;
	443	} /* switch */
	444	/* irq is okay */
	445
5981d644 AC	446	memset(&uart, 0, sizeof(struct uart_port));
	447
	448	uart.uartclk = 1843200;
	449	uart.iobase = port;
	450	uart.irq = irq;
	451	uart.iotype = UPIO_PORT;
	452	uart.flags = UPF_SHARE_IRQ;
	453	return serial8250_register_port(&uart);
1da177e4 LT	454	}
	455
	456
62322d25	457	static const struct file_operations mwave_fops = {
1da177e4 LT	458	.owner = THIS_MODULE,
	459	.read = mwave_read,
	460	.write = mwave_write,
	461	.ioctl = mwave_ioctl,
	462	.open = mwave_open,
	463	.release = mwave_close
	464	};
	465
	466
	467	static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops };
	468
	469	#if 0 /* totally b0rked */
	470	/*
	471	* sysfs support <paulsch@us.ibm.com>
	472	*/
	473
	474	struct device mwave_device;
	475
	476	/* Prevent code redundancy, create a macro for mwave_show_* functions. */
	477	#define mwave_show_function(attr_name, format_string, field) \
74880c06	478	static ssize_t mwave_show_##attr_name(struct device dev, struct device_attribute attr, char *buf) \
1da177e4 LT	479	{ \
	480	DSP_3780I_CONFIG_SETTINGS *pSettings = \
	481	&mwave_s_mdd.rBDData.rDspSettings; \
	482	return sprintf(buf, format_string, pSettings->field); \
	483	}
	484
	485	/* All of our attributes are read attributes. */
	486	#define mwave_dev_rd_attr(attr_name, format_string, field) \
	487	mwave_show_function(attr_name, format_string, field) \
	488	static DEVICE_ATTR(attr_name, S_IRUGO, mwave_show_##attr_name, NULL)
	489
	490	mwave_dev_rd_attr (3780i_dma, "%i\n", usDspDma);
	491	mwave_dev_rd_attr (3780i_irq, "%i\n", usDspIrq);
	492	mwave_dev_rd_attr (3780i_io, "%#.4x\n", usDspBaseIO);
	493	mwave_dev_rd_attr (uart_irq, "%i\n", usUartIrq);
	494	mwave_dev_rd_attr (uart_io, "%#.4x\n", usUartBaseIO);
	495
	496	static struct device_attribute * const mwave_dev_attrs[] = {
	497	&dev_attr_3780i_dma,
	498	&dev_attr_3780i_irq,
	499	&dev_attr_3780i_io,
	500	&dev_attr_uart_irq,
	501	&dev_attr_uart_io,
	502	};
	503	#endif
	504
	505	/*
	506	* mwave_init is called on module load
	507	*
	508	* mwave_exit is called on module unload
	509	* mwave_exit is also used to clean up after an aborted mwave_init
	510	*/
	511	static void mwave_exit(void)
	512	{
	513	pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
	514
	515	PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n");
	516
	517	#if 0
	518	for (i = 0; i < pDrvData->nr_registered_attrs; i++)
	519	device_remove_file(&mwave_device, mwave_dev_attrs[i]);
	520	pDrvData->nr_registered_attrs = 0;
	521
	522	if (pDrvData->device_registered) {
	523	device_unregister(&mwave_device);
	524	pDrvData->device_registered = FALSE;
	525	}
	526	#endif
	527
	528	if ( pDrvData->sLine >= 0 ) {
5981d644	529	serial8250_unregister_port(pDrvData->sLine);
1da177e4 LT	530	}
	531	if (pDrvData->bMwaveDevRegistered) {
	532	misc_deregister(&mwave_misc_dev);
	533	}
	534	if (pDrvData->bDSPEnabled) {
	535	tp3780I_DisableDSP(&pDrvData->rBDData);
	536	}
	537	if (pDrvData->bResourcesClaimed) {
	538	tp3780I_ReleaseResources(&pDrvData->rBDData);
	539	}
	540	if (pDrvData->bBDInitialized) {
	541	tp3780I_Cleanup(&pDrvData->rBDData);
	542	}
	543
	544	PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit exit\n");
	545	}
	546
	547	module_exit(mwave_exit);
	548
	549	static int __init mwave_init(void)
	550	{
	551	int i;
	552	int retval = 0;
	553	pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
	554
	555	PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n");
	556
	557	memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA));
	558
	559	pDrvData->bBDInitialized = FALSE;
	560	pDrvData->bResourcesClaimed = FALSE;
	561	pDrvData->bDSPEnabled = FALSE;
	562	pDrvData->bDSPReset = FALSE;
	563	pDrvData->bMwaveDevRegistered = FALSE;
	564	pDrvData->sLine = -1;
	565
	566	for (i = 0; i < ARRAY_SIZE(pDrvData->IPCs); i++) {
	567	pDrvData->IPCs[i].bIsEnabled = FALSE;
	568	pDrvData->IPCs[i].bIsHere = FALSE;
	569	pDrvData->IPCs[i].usIntCount = 0; /* no ints received yet */
	570	init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue);
	571	}
	572
	573	retval = tp3780I_InitializeBoardData(&pDrvData->rBDData);
	574	PRINTK_2(TRACE_MWAVE,
	575	"mwavedd::mwave_init, return from tp3780I_InitializeBoardData"
	576	" retval %x\n",
	577	retval);
	578	if (retval) {
	579	PRINTK_ERROR(KERN_ERR_MWAVE
	580	"mwavedd::mwave_init: Error:"
	581	" Failed to initialize board data\n");
	582	goto cleanup_error;
	583	}
	584	pDrvData->bBDInitialized = TRUE;
	585
	586	retval = tp3780I_CalcResources(&pDrvData->rBDData);
	587	PRINTK_2(TRACE_MWAVE,
	588	"mwavedd::mwave_init, return from tp3780I_CalcResources"
	589	" retval %x\n",
	590	retval);
	591	if (retval) {
	592	PRINTK_ERROR(KERN_ERR_MWAVE
	593	"mwavedd:mwave_init: Error:"
594	" Failed to calculate resources\n");
595	goto cleanup_error;
596	}
597
598	retval = tp3780I_ClaimResources(&pDrvData->rBDData);
599	PRINTK_2(TRACE_MWAVE,
600	"mwavedd::mwave_init, return from tp3780I_ClaimResources"
601	" retval %x\n",
602	retval);
603	if (retval) {
604	PRINTK_ERROR(KERN_ERR_MWAVE
605	"mwavedd:mwave_init: Error:"
606	" Failed to claim resources\n");
607	goto cleanup_error;
608	}
609	pDrvData->bResourcesClaimed = TRUE;
610
611	retval = tp3780I_EnableDSP(&pDrvData->rBDData);
612	PRINTK_2(TRACE_MWAVE,
613	"mwavedd::mwave_init, return from tp3780I_EnableDSP"
614	" retval %x\n",
615	retval);
616	if (retval) {
617	PRINTK_ERROR(KERN_ERR_MWAVE
618	"mwavedd:mwave_init: Error:"
619	" Failed to enable DSP\n");
620	goto cleanup_error;
621	}
622	pDrvData->bDSPEnabled = TRUE;
623
624	if (misc_register(&mwave_misc_dev) < 0) {
625	PRINTK_ERROR(KERN_ERR_MWAVE
626	"mwavedd:mwave_init: Error:"
627	" Failed to register misc device\n");
628	goto cleanup_error;
629	}
630	pDrvData->bMwaveDevRegistered = TRUE;
631
632	pDrvData->sLine = register_serial_portandirq(
633	pDrvData->rBDData.rDspSettings.usUartBaseIO,
634	pDrvData->rBDData.rDspSettings.usUartIrq
635	);
636	if (pDrvData->sLine < 0) {
637	PRINTK_ERROR(KERN_ERR_MWAVE
638	"mwavedd:mwave_init: Error:"
639	" Failed to register serial driver\n");
640	goto cleanup_error;
641	}
642	/* uart is registered */
643
644	#if 0
645	/* sysfs */
646	memset(&mwave_device, 0, sizeof (struct device));
647	snprintf(mwave_device.bus_id, BUS_ID_SIZE, "mwave");
648
649	if (device_register(&mwave_device))
650	goto cleanup_error;
651	pDrvData->device_registered = TRUE;
652	for (i = 0; i < ARRAY_SIZE(mwave_dev_attrs); i++) {
653	if(device_create_file(&mwave_device, mwave_dev_attrs[i])) {
654	PRINTK_ERROR(KERN_ERR_MWAVE
655	"mwavedd:mwave_init: Error:"
656	" Failed to create sysfs file %s\n",
657	mwave_dev_attrs[i]->attr.name);
658	goto cleanup_error;
659	}
660	pDrvData->nr_registered_attrs++;
661	}
662	#endif
663
664	/* SUCCESS! */
665	return 0;
666
667	cleanup_error:
668	PRINTK_ERROR(KERN_ERR_MWAVE
669	"mwavedd::mwave_init: Error:"
670	" Failed to initialize\n");
671	mwave_exit(); /* clean up */
672
673	return -EIO;
674	}
675
676	module_init(mwave_init);
677