patch-2.4.11-dontuse linux/drivers/char/mwave/mwavedd.c
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- Lines: 639
- Date:
Sun Sep 30 12:26:05 2001
- Orig file:
v2.4.10/linux/drivers/char/mwave/mwavedd.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.10/linux/drivers/char/mwave/mwavedd.c linux/drivers/char/mwave/mwavedd.c
@@ -0,0 +1,638 @@
+/*
+*
+* 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/version.h>
+#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/proc_fs.h>
+#include <linux/serial.h>
+#include <linux/sched.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+#include <linux/spinlock.h>
+#else
+#include <asm/spinlock.h>
+#endif
+#include <linux/delay.h>
+#include "smapi.h"
+#include "mwavedd.h"
+#include "3780i.h"
+#include "tp3780i.h"
+
+#ifndef __exit
+#define __exit
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+static int mwave_get_info(char *buf, char **start, off_t offset, int len);
+#else
+static int mwave_read_proc(char *buf, char **start, off_t offset, int xlen, int unused);
+static struct proc_dir_entry mwave_proc = {
+ 0, /* unsigned short low_ino */
+ 5, /* unsigned short namelen */
+ "mwave", /* const char *name */
+ S_IFREG | S_IRUGO, /* mode_t mode */
+ 1, /* nlink_t nlink */
+ 0, /* uid_t uid */
+ 0, /* gid_t gid */
+ 0, /* unsigned long size */
+ NULL, /* struct inode_operations *ops */
+ &mwave_read_proc /* int (*get_info) (...) */
+};
+#endif
+
+/*
+* 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_PARM(mwave_debug, "i");
+MODULE_PARM(mwave_3780i_irq, "i");
+MODULE_PARM(mwave_3780i_io, "i");
+MODULE_PARM(mwave_uart_irq, "i");
+MODULE_PARM(mwave_uart_io, "i");
+
+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 %x file %x\n",
+ (int) inode, (int) file);
+ PRINTK_2(TRACE_MWAVE,
+ "mwavedd::mwave_open, exit return retval %x\n", retval);
+
+ MOD_INC_USE_COUNT;
+ 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 %x file %x\n",
+ (int) inode, (int) file);
+
+ PRINTK_2(TRACE_MWAVE, "mwavedd::mwave_close, exit retval %x\n",
+ retval);
+
+ MOD_DEC_USE_COUNT;
+ 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;
+
+ PRINTK_5(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl, entry inode %x file %x cmd %x arg %x\n",
+ (int) inode, (int) 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((char *) ioarg, (char *) &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 *pusBuffer = 0;
+
+ if( copy_from_user((char *) &rReadData, (char *) ioarg, sizeof(MW_READWRITE)) )
+ return -EFAULT;
+ pusBuffer = (unsigned short *) (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,
+ (void *) pusBuffer, rReadData.ulDataLength, rReadData.usDspAddress);
+ }
+ break;
+
+ case IOCTL_MW_READ_INST: {
+ MW_READWRITE rReadData;
+ unsigned short *pusBuffer = 0;
+
+ if( copy_from_user((char *) &rReadData, (char *) ioarg, sizeof(MW_READWRITE)) )
+ return -EFAULT;
+ pusBuffer = (unsigned short *) (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 *pusBuffer = 0;
+
+ if( copy_from_user((char *) &rWriteData, (char *) ioarg, sizeof(MW_READWRITE)) )
+ return -EFAULT;
+ pusBuffer = (unsigned short *) (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 *pusBuffer = 0;
+
+ if( copy_from_user((char *) &rWriteData, (char *) ioarg, sizeof(MW_READWRITE)) )
+ return -EFAULT;
+ pusBuffer = (unsigned short *) (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 > 16) {
+ 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;
+ #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ current->nice = -20; /* boost to provide priority timing */
+ #else
+ current->priority = 0x28; /* boost to provide priority timing */
+ #endif
+
+ 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;
+ spinlock_t ipc_lock = SPIN_LOCK_UNLOCKED;
+ unsigned long flags;
+
+ PRINTK_3(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC ipcnum %x, usIntCount %x\n",
+ ipcnum,
+ pDrvData->IPCs[ipcnum].usIntCount);
+ if (ipcnum > 16) {
+ 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) {
+ PRINTK_2(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl, thread for ipc %x going to sleep\n",
+ ipcnum);
+
+ spin_lock_irqsave(&ipc_lock, flags);
+ /* 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 */
+ spin_unlock_irqrestore(&ipc_lock, flags);
+ 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 */
+ pDrvData->IPCs[ipcnum].bIsHere = TRUE;
+ interruptible_sleep_on(&pDrvData->IPCs[ipcnum].ipc_wait_queue);
+ pDrvData->IPCs[ipcnum].bIsHere = FALSE;
+ if (pDrvData->IPCs[ipcnum].usIntCount == 1) {
+ pDrvData->IPCs[ipcnum].
+ usIntCount = 2;
+ }
+ spin_unlock_irqrestore(&ipc_lock, flags);
+ PRINTK_2(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl IOCTL_MW_GET_IPC ipcnum %x woke up and returning to application\n",
+ ipcnum);
+ }
+ 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 > 16) {
+ 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 *buf, size_t count,
+ loff_t * ppos)
+{
+ PRINTK_5(TRACE_MWAVE,
+ "mwavedd::mwave_read entry file %p, buf %p, count %x ppos %p\n",
+ file, buf, count, ppos);
+
+ return -EINVAL;
+}
+
+
+static ssize_t mwave_write(struct file *file, const char *buf,
+ size_t count, loff_t * ppos)
+{
+ PRINTK_5(TRACE_MWAVE,
+ "mwavedd::mwave_write entry file %p, buf %p, count %x 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);
+}
+
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+static struct file_operations mwave_fops = {
+ owner:THIS_MODULE,
+ read:mwave_read,
+ write:mwave_write,
+ ioctl:mwave_ioctl,
+ open:mwave_open,
+ release:mwave_close
+};
+#else
+static struct file_operations mwave_fops = {
+ NULL, /* lseek */
+ mwave_read, /* read */
+ mwave_write, /* write */
+ NULL, /* readdir */
+ NULL, /* poll */
+ mwave_ioctl, /* ioctl */
+ NULL, /* mmap */
+ mwave_open, /* open */
+ NULL, /* flush */
+ mwave_close /* release */
+};
+#endif
+
+static struct miscdevice mwave_misc_dev = { MWAVE_MINOR, "mwave", &mwave_fops };
+
+/*
+* 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 __exit mwave_exit(void)
+{
+ pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
+
+ PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_exit entry\n");
+
+ if (pDrvData->bProcEntryCreated) {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ remove_proc_entry("mwave", NULL);
+#else
+ proc_unregister(&proc_root, mwave_proc.low_ino);
+#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;
+ unsigned int resultMiscRegister;
+ pMWAVE_DEVICE_DATA pDrvData = &mwave_s_mdd;
+
+ memset(&mwave_s_mdd, 0, sizeof(MWAVE_DEVICE_DATA));
+
+ PRINTK_1(TRACE_MWAVE, "mwavedd::mwave_init entry\n");
+
+ pDrvData->bBDInitialized = FALSE;
+ pDrvData->bResourcesClaimed = FALSE;
+ pDrvData->bDSPEnabled = FALSE;
+ pDrvData->bDSPReset = FALSE;
+ pDrvData->bMwaveDevRegistered = FALSE;
+ pDrvData->sLine = -1;
+ pDrvData->bProcEntryCreated = FALSE;
+
+ for (i = 0; i < 16; i++) {
+ pDrvData->IPCs[i].bIsEnabled = FALSE;
+ pDrvData->IPCs[i].bIsHere = FALSE;
+ pDrvData->IPCs[i].usIntCount = 0; /* no ints received yet */
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ init_waitqueue_head(&pDrvData->IPCs[i].ipc_wait_queue);
+#endif
+ }
+
+ 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;
+
+ resultMiscRegister = misc_register(&mwave_misc_dev);
+ if (resultMiscRegister < 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 (
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+ !create_proc_info_entry("mwave", 0, NULL, mwave_get_info)
+#else
+ proc_register(&proc_root, &mwave_proc)
+#endif
+ ) {
+ PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_init: Error: Failed to register /proc/mwave\n");
+ goto cleanup_error;
+ }
+ pDrvData->bProcEntryCreated = TRUE;
+
+ /* 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);
+
+
+/*
+* proc entry stuff added by Ian Pilcher <pilcher@us.ibm.com>
+*/
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
+static int mwave_get_info(char *buf, char **start, off_t offset, int len)
+{
+ DSP_3780I_CONFIG_SETTINGS *pSettings = &mwave_s_mdd.rBDData.rDspSettings;
+
+ char *out = buf;
+
+ out += sprintf(out, "3780i_IRQ %i\n", pSettings->usDspIrq);
+ out += sprintf(out, "3780i_DMA %i\n", pSettings->usDspDma);
+ out += sprintf(out, "3780i_IO %#.4x\n", pSettings->usDspBaseIO);
+ out += sprintf(out, "UART_IRQ %i\n", pSettings->usUartIrq);
+ out += sprintf(out, "UART_IO %#.4x\n", pSettings->usUartBaseIO);
+
+ return out - buf;
+}
+#else /* kernel version < 2.4.0 */
+static int mwave_read_proc(char *buf, char **start, off_t offset,
+ int xlen, int unused)
+{
+ DSP_3780I_CONFIG_SETTINGS *pSettings = &mwave_s_mdd.rBDData.rDspSettings;
+ int len;
+
+ len = sprintf(buf, "3780i_IRQ %i\n", pSettings->usDspIrq);
+ len += sprintf(&buf[len], "3780i_DMA %i\n", pSettings->usDspDma);
+ len += sprintf(&buf[len], "3780i_IO %#.4x\n", pSettings->usDspBaseIO);
+ len += sprintf(&buf[len], "UART_IRQ %i\n", pSettings->usUartIrq);
+ len += sprintf(&buf[len], "UART_IO %#.4x\n", pSettings->usUartBaseIO);
+
+ return len;
+}
+#endif
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)