697 lines
18 KiB
C
697 lines
18 KiB
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/smp_lock.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 long mwave_ioctl(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);
|
||
|
|
|
||
|
|
cycle_kernel_lock();
|
||
|
|
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 long mwave_ioctl(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_4(TRACE_MWAVE,
|
||
|
|
"mwavedd::mwave_ioctl, entry file %p cmd %x arg %x\n",
|
||
|
|
file, iocmd, (int) ioarg);
|
||
|
|
|
||
|
|
switch (iocmd) {
|
||
|
|
|
||
|
|
case IOCTL_MW_RESET:
|
||
|
|
PRINTK_1(TRACE_MWAVE,
|
||
|
|
"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
|
||
|
|
" calling tp3780I_ResetDSP\n");
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_ResetDSP(&pDrvData->rBDData);
|
||
|
|
unlock_kernel();
|
||
|
|
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");
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_StartDSP(&pDrvData->rBDData);
|
||
|
|
unlock_kernel();
|
||
|
|
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");
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_QueryAbilities(&pDrvData->rBDData,
|
||
|
|
&rAbilities);
|
||
|
|
unlock_kernel();
|
||
|
|
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);
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
|
||
|
|
iocmd,
|
||
|
|
pusBuffer,
|
||
|
|
rReadData.ulDataLength,
|
||
|
|
rReadData.usDspAddress);
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
|
||
|
|
iocmd, pusBuffer,
|
||
|
|
rReadData.ulDataLength / 2,
|
||
|
|
rReadData.usDspAddress);
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
|
||
|
|
iocmd, pusBuffer,
|
||
|
|
rWriteData.ulDataLength,
|
||
|
|
rWriteData.usDspAddress);
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
lock_kernel();
|
||
|
|
retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData,
|
||
|
|
iocmd, pusBuffer,
|
||
|
|
rWriteData.ulDataLength,
|
||
|
|
rWriteData.usDspAddress);
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IOCTL_MW_REGISTER_IPC: {
|
||
|
|
unsigned int ipcnum = (unsigned int) ioarg;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
PRINTK_3(TRACE_MWAVE,
|
||
|
|
"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
|
||
|
|
" ipcnum %x entry usIntCount %x\n",
|
||
|
|
ipcnum,
|
||
|
|
pDrvData->IPCs[ipcnum].usIntCount);
|
||
|
|
|
||
|
|
lock_kernel();
|
||
|
|
pDrvData->IPCs[ipcnum].bIsHere = FALSE;
|
||
|
|
pDrvData->IPCs[ipcnum].bIsEnabled = TRUE;
|
||
|
|
unlock_kernel();
|
||
|
|
|
||
|
|
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;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
PRINTK_3(TRACE_MWAVE,
|
||
|
|
"mwavedd::mwave_ioctl IOCTL_MW_GET_IPC"
|
||
|
|
" ipcnum %x, usIntCount %x\n",
|
||
|
|
ipcnum,
|
||
|
|
pDrvData->IPCs[ipcnum].usIntCount);
|
||
|
|
|
||
|
|
lock_kernel();
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
lock_kernel();
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
unlock_kernel();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
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,
|
||
|
|
.unlocked_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));
|
||
|
|
dev_set_name(&mwave_device, "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);
|
||
|
|
|