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path: root/drivers/char/mwave/mwavedd.c
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Diffstat (limited to 'drivers/char/mwave/mwavedd.c')
-rw-r--r--drivers/char/mwave/mwavedd.c97
1 files changed, 60 insertions, 37 deletions
diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c
index d568991ac6b..164544afd68 100644
--- a/drivers/char/mwave/mwavedd.c
+++ b/drivers/char/mwave/mwavedd.c
@@ -56,7 +56,9 @@
#include <linux/serial.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
+#include <linux/mutex.h>
#include <linux/delay.h>
+#include <linux/serial_8250.h>
#include "smapi.h"
#include "mwavedd.h"
#include "3780i.h"
@@ -71,6 +73,7 @@ MODULE_LICENSE("GPL");
* checks are made against other devices (ie. superio) for conflicts.
* We'll depend on users using the tpctl utility to do that for now
*/
+static DEFINE_MUTEX(mwave_mutex);
int mwave_debug = 0;
int mwave_3780i_irq = 0;
int mwave_3780i_io = 0;
@@ -84,8 +87,8 @@ 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);
+static long mwave_ioctl(struct file *filp, unsigned int iocmd,
+ unsigned long ioarg);
MWAVE_DEVICE_DATA mwave_s_mdd;
@@ -116,16 +119,16 @@ static int mwave_close(struct inode *inode, struct file *file)
return retval;
}
-static int mwave_ioctl(struct inode *inode, struct file *file,
- unsigned int iocmd, unsigned long ioarg)
+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_5(TRACE_MWAVE,
- "mwavedd::mwave_ioctl, entry inode %p file %p cmd %x arg %x\n",
- inode, file, iocmd, (int) ioarg);
+ PRINTK_4(TRACE_MWAVE,
+ "mwavedd::mwave_ioctl, entry file %p cmd %x arg %x\n",
+ file, iocmd, (int) ioarg);
switch (iocmd) {
@@ -133,7 +136,9 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
PRINTK_1(TRACE_MWAVE,
"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
" calling tp3780I_ResetDSP\n");
+ mutex_lock(&mwave_mutex);
retval = tp3780I_ResetDSP(&pDrvData->rBDData);
+ mutex_unlock(&mwave_mutex);
PRINTK_2(TRACE_MWAVE,
"mwavedd::mwave_ioctl, IOCTL_MW_RESET"
" retval %x from tp3780I_ResetDSP\n",
@@ -144,7 +149,9 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
PRINTK_1(TRACE_MWAVE,
"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
" calling tp3780I_StartDSP\n");
+ mutex_lock(&mwave_mutex);
retval = tp3780I_StartDSP(&pDrvData->rBDData);
+ mutex_unlock(&mwave_mutex);
PRINTK_2(TRACE_MWAVE,
"mwavedd::mwave_ioctl, IOCTL_MW_RUN"
" retval %x from tp3780I_StartDSP\n",
@@ -158,8 +165,10 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
"mwavedd::mwave_ioctl,"
" IOCTL_MW_DSP_ABILITIES calling"
" tp3780I_QueryAbilities\n");
+ mutex_lock(&mwave_mutex);
retval = tp3780I_QueryAbilities(&pDrvData->rBDData,
&rAbilities);
+ mutex_unlock(&mwave_mutex);
PRINTK_2(TRACE_MWAVE,
"mwavedd::mwave_ioctl, IOCTL_MW_DSP_ABILITIES"
" retval %x from tp3780I_QueryAbilities\n",
@@ -190,11 +199,13 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
"mwavedd::mwave_ioctl IOCTL_MW_READ_DATA,"
" size %lx, ioarg %lx pusBuffer %p\n",
rReadData.ulDataLength, ioarg, pusBuffer);
+ mutex_lock(&mwave_mutex);
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
iocmd,
pusBuffer,
rReadData.ulDataLength,
rReadData.usDspAddress);
+ mutex_unlock(&mwave_mutex);
}
break;
@@ -212,10 +223,12 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
" size %lx, ioarg %lx pusBuffer %p\n",
rReadData.ulDataLength / 2, ioarg,
pusBuffer);
+ mutex_lock(&mwave_mutex);
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
iocmd, pusBuffer,
rReadData.ulDataLength / 2,
rReadData.usDspAddress);
+ mutex_unlock(&mwave_mutex);
}
break;
@@ -233,10 +246,12 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
" size %lx, ioarg %lx pusBuffer %p\n",
rWriteData.ulDataLength, ioarg,
pusBuffer);
+ mutex_lock(&mwave_mutex);
retval = tp3780I_ReadWriteDspDStore(&pDrvData->rBDData,
iocmd, pusBuffer,
rWriteData.ulDataLength,
rWriteData.usDspAddress);
+ mutex_unlock(&mwave_mutex);
}
break;
@@ -254,23 +269,19 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
" size %lx, ioarg %lx pusBuffer %p\n",
rWriteData.ulDataLength, ioarg,
pusBuffer);
+ mutex_lock(&mwave_mutex);
retval = tp3780I_ReadWriteDspIStore(&pDrvData->rBDData,
iocmd, pusBuffer,
rWriteData.ulDataLength,
rWriteData.usDspAddress);
+ mutex_unlock(&mwave_mutex);
}
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)) {
+ if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) {
PRINTK_ERROR(KERN_ERR_MWAVE
"mwavedd::mwave_ioctl:"
" IOCTL_MW_REGISTER_IPC:"
@@ -278,8 +289,16 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
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);
+
+ mutex_lock(&mwave_mutex);
pDrvData->IPCs[ipcnum].bIsHere = FALSE;
pDrvData->IPCs[ipcnum].bIsEnabled = TRUE;
+ mutex_unlock(&mwave_mutex);
PRINTK_2(TRACE_MWAVE,
"mwavedd::mwave_ioctl IOCTL_MW_REGISTER_IPC"
@@ -291,19 +310,20 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
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)) {
+ 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);
+ mutex_lock(&mwave_mutex);
if (pDrvData->IPCs[ipcnum].bIsEnabled == TRUE) {
DECLARE_WAITQUEUE(wait, current);
@@ -344,6 +364,7 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
" processing\n",
ipcnum);
}
+ mutex_unlock(&mwave_mutex);
}
break;
@@ -354,7 +375,7 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
"mwavedd::mwave_ioctl IOCTL_MW_UNREGISTER_IPC"
" ipcnum %x\n",
ipcnum);
- if (ipcnum > ARRAY_SIZE(pDrvData->IPCs)) {
+ if (ipcnum >= ARRAY_SIZE(pDrvData->IPCs)) {
PRINTK_ERROR(KERN_ERR_MWAVE
"mwavedd::mwave_ioctl:"
" IOCTL_MW_UNREGISTER_IPC:"
@@ -362,19 +383,18 @@ static int mwave_ioctl(struct inode *inode, struct file *file,
ipcnum);
return -EINVAL;
}
+ mutex_lock(&mwave_mutex);
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);
}
}
+ mutex_unlock(&mwave_mutex);
}
break;
default:
- PRINTK_ERROR(KERN_ERR_MWAVE "mwavedd::mwave_ioctl:"
- " Error: Unrecognized iocmd %x\n",
- iocmd);
return -ENOTTY;
break;
} /* switch */
@@ -410,8 +430,8 @@ static ssize_t mwave_write(struct file *file, const char __user *buf,
static int register_serial_portandirq(unsigned int port, int irq)
{
- struct serial_struct serial;
-
+ struct uart_8250_port uart;
+
switch ( port ) {
case 0x3f8:
case 0x2f8:
@@ -442,22 +462,25 @@ static int register_serial_portandirq(unsigned int port, int irq)
} /* switch */
/* irq is okay */
- memset(&serial, 0, sizeof(serial));
- serial.port = port;
- serial.irq = irq;
- serial.flags = ASYNC_SHARE_IRQ;
-
- return register_serial(&serial);
+ memset(&uart, 0, sizeof(uart));
+
+ uart.port.uartclk = 1843200;
+ uart.port.iobase = port;
+ uart.port.irq = irq;
+ uart.port.iotype = UPIO_PORT;
+ uart.port.flags = UPF_SHARE_IRQ;
+ return serial8250_register_8250_port(&uart);
}
-static struct file_operations mwave_fops = {
+static const struct file_operations mwave_fops = {
.owner = THIS_MODULE,
.read = mwave_read,
.write = mwave_write,
- .ioctl = mwave_ioctl,
+ .unlocked_ioctl = mwave_ioctl,
.open = mwave_open,
- .release = mwave_close
+ .release = mwave_close,
+ .llseek = default_llseek,
};
@@ -523,7 +546,7 @@ static void mwave_exit(void)
#endif
if ( pDrvData->sLine >= 0 ) {
- unregister_serial(pDrvData->sLine);
+ serial8250_unregister_port(pDrvData->sLine);
}
if (pDrvData->bMwaveDevRegistered) {
misc_deregister(&mwave_misc_dev);
@@ -641,7 +664,7 @@ static int __init mwave_init(void)
#if 0
/* sysfs */
memset(&mwave_device, 0, sizeof (struct device));
- snprintf(mwave_device.bus_id, BUS_ID_SIZE, "mwave");
+ dev_set_name(&mwave_device, "mwave");
if (device_register(&mwave_device))
goto cleanup_error;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-13 05:31:25 +0000