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path: root/drivers/usb/misc/adutux.c
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Diffstat (limited to 'drivers/usb/misc/adutux.c')
-rw-r--r--drivers/usb/misc/adutux.c141
1 files changed, 71 insertions, 70 deletions
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 284b85461410..eb3c8c142fa9 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -25,7 +25,7 @@
#include <linux/module.h>
#include <linux/usb.h>
#include <linux/mutex.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#ifdef CONFIG_USB_DEBUG
static int debug = 5;
@@ -35,8 +35,8 @@ static int debug = 1;
/* Use our own dbg macro */
#undef dbg
-#define dbg(lvl, format, arg...) \
-do { \
+#define dbg(lvl, format, arg...) \
+do { \
if (debug >= lvl) \
printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \
} while (0)
@@ -58,12 +58,12 @@ MODULE_PARM_DESC(debug, "Debug enabled or not");
/* table of devices that work with this driver */
static const struct usb_device_id device_table[] = {
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID) }, /* ADU100 */
- { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+20) }, /* ADU120 */
- { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+30) }, /* ADU130 */
+ { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+20) }, /* ADU120 */
+ { USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+30) }, /* ADU130 */
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+100) }, /* ADU200 */
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+108) }, /* ADU208 */
{ USB_DEVICE(ADU_VENDOR_ID, ADU_PRODUCT_ID+118) }, /* ADU218 */
- { }/* Terminating entry */
+ { } /* Terminating entry */
};
MODULE_DEVICE_TABLE(usb, device_table);
@@ -92,16 +92,16 @@ MODULE_DEVICE_TABLE(usb, device_table);
/* Structure to hold all of our device specific stuff */
struct adu_device {
struct mutex mtx;
- struct usb_device* udev; /* save off the usb device pointer */
- struct usb_interface* interface;
+ struct usb_device *udev; /* save off the usb device pointer */
+ struct usb_interface *interface;
unsigned int minor; /* the starting minor number for this device */
char serial_number[8];
int open_count; /* number of times this port has been opened */
- char* read_buffer_primary;
+ char *read_buffer_primary;
int read_buffer_length;
- char* read_buffer_secondary;
+ char *read_buffer_secondary;
int secondary_head;
int secondary_tail;
spinlock_t buflock;
@@ -109,14 +109,14 @@ struct adu_device {
wait_queue_head_t read_wait;
wait_queue_head_t write_wait;
- char* interrupt_in_buffer;
- struct usb_endpoint_descriptor* interrupt_in_endpoint;
- struct urb* interrupt_in_urb;
+ char *interrupt_in_buffer;
+ struct usb_endpoint_descriptor *interrupt_in_endpoint;
+ struct urb *interrupt_in_urb;
int read_urb_finished;
- char* interrupt_out_buffer;
- struct usb_endpoint_descriptor* interrupt_out_endpoint;
- struct urb* interrupt_out_urb;
+ char *interrupt_out_buffer;
+ struct usb_endpoint_descriptor *interrupt_out_endpoint;
+ struct urb *interrupt_out_urb;
int out_urb_finished;
};
@@ -147,10 +147,10 @@ static void adu_abort_transfers(struct adu_device *dev)
{
unsigned long flags;
- dbg(2," %s : enter", __func__);
+ dbg(2, " %s : enter", __func__);
if (dev->udev == NULL) {
- dbg(1," %s : udev is null", __func__);
+ dbg(1, " %s : udev is null", __func__);
goto exit;
}
@@ -172,7 +172,7 @@ static void adu_abort_transfers(struct adu_device *dev)
spin_unlock_irqrestore(&dev->buflock, flags);
exit:
- dbg(2," %s : leave", __func__);
+ dbg(2, " %s : leave", __func__);
}
static void adu_delete(struct adu_device *dev)
@@ -196,7 +196,7 @@ static void adu_interrupt_in_callback(struct urb *urb)
struct adu_device *dev = urb->context;
int status = urb->status;
- dbg(4," %s : enter, status %d", __func__, status);
+ dbg(4, " %s : enter, status %d", __func__, status);
adu_debug_data(5, __func__, urb->actual_length,
urb->transfer_buffer);
@@ -205,7 +205,7 @@ static void adu_interrupt_in_callback(struct urb *urb)
if (status != 0) {
if ((status != -ENOENT) && (status != -ECONNRESET) &&
(status != -ESHUTDOWN)) {
- dbg(1," %s : nonzero status received: %d",
+ dbg(1, " %s : nonzero status received: %d",
__func__, status);
}
goto exit;
@@ -220,10 +220,10 @@ static void adu_interrupt_in_callback(struct urb *urb)
dev->interrupt_in_buffer, urb->actual_length);
dev->read_buffer_length += urb->actual_length;
- dbg(2," %s reading %d ", __func__,
+ dbg(2, " %s reading %d ", __func__,
urb->actual_length);
} else {
- dbg(1," %s : read_buffer overflow", __func__);
+ dbg(1, " %s : read_buffer overflow", __func__);
}
}
@@ -234,7 +234,7 @@ exit:
wake_up_interruptible(&dev->read_wait);
adu_debug_data(5, __func__, urb->actual_length,
urb->transfer_buffer);
- dbg(4," %s : leave, status %d", __func__, status);
+ dbg(4, " %s : leave, status %d", __func__, status);
}
static void adu_interrupt_out_callback(struct urb *urb)
@@ -242,8 +242,8 @@ static void adu_interrupt_out_callback(struct urb *urb)
struct adu_device *dev = urb->context;
int status = urb->status;
- dbg(4," %s : enter, status %d", __func__, status);
- adu_debug_data(5,__func__, urb->actual_length, urb->transfer_buffer);
+ dbg(4, " %s : enter, status %d", __func__, status);
+ adu_debug_data(5, __func__, urb->actual_length, urb->transfer_buffer);
if (status != 0) {
if ((status != -ENOENT) &&
@@ -262,7 +262,7 @@ exit:
adu_debug_data(5, __func__, urb->actual_length,
urb->transfer_buffer);
- dbg(4," %s : leave, status %d", __func__, status);
+ dbg(4, " %s : leave, status %d", __func__, status);
}
static int adu_open(struct inode *inode, struct file *file)
@@ -272,11 +272,12 @@ static int adu_open(struct inode *inode, struct file *file)
int subminor;
int retval;
- dbg(2,"%s : enter", __func__);
+ dbg(2, "%s : enter", __func__);
subminor = iminor(inode);
- if ((retval = mutex_lock_interruptible(&adutux_mutex))) {
+ retval = mutex_lock_interruptible(&adutux_mutex);
+ if (retval) {
dbg(2, "%s : mutex lock failed", __func__);
goto exit_no_lock;
}
@@ -302,7 +303,7 @@ static int adu_open(struct inode *inode, struct file *file)
}
++dev->open_count;
- dbg(2,"%s : open count %d", __func__, dev->open_count);
+ dbg(2, "%s : open count %d", __func__, dev->open_count);
/* save device in the file's private structure */
file->private_data = dev;
@@ -311,7 +312,7 @@ static int adu_open(struct inode *inode, struct file *file)
dev->read_buffer_length = 0;
/* fixup first read by having urb waiting for it */
- usb_fill_int_urb(dev->interrupt_in_urb,dev->udev,
+ usb_fill_int_urb(dev->interrupt_in_urb, dev->udev,
usb_rcvintpipe(dev->udev,
dev->interrupt_in_endpoint->bEndpointAddress),
dev->interrupt_in_buffer,
@@ -332,23 +333,23 @@ static int adu_open(struct inode *inode, struct file *file)
exit_no_device:
mutex_unlock(&adutux_mutex);
exit_no_lock:
- dbg(2,"%s : leave, return value %d ", __func__, retval);
+ dbg(2, "%s : leave, return value %d ", __func__, retval);
return retval;
}
static void adu_release_internal(struct adu_device *dev)
{
- dbg(2," %s : enter", __func__);
+ dbg(2, " %s : enter", __func__);
/* decrement our usage count for the device */
--dev->open_count;
- dbg(2," %s : open count %d", __func__, dev->open_count);
+ dbg(2, " %s : open count %d", __func__, dev->open_count);
if (dev->open_count <= 0) {
adu_abort_transfers(dev);
dev->open_count = 0;
}
- dbg(2," %s : leave", __func__);
+ dbg(2, " %s : leave", __func__);
}
static int adu_release(struct inode *inode, struct file *file)
@@ -356,17 +357,17 @@ static int adu_release(struct inode *inode, struct file *file)
struct adu_device *dev;
int retval = 0;
- dbg(2," %s : enter", __func__);
+ dbg(2, " %s : enter", __func__);
if (file == NULL) {
- dbg(1," %s : file is NULL", __func__);
+ dbg(1, " %s : file is NULL", __func__);
retval = -ENODEV;
goto exit;
}
dev = file->private_data;
if (dev == NULL) {
- dbg(1," %s : object is NULL", __func__);
+ dbg(1, " %s : object is NULL", __func__);
retval = -ENODEV;
goto exit;
}
@@ -374,7 +375,7 @@ static int adu_release(struct inode *inode, struct file *file)
mutex_lock(&adutux_mutex); /* not interruptible */
if (dev->open_count <= 0) {
- dbg(1," %s : device not opened", __func__);
+ dbg(1, " %s : device not opened", __func__);
retval = -ENODEV;
goto unlock;
}
@@ -388,7 +389,7 @@ static int adu_release(struct inode *inode, struct file *file)
unlock:
mutex_unlock(&adutux_mutex);
exit:
- dbg(2," %s : leave, return value %d", __func__, retval);
+ dbg(2, " %s : leave, return value %d", __func__, retval);
return retval;
}
@@ -405,10 +406,10 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
unsigned long flags;
DECLARE_WAITQUEUE(wait, current);
- dbg(2," %s : enter, count = %Zd, file=%p", __func__, count, file);
+ dbg(2, " %s : enter, count = %Zd, file=%p", __func__, count, file);
dev = file->private_data;
- dbg(2," %s : dev=%p", __func__, dev);
+ dbg(2, " %s : dev=%p", __func__, dev);
if (mutex_lock_interruptible(&dev->mtx))
return -ERESTARTSYS;
@@ -423,15 +424,15 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
/* verify that some data was requested */
if (count == 0) {
- dbg(1," %s : read request of 0 bytes", __func__);
+ dbg(1, " %s : read request of 0 bytes", __func__);
goto exit;
}
timeout = COMMAND_TIMEOUT;
- dbg(2," %s : about to start looping", __func__);
+ dbg(2, " %s : about to start looping", __func__);
while (bytes_to_read) {
int data_in_secondary = dev->secondary_tail - dev->secondary_head;
- dbg(2," %s : while, data_in_secondary=%d, status=%d",
+ dbg(2, " %s : while, data_in_secondary=%d, status=%d",
__func__, data_in_secondary,
dev->interrupt_in_urb->status);
@@ -456,7 +457,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
if (dev->read_buffer_length) {
/* we secure access to the primary */
char *tmp;
- dbg(2," %s : swap, read_buffer_length = %d",
+ dbg(2, " %s : swap, read_buffer_length = %d",
__func__, dev->read_buffer_length);
tmp = dev->read_buffer_secondary;
dev->read_buffer_secondary = dev->read_buffer_primary;
@@ -472,16 +473,16 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
if (!dev->read_urb_finished) {
/* somebody is doing IO */
spin_unlock_irqrestore(&dev->buflock, flags);
- dbg(2," %s : submitted already", __func__);
+ dbg(2, " %s : submitted already", __func__);
} else {
/* we must initiate input */
- dbg(2," %s : initiate input", __func__);
+ dbg(2, " %s : initiate input", __func__);
dev->read_urb_finished = 0;
spin_unlock_irqrestore(&dev->buflock, flags);
- usb_fill_int_urb(dev->interrupt_in_urb,dev->udev,
- usb_rcvintpipe(dev->udev,
- dev->interrupt_in_endpoint->bEndpointAddress),
+ usb_fill_int_urb(dev->interrupt_in_urb, dev->udev,
+ usb_rcvintpipe(dev->udev,
+ dev->interrupt_in_endpoint->bEndpointAddress),
dev->interrupt_in_buffer,
usb_endpoint_maxp(dev->interrupt_in_endpoint),
adu_interrupt_in_callback,
@@ -493,7 +494,7 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
if (retval == -ENOMEM) {
retval = bytes_read ? bytes_read : -ENOMEM;
}
- dbg(2," %s : submit failed", __func__);
+ dbg(2, " %s : submit failed", __func__);
goto exit;
}
}
@@ -512,13 +513,13 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
remove_wait_queue(&dev->read_wait, &wait);
if (timeout <= 0) {
- dbg(2," %s : timeout", __func__);
+ dbg(2, " %s : timeout", __func__);
retval = bytes_read ? bytes_read : -ETIMEDOUT;
goto exit;
}
if (signal_pending(current)) {
- dbg(2," %s : signal pending", __func__);
+ dbg(2, " %s : signal pending", __func__);
retval = bytes_read ? bytes_read : -EINTR;
goto exit;
}
@@ -532,9 +533,9 @@ static ssize_t adu_read(struct file *file, __user char *buffer, size_t count,
if (should_submit && dev->read_urb_finished) {
dev->read_urb_finished = 0;
spin_unlock_irqrestore(&dev->buflock, flags);
- usb_fill_int_urb(dev->interrupt_in_urb,dev->udev,
+ usb_fill_int_urb(dev->interrupt_in_urb, dev->udev,
usb_rcvintpipe(dev->udev,
- dev->interrupt_in_endpoint->bEndpointAddress),
+ dev->interrupt_in_endpoint->bEndpointAddress),
dev->interrupt_in_buffer,
usb_endpoint_maxp(dev->interrupt_in_endpoint),
adu_interrupt_in_callback,
@@ -551,7 +552,7 @@ exit:
/* unlock the device */
mutex_unlock(&dev->mtx);
- dbg(2," %s : leave, return value %d", __func__, retval);
+ dbg(2, " %s : leave, return value %d", __func__, retval);
return retval;
}
@@ -566,7 +567,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
unsigned long flags;
int retval;
- dbg(2," %s : enter, count = %Zd", __func__, count);
+ dbg(2, " %s : enter, count = %Zd", __func__, count);
dev = file->private_data;
@@ -584,7 +585,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
/* verify that we actually have some data to write */
if (count == 0) {
- dbg(1," %s : write request of 0 bytes", __func__);
+ dbg(1, " %s : write request of 0 bytes", __func__);
goto exit;
}
@@ -597,7 +598,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
mutex_unlock(&dev->mtx);
if (signal_pending(current)) {
- dbg(1," %s : interrupted", __func__);
+ dbg(1, " %s : interrupted", __func__);
set_current_state(TASK_RUNNING);
retval = -EINTR;
goto exit_onqueue;
@@ -614,17 +615,17 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
goto exit_nolock;
}
- dbg(4," %s : in progress, count = %Zd", __func__, count);
+ dbg(4, " %s : in progress, count = %Zd", __func__, count);
} else {
spin_unlock_irqrestore(&dev->buflock, flags);
set_current_state(TASK_RUNNING);
remove_wait_queue(&dev->write_wait, &waita);
- dbg(4," %s : sending, count = %Zd", __func__, count);
+ dbg(4, " %s : sending, count = %Zd", __func__, count);
/* write the data into interrupt_out_buffer from userspace */
buffer_size = usb_endpoint_maxp(dev->interrupt_out_endpoint);
bytes_to_write = count > buffer_size ? buffer_size : count;
- dbg(4," %s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd",
+ dbg(4, " %s : buffer_size = %Zd, count = %Zd, bytes_to_write = %Zd",
__func__, buffer_size, count, bytes_to_write);
if (copy_from_user(dev->interrupt_out_buffer, buffer, bytes_to_write) != 0) {
@@ -664,7 +665,7 @@ static ssize_t adu_write(struct file *file, const __user char *buffer,
exit:
mutex_unlock(&dev->mtx);
exit_nolock:
- dbg(2," %s : leave, return value %d", __func__, retval);
+ dbg(2, " %s : leave, return value %d", __func__, retval);
return retval;
exit_onqueue:
@@ -710,7 +711,7 @@ static int adu_probe(struct usb_interface *interface,
int out_end_size;
int i;
- dbg(2," %s : enter", __func__);
+ dbg(2, " %s : enter", __func__);
if (udev == NULL) {
dev_err(&interface->dev, "udev is NULL.\n");
@@ -811,7 +812,7 @@ static int adu_probe(struct usb_interface *interface,
dev_err(&interface->dev, "Could not retrieve serial number\n");
goto error;
}
- dbg(2," %s : serial_number=%s", __func__, dev->serial_number);
+ dbg(2, " %s : serial_number=%s", __func__, dev->serial_number);
/* we can register the device now, as it is ready */
usb_set_intfdata(interface, dev);
@@ -832,7 +833,7 @@ static int adu_probe(struct usb_interface *interface,
udev->descriptor.idProduct, dev->serial_number,
(dev->minor - ADU_MINOR_BASE));
exit:
- dbg(2," %s : leave, return value %p (dev)", __func__, dev);
+ dbg(2, " %s : leave, return value %p (dev)", __func__, dev);
return retval;
@@ -851,7 +852,7 @@ static void adu_disconnect(struct usb_interface *interface)
struct adu_device *dev;
int minor;
- dbg(2," %s : enter", __func__);
+ dbg(2, " %s : enter", __func__);
dev = usb_get_intfdata(interface);
@@ -865,7 +866,7 @@ static void adu_disconnect(struct usb_interface *interface)
usb_set_intfdata(interface, NULL);
/* if the device is not opened, then we clean up right now */
- dbg(2," %s : open count %d", __func__, dev->open_count);
+ dbg(2, " %s : open count %d", __func__, dev->open_count);
if (!dev->open_count)
adu_delete(dev);
@@ -874,7 +875,7 @@ static void adu_disconnect(struct usb_interface *interface)
dev_info(&interface->dev, "ADU device adutux%d now disconnected\n",
(minor - ADU_MINOR_BASE));
- dbg(2," %s : leave", __func__);
+ dbg(2, " %s : leave", __func__);
}
/* usb specific object needed to register this driver with the usb subsystem */
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.