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-rw-r--r--drivers/staging/cpc-usb/cpc-usb_drv.c188
1 files changed, 75 insertions, 113 deletions
diff --git a/drivers/staging/cpc-usb/cpc-usb_drv.c b/drivers/staging/cpc-usb/cpc-usb_drv.c
index b8ef701a2bc..14aca399fc4 100644
--- a/drivers/staging/cpc-usb/cpc-usb_drv.c
+++ b/drivers/staging/cpc-usb/cpc-usb_drv.c
@@ -30,11 +30,6 @@
#include <linux/version.h>
-/* usb_kill_urb has been introduced in kernel version 2.6.8 (RC2) */
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,8))
-#define usb_kill_urb usb_unlink_urb
-#endif
-
#ifdef CONFIG_PROC_FS
# include <linux/proc_fs.h>
#endif
@@ -68,11 +63,11 @@ MODULE_LICENSE("GPL v2");
#define CPC_USB_PROC_DIR CPC_PROC_DIR "cpc-usb"
-static struct proc_dir_entry *procDir = NULL;
-static struct proc_dir_entry *procEntry = NULL;
+static struct proc_dir_entry *procDir;
+static struct proc_dir_entry *procEntry;
/* Module parameters */
-static int debug = 0;
+static int debug;
module_param(debug, int, S_IRUGO);
/* table of devices that work with this driver */
@@ -91,16 +86,16 @@ DECLARE_WAIT_QUEUE_HEAD(rmmodWq);
atomic_t useCount;
static CPC_USB_T *CPCUSB_Table[CPC_USB_CARD_CNT] = { 0 };
-static unsigned int CPCUsbCnt = 0;
+static unsigned int CPCUsbCnt;
/* prevent races between open() and disconnect() */
static DECLARE_MUTEX(disconnect_sem);
/* local function prototypes */
static ssize_t cpcusb_read(struct file *file, char *buffer, size_t count,
- loff_t * ppos);
+ loff_t *ppos);
static ssize_t cpcusb_write(struct file *file, const char *buffer,
- size_t count, loff_t * ppos);
+ size_t count, loff_t *ppos);
static unsigned int cpcusb_poll(struct file *file, poll_table * wait);
static int cpcusb_open(struct inode *inode, struct file *file);
static int cpcusb_release(struct inode *inode, struct file *file);
@@ -109,23 +104,11 @@ static int cpcusb_probe(struct usb_interface *interface,
const struct usb_device_id *id);
static void cpcusb_disconnect(struct usb_interface *interface);
-static void cpcusb_read_bulk_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-);
-static void cpcusb_write_bulk_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-);
-static void cpcusb_read_interrupt_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-);
+static void cpcusb_read_bulk_callback(struct urb *urb);
+static void cpcusb_write_bulk_callback(struct urb *urb);
+static void cpcusb_read_interrupt_callback(struct urb *urb);
-static int cpcusb_setup_intrep(CPC_USB_T * card);
+static int cpcusb_setup_intrep(CPC_USB_T *card);
static struct file_operations cpcusb_fops = {
/*
@@ -153,19 +136,11 @@ static struct file_operations cpcusb_fops = {
static struct usb_class_driver cpcusb_class = {
.name = "usb/cpc_usb%d",
.fops = &cpcusb_fops,
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,14))
- .mode =
- S_IFCHR | S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH |
- S_IWOTH,
-#endif
.minor_base = CPC_USB_BASE_MNR,
};
/* usb specific object needed to register this driver with the usb subsystem */
static struct usb_driver cpcusb_driver = {
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,14))
- .owner = THIS_MODULE,
-#endif
.name = "cpc-usb",
.probe = cpcusb_probe,
.disconnect = cpcusb_disconnect,
@@ -210,7 +185,7 @@ static int cpcusb_proc_read_info(char *page, char **start, off_t off,
/*
* Remove CPC-USB and cleanup
*/
-static inline void cpcusb_delete(CPC_USB_T * card)
+static inline void cpcusb_delete(CPC_USB_T *card)
{
if (card) {
if (card->chan) {
@@ -231,7 +206,7 @@ static inline void cpcusb_delete(CPC_USB_T * card)
/*
* setup the interrupt IN endpoint of a specific CPC-USB device
*/
-static int cpcusb_setup_intrep(CPC_USB_T * card)
+static int cpcusb_setup_intrep(CPC_USB_T *card)
{
int retval = 0;
struct usb_endpoint_descriptor *ep;
@@ -243,21 +218,21 @@ static int cpcusb_setup_intrep(CPC_USB_T * card)
/* setup the urb */
usb_fill_int_urb(card->intr_in_urb, card->udev,
- usb_rcvintpipe(card->udev, card->num_intr_in),
- card->intr_in_buffer,
- sizeof(card->intr_in_buffer),
- cpcusb_read_interrupt_callback,
- card,
- ep->bInterval);
+ usb_rcvintpipe(card->udev, card->num_intr_in),
+ card->intr_in_buffer,
+ sizeof(card->intr_in_buffer),
+ cpcusb_read_interrupt_callback,
+ card,
+ ep->bInterval);
card->intr_in_urb->status = 0; /* needed! */
/* submit the urb */
retval = usb_submit_urb(card->intr_in_urb, GFP_KERNEL);
- if (retval) {
- err("%s - failed submitting intr urb, error %d", __FUNCTION__, retval);
- }
+ if (retval)
+ err("%s - failed submitting intr urb, error %d", __func__,
+ retval);
return retval;
}
@@ -277,7 +252,7 @@ static int cpcusb_open(struct inode *inode, struct file *file)
interface = usb_find_interface(&cpcusb_driver, subminor);
if (!interface) {
err("%s - error, can't find device for minor %d",
- __FUNCTION__, subminor);
+ __func__, subminor);
retval = CPC_ERR_NO_INTERFACE_PRESENT;
goto exit_no_device;
}
@@ -302,21 +277,21 @@ static int cpcusb_open(struct inode *inode, struct file *file)
file->private_data = card;
for (j = 0; j < CPC_USB_URB_CNT; j++) {
usb_fill_bulk_urb(card->urbs[j].urb, card->udev,
- usb_rcvbulkpipe(card->udev, card->num_bulk_in),
- card->urbs[j].buffer, card->urbs[j].size,
- cpcusb_read_bulk_callback, card);
+ usb_rcvbulkpipe(card->udev, card->num_bulk_in),
+ card->urbs[j].buffer, card->urbs[j].size,
+ cpcusb_read_bulk_callback, card);
retval = usb_submit_urb(card->urbs[j].urb, GFP_KERNEL);
if (retval) {
err("%s - failed submitting read urb, error %d",
- __FUNCTION__, retval);
+ __func__, retval);
retval = CPC_ERR_TRANSMISSION_FAILED;
goto exit_on_error;
}
}
- info("%s - %d URB's submitted", __FUNCTION__, j);
+ info("%s - %d URB's submitted", __func__, j);
ResetBuffer(card->chan);
@@ -341,7 +316,7 @@ static unsigned int cpcusb_poll(struct file *file, poll_table * wait)
unsigned int retval = 0;
if (!card) {
- err("%s - device object lost", __FUNCTION__);
+ err("%s - device object lost", __func__);
return -EIO;
}
@@ -362,7 +337,7 @@ static int cpcusb_release(struct inode *inode, struct file *file)
int j, retval = 0;
if (card == NULL) {
- dbg("%s - object is NULL", __FUNCTION__);
+ dbg("%s - object is NULL", __func__);
return CPC_ERR_NO_INTERFACE_PRESENT;
}
@@ -370,7 +345,7 @@ static int cpcusb_release(struct inode *inode, struct file *file)
down(&card->sem);
if (!card->open) {
- dbg("%s - device not opened", __FUNCTION__);
+ dbg("%s - device not opened", __func__);
retval = CPC_ERR_NO_INTERFACE_PRESENT;
goto exit_not_opened;
}
@@ -417,7 +392,7 @@ exit_not_opened:
}
static ssize_t cpcusb_read(struct file *file, char *buffer, size_t count,
- loff_t * ppos)
+ loff_t *ppos)
{
CPC_USB_T *card = (CPC_USB_T *) file->private_data;
CPC_CHAN_T *chan;
@@ -460,7 +435,7 @@ static ssize_t cpcusb_read(struct file *file, char *buffer, size_t count,
retval = sizeof(CPC_MSG_T);
}
}
-// spin_unlock_irqrestore(&card->slock, flags);
+/* spin_unlock_irqrestore(&card->slock, flags); */
/* unlock the device */
up(&card->sem);
@@ -469,9 +444,9 @@ static ssize_t cpcusb_read(struct file *file, char *buffer, size_t count,
}
#define SHIFT 1
-static void inline cpcusb_align_buffer_alignment(unsigned char *buf)
+static inline void cpcusb_align_buffer_alignment(unsigned char *buf)
{
- // CPC-USB uploads packed bytes.
+ /* CPC-USB uploads packed bytes. */
CPC_MSG_T *cpc = (CPC_MSG_T *) buf;
unsigned int i;
@@ -481,9 +456,9 @@ static void inline cpcusb_align_buffer_alignment(unsigned char *buf)
}
}
-static int cpc_get_buffer_count(CPC_CHAN_T * chan)
+static int cpc_get_buffer_count(CPC_CHAN_T *chan)
{
- // check the buffer parameters
+ /* check the buffer parameters */
if (chan->iidx == chan->oidx)
return !chan->WnR ? CPC_MSG_BUF_CNT : 0;
else if (chan->iidx >= chan->oidx)
@@ -493,7 +468,7 @@ static int cpc_get_buffer_count(CPC_CHAN_T * chan)
}
static ssize_t cpcusb_write(struct file *file, const char *buffer,
- size_t count, loff_t * ppos)
+ size_t count, loff_t *ppos)
{
CPC_USB_T *card = (CPC_USB_T *) file->private_data;
CPC_USB_WRITE_URB_T *wrUrb = NULL;
@@ -507,7 +482,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
CPC_MSG_T *info = NULL;
dbg("%s - entered minor %d, count = %d, present = %d",
- __FUNCTION__, card->minor, count, card->present);
+ __func__, card->minor, count, card->present);
if (count > sizeof(CPC_MSG_T))
return CPC_ERR_UNKNOWN;
@@ -527,7 +502,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
/* verify that we actually have some data to write */
if (count == 0) {
- dbg("%s - write request of 0 bytes", __FUNCTION__);
+ dbg("%s - write request of 0 bytes", __func__);
goto exit;
}
@@ -537,7 +512,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
if (info->type != CPC_CMD_T_CLEAR_CMD_QUEUE
|| card->free_slots <= 0) {
dbg("%s - send buffer full please try again %d",
- __FUNCTION__, card->free_slots);
+ __func__, card->free_slots);
retval = CPC_ERR_CAN_NO_TRANSMIT_BUF;
goto exit;
}
@@ -556,7 +531,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
/* don't found write urb say error */
if (!wrUrb) {
- dbg("%s - no free send urb available", __FUNCTION__);
+ dbg("%s - no free send urb available", __func__);
retval = CPC_ERR_CAN_NO_TRANSMIT_BUF;
goto exit;
}
@@ -576,7 +551,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
/* check if it is a DRIVER information message, so we can
* response to that message and not the USB
*/
- info = (CPC_MSG_T *) & obuf[4];
+ info = (CPC_MSG_T *) &obuf[4];
bytes_written = 11 + info->length;
if (bytes_written >= wrUrb->size) {
@@ -662,7 +637,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
/* if it is a parameter message convert it from SJA1000 controller
* settings to M16C Basic controller settings
*/
- SJA1000_TO_M16C_BASIC_Params((CPC_MSG_T *) & obuf[4]);
+ SJA1000_TO_M16C_BASIC_Params((CPC_MSG_T *) &obuf[4]);
}
/* don't forget the byte alignment */
@@ -681,7 +656,7 @@ static ssize_t cpcusb_write(struct file *file, const char *buffer,
if (retval) {
atomic_set(&wrUrb->busy, 0); /* release urb */
err("%s - failed submitting write urb, error %d",
- __FUNCTION__, retval);
+ __func__, retval);
} else {
retval = bytes_written;
}
@@ -690,7 +665,7 @@ exit:
/* unlock the device */
up(&card->sem);
- dbg("%s - leaved", __FUNCTION__);
+ dbg("%s - leaved", __func__);
return retval;
}
@@ -698,11 +673,7 @@ exit:
/*
* callback for interrupt IN urb
*/
-static void cpcusb_read_interrupt_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-)
+static void cpcusb_read_interrupt_callback(struct urb *urb)
{
CPC_USB_T *card = (CPC_USB_T *) urb->context;
int retval;
@@ -712,7 +683,7 @@ static void cpcusb_read_interrupt_callback(struct urb *urb
if (!card->present) {
spin_unlock_irqrestore(&card->slock, flags);
- info("%s - no such device", __FUNCTION__);
+ info("%s - no such device", __func__);
return;
}
@@ -725,17 +696,17 @@ static void cpcusb_read_interrupt_callback(struct urb *urb
case -ESHUTDOWN:
/* urb was killed */
spin_unlock_irqrestore(&card->slock, flags);
- dbg("%s - intr urb killed", __FUNCTION__);
+ dbg("%s - intr urb killed", __func__);
return;
default:
- info("%s - nonzero urb status %d", __FUNCTION__, urb->status);
+ info("%s - nonzero urb status %d", __func__, urb->status);
break;
}
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval) {
err("%s - failed resubmitting intr urb, error %d",
- __FUNCTION__, retval);
+ __func__, retval);
}
spin_unlock_irqrestore(&card->slock, flags);
@@ -746,18 +717,16 @@ static void cpcusb_read_interrupt_callback(struct urb *urb
#define UN_SHIFT 1
#define CPCMSG_HEADER_LEN_FIRMWARE 11
-static int inline cpcusb_unalign_and_copy_buffy(unsigned char *out,
- unsigned char *in)
+static inline int cpcusb_unalign_and_copy_buffy(unsigned char *out,
+ unsigned char *in)
{
unsigned int i, j;
- for (i = 0; i < 3; i++) {
+ for (i = 0; i < 3; i++)
out[i] = in[i];
- }
- for (j = 0; j < (in[1] + (CPCMSG_HEADER_LEN_FIRMWARE - 3)); j++) {
+ for (j = 0; j < (in[1] + (CPCMSG_HEADER_LEN_FIRMWARE - 3)); j++)
out[j + i + UN_SHIFT] = in[j + i];
- }
return i + j;
}
@@ -765,11 +734,7 @@ static int inline cpcusb_unalign_and_copy_buffy(unsigned char *out,
/*
* callback for bulk IN urb
*/
-static void cpcusb_read_bulk_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-)
+static void cpcusb_read_bulk_callback(struct urb *urb)
{
CPC_USB_T *card = (CPC_USB_T *) urb->context;
CPC_CHAN_T *chan;
@@ -778,7 +743,7 @@ static void cpcusb_read_bulk_callback(struct urb *urb
unsigned long flags;
if (!card) {
- err("%s - device object lost", __FUNCTION__);
+ err("%s - device object lost", __func__);
return;
}
@@ -786,7 +751,7 @@ static void cpcusb_read_bulk_callback(struct urb *urb
if (!card->present) {
spin_unlock_irqrestore(&card->slock, flags);
- info("%s - no such device", __FUNCTION__);
+ info("%s - no such device", __func__);
return;
}
@@ -798,10 +763,10 @@ static void cpcusb_read_bulk_callback(struct urb *urb
case -ESHUTDOWN:
/* urb was killed */
spin_unlock_irqrestore(&card->slock, flags);
- dbg("%s - read urb killed", __FUNCTION__);
+ dbg("%s - read urb killed", __func__);
return;
default:
- info("%s - nonzero urb status %d", __FUNCTION__, urb->status);
+ info("%s - nonzero urb status %d", __func__, urb->status);
break;
}
@@ -833,15 +798,15 @@ static void cpcusb_read_bulk_callback(struct urb *urb
}
usb_fill_bulk_urb(urb, card->udev,
- usb_rcvbulkpipe(card->udev, card->num_bulk_in),
- urb->transfer_buffer,
- urb->transfer_buffer_length,
- cpcusb_read_bulk_callback, card);
+ usb_rcvbulkpipe(card->udev, card->num_bulk_in),
+ urb->transfer_buffer,
+ urb->transfer_buffer_length,
+ cpcusb_read_bulk_callback, card);
retval = usb_submit_urb(urb, GFP_ATOMIC);
if (retval) {
- err("%s - failed resubmitting read urb, error %d", __FUNCTION__, retval);
+ err("%s - failed resubmitting read urb, error %d", __func__, retval);
}
spin_unlock_irqrestore(&card->slock, flags);
@@ -852,11 +817,7 @@ static void cpcusb_read_bulk_callback(struct urb *urb
/*
* callback for bulk IN urb
*/
-static void cpcusb_write_bulk_callback(struct urb *urb
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19))
- , struct pt_regs *regs
-#endif
-)
+static void cpcusb_write_bulk_callback(struct urb *urb)
{
CPC_USB_T *card = (CPC_USB_T *) urb->context;
unsigned long flags;
@@ -883,10 +844,10 @@ static void cpcusb_write_bulk_callback(struct urb *urb
case -ESHUTDOWN:
/* urb was killed */
spin_unlock_irqrestore(&card->slock, flags);
- dbg("%s - write urb no. %d killed", __FUNCTION__, j);
+ dbg("%s - write urb no. %d killed", __func__, j);
return;
default:
- info("%s - nonzero urb status %d", __FUNCTION__, urb->status);
+ info("%s - nonzero urb status %d", __func__, urb->status);
break;
}
@@ -911,7 +872,7 @@ static inline int cpcusb_get_free_slot(void)
* probe function for new CPC-USB devices
*/
static int cpcusb_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
+ const struct usb_device_id *id)
{
CPC_USB_T *card = NULL;
CPC_CHAN_T *chan = NULL;
@@ -922,7 +883,8 @@ static int cpcusb_probe(struct usb_interface *interface,
int i, j, retval = -ENOMEM, slot;
- if ((slot = cpcusb_get_free_slot()) < 0) {
+ slot = cpcusb_get_free_slot();
+ if (slot < 0) {
info("No more devices supported");
return -ENOMEM;
}
@@ -961,7 +923,7 @@ static int cpcusb_probe(struct usb_interface *interface,
card->productId = udev->descriptor.idProduct;
info("Product %s",
card->productId == USB_CPCUSB_LPC2119_PRODUCT_ID ?
- "CPC-USB/ARM7" : "CPC-USB/M16C");
+ "CPC-USB/ARM7" : "CPC-USB/M16C");
/* set up the endpoint information */
/* check out the endpoints */
@@ -1008,7 +970,7 @@ static int cpcusb_probe(struct usb_interface *interface,
}
}
info("%s - %d reading URB's allocated",
- __FUNCTION__, CPC_USB_URB_CNT);
+ __func__, CPC_USB_URB_CNT);
}
if (!card->num_bulk_out &&
@@ -1028,8 +990,8 @@ static int cpcusb_probe(struct usb_interface *interface,
goto error;
}
card->wrUrbs[j].buffer = usb_buffer_alloc(udev,
- card->wrUrbs[j].size, GFP_KERNEL,
- &card->wrUrbs[j].urb->transfer_dma);
+ card->wrUrbs[j].size, GFP_KERNEL,
+ &card->wrUrbs[j].urb->transfer_dma);
if (!card->wrUrbs[j].buffer) {
err("Couldn't allocate bulk_out_buffer");
@@ -1044,7 +1006,7 @@ static int cpcusb_probe(struct usb_interface *interface,
card);
}
- info("%s - %d writing URB's allocated", __FUNCTION__, CPC_USB_URB_CNT);
+ info("%s - %d writing URB's allocated", __func__, CPC_USB_URB_CNT);
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-01 22:22:21 +0000