HCS_INDICATOR (params) ? " ind" : "",
HCS_N_CC (params),
HCS_N_PCC (params),
- HCS_PORTROUTED (params) ? "" : " ordered",
+ HCS_PORTROUTED (params) ? "" : " ordered",
HCS_PPC (params) ? "" : " !ppc",
HCS_N_PORTS (params)
);
if (HCC_ISOC_CACHE (params)) {
ehci_dbg (ehci,
- "%s hcc_params %04x caching frame %s%s%s\n",
- label, params,
- HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024",
- HCC_CANPARK (params) ? " park" : "",
- HCC_64BIT_ADDR (params) ? " 64 bit addr" : "");
+ "%s hcc_params %04x caching frame %s%s%s\n",
+ label, params,
+ HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
+ HCC_CANPARK(params) ? " park" : "",
+ HCC_64BIT_ADDR(params) ? " 64 bit addr" : "");
} else {
ehci_dbg (ehci,
- "%s hcc_params %04x thresh %d uframes %s%s%s\n",
- label,
- params,
- HCC_ISOC_THRES (params),
- HCC_PGM_FRAMELISTLEN (params) ? "256/512/1024" : "1024",
- HCC_CANPARK (params) ? " park" : "",
- HCC_64BIT_ADDR (params) ? " 64 bit addr" : "");
+ "%s hcc_params %04x thresh %d uframes %s%s%s\n",
+ label,
+ params,
+ HCC_ISOC_THRES(params),
+ HCC_PGM_FRAMELISTLEN(params) ? "256/512/1024" : "1024",
+ HCC_CANPARK(params) ? " park" : "",
+ HCC_64BIT_ADDR(params) ? " 64 bit addr" : "");
}
}
#else
#ifdef DEBUG
-static void __attribute__((__unused__))
+static void __maybe_unused
dbg_qtd (const char *label, struct ehci_hcd *ehci, struct ehci_qtd *qtd)
{
- ehci_dbg (ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd,
- le32_to_cpup (&qtd->hw_next),
- le32_to_cpup (&qtd->hw_alt_next),
- le32_to_cpup (&qtd->hw_token),
- le32_to_cpup (&qtd->hw_buf [0]));
+ ehci_dbg(ehci, "%s td %p n%08x %08x t%08x p0=%08x\n", label, qtd,
+ hc32_to_cpup(ehci, &qtd->hw_next),
+ hc32_to_cpup(ehci, &qtd->hw_alt_next),
+ hc32_to_cpup(ehci, &qtd->hw_token),
+ hc32_to_cpup(ehci, &qtd->hw_buf [0]));
if (qtd->hw_buf [1])
- ehci_dbg (ehci, " p1=%08x p2=%08x p3=%08x p4=%08x\n",
- le32_to_cpup (&qtd->hw_buf [1]),
- le32_to_cpup (&qtd->hw_buf [2]),
- le32_to_cpup (&qtd->hw_buf [3]),
- le32_to_cpup (&qtd->hw_buf [4]));
+ ehci_dbg(ehci, " p1=%08x p2=%08x p3=%08x p4=%08x\n",
+ hc32_to_cpup(ehci, &qtd->hw_buf[1]),
+ hc32_to_cpup(ehci, &qtd->hw_buf[2]),
+ hc32_to_cpup(ehci, &qtd->hw_buf[3]),
+ hc32_to_cpup(ehci, &qtd->hw_buf[4]));
}
-static void __attribute__((__unused__))
+static void __maybe_unused
dbg_qh (const char *label, struct ehci_hcd *ehci, struct ehci_qh *qh)
{
ehci_dbg (ehci, "%s qh %p n%08x info %x %x qtd %x\n", label,
dbg_qtd ("overlay", ehci, (struct ehci_qtd *) &qh->hw_qtd_next);
}
-static void __attribute__((__unused__))
+static void __maybe_unused
dbg_itd (const char *label, struct ehci_hcd *ehci, struct ehci_itd *itd)
{
ehci_dbg (ehci, "%s [%d] itd %p, next %08x, urb %p\n",
- label, itd->frame, itd, le32_to_cpu(itd->hw_next), itd->urb);
+ label, itd->frame, itd, hc32_to_cpu(ehci, itd->hw_next),
+ itd->urb);
ehci_dbg (ehci,
" trans: %08x %08x %08x %08x %08x %08x %08x %08x\n",
- le32_to_cpu(itd->hw_transaction[0]),
- le32_to_cpu(itd->hw_transaction[1]),
- le32_to_cpu(itd->hw_transaction[2]),
- le32_to_cpu(itd->hw_transaction[3]),
- le32_to_cpu(itd->hw_transaction[4]),
- le32_to_cpu(itd->hw_transaction[5]),
- le32_to_cpu(itd->hw_transaction[6]),
- le32_to_cpu(itd->hw_transaction[7]));
+ hc32_to_cpu(ehci, itd->hw_transaction[0]),
+ hc32_to_cpu(ehci, itd->hw_transaction[1]),
+ hc32_to_cpu(ehci, itd->hw_transaction[2]),
+ hc32_to_cpu(ehci, itd->hw_transaction[3]),
+ hc32_to_cpu(ehci, itd->hw_transaction[4]),
+ hc32_to_cpu(ehci, itd->hw_transaction[5]),
+ hc32_to_cpu(ehci, itd->hw_transaction[6]),
+ hc32_to_cpu(ehci, itd->hw_transaction[7]));
ehci_dbg (ehci,
" buf: %08x %08x %08x %08x %08x %08x %08x\n",
- le32_to_cpu(itd->hw_bufp[0]),
- le32_to_cpu(itd->hw_bufp[1]),
- le32_to_cpu(itd->hw_bufp[2]),
- le32_to_cpu(itd->hw_bufp[3]),
- le32_to_cpu(itd->hw_bufp[4]),
- le32_to_cpu(itd->hw_bufp[5]),
- le32_to_cpu(itd->hw_bufp[6]));
+ hc32_to_cpu(ehci, itd->hw_bufp[0]),
+ hc32_to_cpu(ehci, itd->hw_bufp[1]),
+ hc32_to_cpu(ehci, itd->hw_bufp[2]),
+ hc32_to_cpu(ehci, itd->hw_bufp[3]),
+ hc32_to_cpu(ehci, itd->hw_bufp[4]),
+ hc32_to_cpu(ehci, itd->hw_bufp[5]),
+ hc32_to_cpu(ehci, itd->hw_bufp[6]));
ehci_dbg (ehci, " index: %d %d %d %d %d %d %d %d\n",
itd->index[0], itd->index[1], itd->index[2],
itd->index[3], itd->index[4], itd->index[5],
itd->index[6], itd->index[7]);
}
-static void __attribute__((__unused__))
+static void __maybe_unused
dbg_sitd (const char *label, struct ehci_hcd *ehci, struct ehci_sitd *sitd)
{
ehci_dbg (ehci, "%s [%d] sitd %p, next %08x, urb %p\n",
- label, sitd->frame, sitd, le32_to_cpu(sitd->hw_next), sitd->urb);
+ label, sitd->frame, sitd, hc32_to_cpu(ehci, sitd->hw_next),
+ sitd->urb);
ehci_dbg (ehci,
" addr %08x sched %04x result %08x buf %08x %08x\n",
- le32_to_cpu(sitd->hw_fullspeed_ep),
- le32_to_cpu(sitd->hw_uframe),
- le32_to_cpu(sitd->hw_results),
- le32_to_cpu(sitd->hw_buf [0]),
- le32_to_cpu(sitd->hw_buf [1]));
+ hc32_to_cpu(ehci, sitd->hw_fullspeed_ep),
+ hc32_to_cpu(ehci, sitd->hw_uframe),
+ hc32_to_cpu(ehci, sitd->hw_results),
+ hc32_to_cpu(ehci, sitd->hw_buf[0]),
+ hc32_to_cpu(ehci, sitd->hw_buf[1]));
}
-static int __attribute__((__unused__))
+static int __maybe_unused
dbg_status_buf (char *buf, unsigned len, const char *label, u32 status)
{
return scnprintf (buf, len,
);
}
-static int __attribute__((__unused__))
+static int __maybe_unused
dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable)
{
return scnprintf (buf, len,
(status & PORT_PEC) ? " PEC" : "",
(status & PORT_PE) ? " PE" : "",
(status & PORT_CSC) ? " CSC" : "",
- (status & PORT_CONNECT) ? " CONNECT" : ""
- );
+ (status & PORT_CONNECT) ? " CONNECT" : "");
}
#else
-static inline void __attribute__((__unused__))
+static inline void __maybe_unused
dbg_qh (char *label, struct ehci_hcd *ehci, struct ehci_qh *qh)
{}
-static inline int __attribute__((__unused__))
+static inline int __maybe_unused
dbg_status_buf (char *buf, unsigned len, const char *label, u32 status)
{ return 0; }
-static inline int __attribute__((__unused__))
+static inline int __maybe_unused
dbg_command_buf (char *buf, unsigned len, const char *label, u32 command)
{ return 0; }
-static inline int __attribute__((__unused__))
+static inline int __maybe_unused
dbg_intr_buf (char *buf, unsigned len, const char *label, u32 enable)
{ return 0; }
-static inline int __attribute__((__unused__))
+static inline int __maybe_unused
dbg_port_buf (char *buf, unsigned len, const char *label, int port, u32 status)
{ return 0; }
#else
-/* troubleshooting help: expose state in sysfs */
+/* troubleshooting help: expose state in debugfs */
+
+static int debug_async_open(struct inode *, struct file *);
+static int debug_periodic_open(struct inode *, struct file *);
+static int debug_registers_open(struct inode *, struct file *);
+static int debug_async_open(struct inode *, struct file *);
+static ssize_t debug_output(struct file*, char __user*, size_t, loff_t*);
+static int debug_close(struct inode *, struct file *);
+
+static const struct file_operations debug_async_fops = {
+ .owner = THIS_MODULE,
+ .open = debug_async_open,
+ .read = debug_output,
+ .release = debug_close,
+};
+static const struct file_operations debug_periodic_fops = {
+ .owner = THIS_MODULE,
+ .open = debug_periodic_open,
+ .read = debug_output,
+ .release = debug_close,
+};
+static const struct file_operations debug_registers_fops = {
+ .owner = THIS_MODULE,
+ .open = debug_registers_open,
+ .read = debug_output,
+ .release = debug_close,
+};
+
+static struct dentry *ehci_debug_root;
+
+struct debug_buffer {
+ ssize_t (*fill_func)(struct debug_buffer *); /* fill method */
+ struct usb_bus *bus;
+ struct mutex mutex; /* protect filling of buffer */
+ size_t count; /* number of characters filled into buffer */
+ char *page;
+};
#define speed_char(info1) ({ char tmp; \
switch (info1 & (3 << 12)) { \
default: tmp = '?'; break; \
}; tmp; })
-static inline char token_mark (__le32 token)
+static inline char token_mark(struct ehci_hcd *ehci, __hc32 token)
{
- __u32 v = le32_to_cpu (token);
+ __u32 v = hc32_to_cpu(ehci, token);
+
if (v & QTD_STS_ACTIVE)
return '*';
if (v & QTD_STS_HALT)
unsigned size = *sizep;
char *next = *nextp;
char mark;
+ u32 list_end = EHCI_LIST_END(ehci);
- if (qh->hw_qtd_next == EHCI_LIST_END) /* NEC does this */
+ if (qh->hw_qtd_next == list_end) /* NEC does this */
mark = '@';
else
- mark = token_mark (qh->hw_token);
+ mark = token_mark(ehci, qh->hw_token);
if (mark == '/') { /* qh_alt_next controls qh advance? */
- if ((qh->hw_alt_next & QTD_MASK) == ehci->async->hw_alt_next)
+ if ((qh->hw_alt_next & QTD_MASK(ehci))
+ == ehci->async->hw_alt_next)
mark = '#'; /* blocked */
- else if (qh->hw_alt_next == EHCI_LIST_END)
+ else if (qh->hw_alt_next == list_end)
mark = '.'; /* use hw_qtd_next */
/* else alt_next points to some other qtd */
}
- scratch = le32_to_cpup (&qh->hw_info1);
- hw_curr = (mark == '*') ? le32_to_cpup (&qh->hw_current) : 0;
+ scratch = hc32_to_cpup(ehci, &qh->hw_info1);
+ hw_curr = (mark == '*') ? hc32_to_cpup(ehci, &qh->hw_current) : 0;
temp = scnprintf (next, size,
"qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)",
qh, scratch & 0x007f,
speed_char (scratch),
(scratch >> 8) & 0x000f,
- scratch, le32_to_cpup (&qh->hw_info2),
- le32_to_cpup (&qh->hw_token), mark,
- (__constant_cpu_to_le32 (QTD_TOGGLE) & qh->hw_token)
+ scratch, hc32_to_cpup(ehci, &qh->hw_info2),
+ hc32_to_cpup(ehci, &qh->hw_token), mark,
+ (cpu_to_hc32(ehci, QTD_TOGGLE) & qh->hw_token)
? "data1" : "data0",
- (le32_to_cpup (&qh->hw_alt_next) >> 1) & 0x0f);
+ (hc32_to_cpup(ehci, &qh->hw_alt_next) >> 1) & 0x0f);
size -= temp;
next += temp;
/* hc may be modifying the list as we read it ... */
list_for_each (entry, &qh->qtd_list) {
td = list_entry (entry, struct ehci_qtd, qtd_list);
- scratch = le32_to_cpup (&td->hw_token);
+ scratch = hc32_to_cpup(ehci, &td->hw_token);
mark = ' ';
if (hw_curr == td->qtd_dma)
mark = '*';
- else if (qh->hw_qtd_next == cpu_to_le32(td->qtd_dma))
+ else if (qh->hw_qtd_next == cpu_to_hc32(ehci, td->qtd_dma))
mark = '+';
else if (QTD_LENGTH (scratch)) {
if (td->hw_alt_next == ehci->async->hw_alt_next)
mark = '#';
- else if (td->hw_alt_next != EHCI_LIST_END)
+ else if (td->hw_alt_next != list_end)
mark = '/';
}
temp = snprintf (next, size,
*nextp = next;
}
-static ssize_t
-show_async (struct class_device *class_dev, char *buf)
+static ssize_t fill_async_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
unsigned long flags;
char *next;
struct ehci_qh *qh;
- *buf = 0;
-
- bus = class_get_devdata(class_dev);
- hcd = bus_to_hcd(bus);
+ hcd = bus_to_hcd(buf->bus);
ehci = hcd_to_ehci (hcd);
- next = buf;
+ next = buf->page;
size = PAGE_SIZE;
+ *next = 0;
+
/* dumps a snapshot of the async schedule.
* usually empty except for long-term bulk reads, or head.
* one QH per line, and TDs we know about
}
spin_unlock_irqrestore (&ehci->lock, flags);
- return strlen (buf);
+ return strlen(buf->page);
}
-static CLASS_DEVICE_ATTR (async, S_IRUGO, show_async, NULL);
#define DBG_SCHED_LIMIT 64
-
-static ssize_t
-show_periodic (struct class_device *class_dev, char *buf)
+static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
unsigned long flags;
unsigned temp, size, seen_count;
char *next;
unsigned i;
- __le32 tag;
+ __hc32 tag;
if (!(seen = kmalloc (DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
return 0;
seen_count = 0;
- bus = class_get_devdata(class_dev);
- hcd = bus_to_hcd(bus);
+ hcd = bus_to_hcd(buf->bus);
ehci = hcd_to_ehci (hcd);
- next = buf;
+ next = buf->page;
size = PAGE_SIZE;
temp = scnprintf (next, size, "size = %d\n", ehci->periodic_size);
p = ehci->pshadow [i];
if (likely (!p.ptr))
continue;
- tag = Q_NEXT_TYPE (ehci->periodic [i]);
+ tag = Q_NEXT_TYPE(ehci, ehci->periodic [i]);
temp = scnprintf (next, size, "%4d: ", i);
size -= temp;
next += temp;
do {
- switch (tag) {
+ switch (hc32_to_cpu(ehci, tag)) {
case Q_TYPE_QH:
temp = scnprintf (next, size, " qh%d-%04x/%p",
p.qh->period,
- le32_to_cpup (&p.qh->hw_info2)
+ hc32_to_cpup(ehci,
+ &p.qh->hw_info2)
/* uframe masks */
& (QH_CMASK | QH_SMASK),
p.qh);
}
/* show more info the first time around */
if (temp == seen_count && p.ptr) {
- u32 scratch = le32_to_cpup (
+ u32 scratch = hc32_to_cpup(ehci,
&p.qh->hw_info1);
struct ehci_qtd *qtd;
char *type = "";
&p.qh->qtd_list,
qtd_list) {
temp++;
- switch (0x03 & (le32_to_cpu (
+ switch (0x03 & (hc32_to_cpu(
+ ehci,
qtd->hw_token) >> 8)) {
case 0: type = "out"; continue;
case 1: type = "in"; continue;
} else
temp = 0;
if (p.qh) {
- tag = Q_NEXT_TYPE (p.qh->hw_next);
+ tag = Q_NEXT_TYPE(ehci, p.qh->hw_next);
p = p.qh->qh_next;
}
break;
temp = scnprintf (next, size,
" fstn-%8x/%p", p.fstn->hw_prev,
p.fstn);
- tag = Q_NEXT_TYPE (p.fstn->hw_next);
+ tag = Q_NEXT_TYPE(ehci, p.fstn->hw_next);
p = p.fstn->fstn_next;
break;
case Q_TYPE_ITD:
temp = scnprintf (next, size,
" itd/%p", p.itd);
- tag = Q_NEXT_TYPE (p.itd->hw_next);
+ tag = Q_NEXT_TYPE(ehci, p.itd->hw_next);
p = p.itd->itd_next;
break;
case Q_TYPE_SITD:
temp = scnprintf (next, size,
" sitd%d-%04x/%p",
p.sitd->stream->interval,
- le32_to_cpup (&p.sitd->hw_uframe)
+ hc32_to_cpup(ehci, &p.sitd->hw_uframe)
& 0x0000ffff,
p.sitd);
- tag = Q_NEXT_TYPE (p.sitd->hw_next);
+ tag = Q_NEXT_TYPE(ehci, p.sitd->hw_next);
p = p.sitd->sitd_next;
break;
}
return PAGE_SIZE - size;
}
-static CLASS_DEVICE_ATTR (periodic, S_IRUGO, show_periodic, NULL);
-
#undef DBG_SCHED_LIMIT
-static ssize_t
-show_registers (struct class_device *class_dev, char *buf)
+static ssize_t fill_registers_buffer(struct debug_buffer *buf)
{
- struct usb_bus *bus;
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
unsigned long flags;
static char fmt [] = "%*s\n";
static char label [] = "";
- bus = class_get_devdata(class_dev);
- hcd = bus_to_hcd(bus);
+ hcd = bus_to_hcd(buf->bus);
ehci = hcd_to_ehci (hcd);
- next = buf;
+ next = buf->page;
size = PAGE_SIZE;
spin_lock_irqsave (&ehci->lock, flags);
- if (bus->controller->power.power_state.event) {
+ if (buf->bus->controller->power.power_state.event) {
size = scnprintf (next, size,
"bus %s, device %s (driver " DRIVER_VERSION ")\n"
"%s\n"
unsigned count = 256/4;
pdev = to_pci_dev(ehci_to_hcd(ehci)->self.controller);
- offset = HCC_EXT_CAPS (ehci_readl(ehci, &ehci->caps->hcc_params));
+ offset = HCC_EXT_CAPS(ehci_readl(ehci,
+ &ehci->caps->hcc_params));
while (offset && count--) {
pci_read_config_dword (pdev, offset, &cap);
switch (cap & 0xff) {
for (i = 1; i <= HCS_N_PORTS (ehci->hcs_params); i++) {
temp = dbg_port_buf (scratch, sizeof scratch, label, i,
- ehci_readl(ehci, &ehci->regs->port_status [i - 1]));
+ ehci_readl(ehci,
+ &ehci->regs->port_status[i - 1]));
temp = scnprintf (next, size, fmt, temp, scratch);
size -= temp;
next += temp;
if (i == HCS_DEBUG_PORT(ehci->hcs_params) && ehci->debug) {
temp = scnprintf (next, size,
" debug control %08x\n",
- ehci_readl(ehci, &ehci->debug->control));
+ ehci_readl(ehci,
+ &ehci->debug->control));
size -= temp;
next += temp;
}
}
if (ehci->reclaim) {
- temp = scnprintf (next, size, "reclaim qh %p%s\n",
- ehci->reclaim,
- ehci->reclaim_ready ? " ready" : "");
+ temp = scnprintf(next, size, "reclaim qh %p\n", ehci->reclaim);
size -= temp;
next += temp;
}
return PAGE_SIZE - size;
}
-static CLASS_DEVICE_ATTR (registers, S_IRUGO, show_registers, NULL);
-static inline void create_debug_files (struct ehci_hcd *ehci)
+static struct debug_buffer *alloc_buffer(struct usb_bus *bus,
+ ssize_t (*fill_func)(struct debug_buffer *))
{
- struct class_device *cldev = ehci_to_hcd(ehci)->self.class_dev;
- int retval;
+ struct debug_buffer *buf;
+
+ buf = kzalloc(sizeof(struct debug_buffer), GFP_KERNEL);
- retval = class_device_create_file(cldev, &class_device_attr_async);
- retval = class_device_create_file(cldev, &class_device_attr_periodic);
- retval = class_device_create_file(cldev, &class_device_attr_registers);
+ if (buf) {
+ buf->bus = bus;
+ buf->fill_func = fill_func;
+ mutex_init(&buf->mutex);
+ }
+
+ return buf;
}
-static inline void remove_debug_files (struct ehci_hcd *ehci)
+static int fill_buffer(struct debug_buffer *buf)
{
- struct class_device *cldev = ehci_to_hcd(ehci)->self.class_dev;
+ int ret = 0;
+
+ if (!buf->page)
+ buf->page = (char *)get_zeroed_page(GFP_KERNEL);
+
+ if (!buf->page) {
+ ret = -ENOMEM;
+ goto out;
+ }
- class_device_remove_file(cldev, &class_device_attr_async);
- class_device_remove_file(cldev, &class_device_attr_periodic);
- class_device_remove_file(cldev, &class_device_attr_registers);
+ ret = buf->fill_func(buf);
+
+ if (ret >= 0) {
+ buf->count = ret;
+ ret = 0;
+ }
+
+out:
+ return ret;
}
-#endif /* STUB_DEBUG_FILES */
+static ssize_t debug_output(struct file *file, char __user *user_buf,
+ size_t len, loff_t *offset)
+{
+ struct debug_buffer *buf = file->private_data;
+ int ret = 0;
+
+ mutex_lock(&buf->mutex);
+ if (buf->count == 0) {
+ ret = fill_buffer(buf);
+ if (ret != 0) {
+ mutex_unlock(&buf->mutex);
+ goto out;
+ }
+ }
+ mutex_unlock(&buf->mutex);
+
+ ret = simple_read_from_buffer(user_buf, len, offset,
+ buf->page, buf->count);
+
+out:
+ return ret;
+
+}
+
+static int debug_close(struct inode *inode, struct file *file)
+{
+ struct debug_buffer *buf = file->private_data;
+
+ if (buf) {
+ if (buf->page)
+ free_page((unsigned long)buf->page);
+ kfree(buf);
+ }
+ return 0;
+}
+static int debug_async_open(struct inode *inode, struct file *file)
+{
+ file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
+
+ return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_periodic_open(struct inode *inode, struct file *file)
+{
+ file->private_data = alloc_buffer(inode->i_private,
+ fill_periodic_buffer);
+
+ return file->private_data ? 0 : -ENOMEM;
+}
+
+static int debug_registers_open(struct inode *inode, struct file *file)
+{
+ file->private_data = alloc_buffer(inode->i_private,
+ fill_registers_buffer);
+
+ return file->private_data ? 0 : -ENOMEM;
+}
+
+static inline void create_debug_files (struct ehci_hcd *ehci)
+{
+ struct usb_bus *bus = &ehci_to_hcd(ehci)->self;
+
+ ehci->debug_dir = debugfs_create_dir(bus->bus_name, ehci_debug_root);
+ if (!ehci->debug_dir)
+ goto dir_error;
+
+ ehci->debug_async = debugfs_create_file("async", S_IRUGO,
+ ehci->debug_dir, bus,
+ &debug_async_fops);
+ if (!ehci->debug_async)
+ goto async_error;
+
+ ehci->debug_periodic = debugfs_create_file("periodic", S_IRUGO,
+ ehci->debug_dir, bus,
+ &debug_periodic_fops);
+ if (!ehci->debug_periodic)
+ goto periodic_error;
+
+ ehci->debug_registers = debugfs_create_file("registers", S_IRUGO,
+ ehci->debug_dir, bus,
+ &debug_registers_fops);
+ if (!ehci->debug_registers)
+ goto registers_error;
+ return;
+
+registers_error:
+ debugfs_remove(ehci->debug_periodic);
+periodic_error:
+ debugfs_remove(ehci->debug_async);
+async_error:
+ debugfs_remove(ehci->debug_dir);
+dir_error:
+ ehci->debug_periodic = NULL;
+ ehci->debug_async = NULL;
+ ehci->debug_dir = NULL;
+}
+
+static inline void remove_debug_files (struct ehci_hcd *ehci)
+{
+ debugfs_remove(ehci->debug_registers);
+ debugfs_remove(ehci->debug_periodic);
+ debugfs_remove(ehci->debug_async);
+ debugfs_remove(ehci->debug_dir);
+}
+
+#endif /* STUB_DEBUG_FILES */
git.openpandora.org / pandora-kernel.git / blobdiff