Release 4.11 drivers/net/wireless/ralink/rt2x00/rt2x00debug.c

/*
        Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
        <http://rt2x00.serialmonkey.com>

        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.

        You should have received a copy of the GNU General Public License
        along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

/*
        Module: rt2x00lib
        Abstract: rt2x00 debugfs specific routines.
 */

#include <linux/debugfs.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/poll.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/uaccess.h>

#include "rt2x00.h"
#include "rt2x00lib.h"
#include "rt2x00dump.h"


#define MAX_LINE_LENGTH 64


struct rt2x00debug_crypto {
	
unsigned long success;
	
unsigned long icv_error;
	
unsigned long mic_error;
	
unsigned long key_error;
};


struct rt2x00debug_intf {
	/*
         * Pointer to driver structure where
         * this debugfs entry belongs to.
         */
	
struct rt2x00_dev *rt2x00dev;

	/*
         * Reference to the rt2x00debug structure
         * which can be used to communicate with
         * the registers.
         */
	
const struct rt2x00debug *debug;

	/*
         * Debugfs entries for:
         * - driver folder
         *   - driver file
         *   - chipset file
         *   - device state flags file
         *   - device capability flags file
         *   - register folder
         *     - csr offset/value files
         *     - eeprom offset/value files
         *     - bbp offset/value files
         *     - rf offset/value files
         *     - rfcsr offset/value files
         *   - queue folder
         *     - frame dump file
         *     - queue stats file
         *     - crypto stats file
         */
	
struct dentry *driver_folder;
	
struct dentry *driver_entry;
	
struct dentry *chipset_entry;
	
struct dentry *dev_flags;
	
struct dentry *cap_flags;
	
struct dentry *register_folder;
	
struct dentry *csr_off_entry;
	
struct dentry *csr_val_entry;
	
struct dentry *eeprom_off_entry;
	
struct dentry *eeprom_val_entry;
	
struct dentry *bbp_off_entry;
	
struct dentry *bbp_val_entry;
	
struct dentry *rf_off_entry;
	
struct dentry *rf_val_entry;
	
struct dentry *rfcsr_off_entry;
	
struct dentry *rfcsr_val_entry;
	
struct dentry *queue_folder;
	
struct dentry *queue_frame_dump_entry;
	
struct dentry *queue_stats_entry;
	
struct dentry *crypto_stats_entry;

	/*
         * The frame dump file only allows a single reader,
         * so we need to store the current state here.
         */
	
unsigned long frame_dump_flags;

#define FRAME_DUMP_FILE_OPEN	1

	/*
         * We queue each frame before dumping it to the user,
         * per read command we will pass a single skb structure
         * so we should be prepared to queue multiple sk buffers
         * before sending it to userspace.
         */
	
struct sk_buff_head frame_dump_skbqueue;
	
wait_queue_head_t frame_dump_waitqueue;

	/*
         * HW crypto statistics.
         * All statistics are stored separately per cipher type.
         */
	
struct rt2x00debug_crypto crypto_stats[CIPHER_MAX];

	/*
         * Driver and chipset files will use a data buffer
         * that has been created in advance. This will simplify
         * the code since we can use the debugfs functions.
         */
	
struct debugfs_blob_wrapper driver_blob;
	
struct debugfs_blob_wrapper chipset_blob;

	/*
         * Requested offset for each register type.
         */
	
unsigned int offset_csr;
	
unsigned int offset_eeprom;
	
unsigned int offset_bbp;
	
unsigned int offset_rf;
	
unsigned int offset_rfcsr;
};



void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
			       struct rxdone_entry_desc *rxdesc)
{
	struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
	enum cipher cipher = rxdesc->cipher;
	enum rx_crypto status = rxdesc->cipher_status;

	if (cipher == CIPHER_TKIP_NO_MIC)
		cipher = CIPHER_TKIP;
	if (cipher == CIPHER_NONE || cipher >= CIPHER_MAX)
		return;

	/* Remove CIPHER_NONE index */
	cipher--;

	intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS);
	intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV);
	intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC);
	intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY);
}

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void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
			    enum rt2x00_dump_type type, struct queue_entry *entry)
{
	struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
	struct sk_buff *skb = entry->skb;
	struct skb_frame_desc *skbdesc = get_skb_frame_desc(skb);
	struct sk_buff *skbcopy;
	struct rt2x00dump_hdr *dump_hdr;
	struct timeval timestamp;
	u32 data_len;

	if (likely(!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)))
		return;

	do_gettimeofday(&timestamp);

	if (skb_queue_len(&intf->frame_dump_skbqueue) > 20) {
		rt2x00_dbg(rt2x00dev, "txrx dump queue length exceeded\n");
		return;
	}

	data_len = skb->len;
	if (skbdesc->flags & SKBDESC_DESC_IN_SKB)
		data_len -= skbdesc->desc_len;

	skbcopy = alloc_skb(sizeof(*dump_hdr) + skbdesc->desc_len + data_len,
			    GFP_ATOMIC);
	if (!skbcopy) {
		rt2x00_dbg(rt2x00dev, "Failed to copy skb for dump\n");
		return;
	}

	dump_hdr = (struct rt2x00dump_hdr *)skb_put(skbcopy, sizeof(*dump_hdr));
	dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION);
	dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr));
	dump_hdr->desc_length = cpu_to_le32(skbdesc->desc_len);
	dump_hdr->data_length = cpu_to_le32(data_len);
	dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt);
	dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf);
	dump_hdr->chip_rev = cpu_to_le16(rt2x00dev->chip.rev);
	dump_hdr->type = cpu_to_le16(type);
	dump_hdr->queue_index = entry->queue->qid;
	dump_hdr->entry_index = entry->entry_idx;
	dump_hdr->timestamp_sec = cpu_to_le32(timestamp.tv_sec);
	dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec);

	if (!(skbdesc->flags & SKBDESC_DESC_IN_SKB))
		memcpy(skb_put(skbcopy, skbdesc->desc_len), skbdesc->desc,
		       skbdesc->desc_len);
	memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len);

	skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy);
	wake_up_interruptible(&intf->frame_dump_waitqueue);

	/*
         * Verify that the file has not been closed while we were working.
         */
	if (!test_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags))
		skb_queue_purge(&intf->frame_dump_skbqueue);
}
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EXPORT_SYMBOL_GPL(rt2x00debug_dump_frame);



static int rt2x00debug_file_open(struct inode *inode, struct file *file)
{
	struct rt2x00debug_intf *intf = inode->i_private;

	file->private_data = inode->i_private;

	if (!try_module_get(intf->debug->owner))
		return -EBUSY;

	return 0;
}

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static int rt2x00debug_file_release(struct inode *inode, struct file *file)
{
	struct rt2x00debug_intf *intf = file->private_data;

	module_put(intf->debug->owner);

	return 0;
}

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static int rt2x00debug_open_queue_dump(struct inode *inode, struct file *file)
{
	struct rt2x00debug_intf *intf = inode->i_private;
	int retval;

	retval = rt2x00debug_file_open(inode, file);
	if (retval)
		return retval;

	if (test_and_set_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags)) {
		rt2x00debug_file_release(inode, file);
		return -EBUSY;
	}

	return 0;
}

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static int rt2x00debug_release_queue_dump(struct inode *inode, struct file *file)
{
	struct rt2x00debug_intf *intf = inode->i_private;

	skb_queue_purge(&intf->frame_dump_skbqueue);

	clear_bit(FRAME_DUMP_FILE_OPEN, &intf->frame_dump_flags);

	return rt2x00debug_file_release(inode, file);
}

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static ssize_t rt2x00debug_read_queue_dump(struct file *file,
					   char __user *buf,
					   size_t length,
					   loff_t *offset)
{
	struct rt2x00debug_intf *intf = file->private_data;
	struct sk_buff *skb;
	size_t status;
	int retval;

	if (file->f_flags & O_NONBLOCK)
		return -EAGAIN;

	retval =
	    wait_event_interruptible(intf->frame_dump_waitqueue,
				     (skb =
				     skb_dequeue(&intf->frame_dump_skbqueue)));
	if (retval)
		return retval;

	status = min_t(size_t, skb->len, length);
	if (copy_to_user(buf, skb->data, status)) {
		status = -EFAULT;
		goto exit;
	}

	*offset += status;

exit:
	kfree_skb(skb);

	return status;
}

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static unsigned int rt2x00debug_poll_queue_dump(struct file *file,
						poll_table *wait)
{
	struct rt2x00debug_intf *intf = file->private_data;

	poll_wait(file, &intf->frame_dump_waitqueue, wait);

	if (!skb_queue_empty(&intf->frame_dump_skbqueue))
		return POLLOUT | POLLWRNORM;

	return 0;
}

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static const struct file_operations rt2x00debug_fop_queue_dump = {
	.owner		= THIS_MODULE,
	.read		= rt2x00debug_read_queue_dump,
	.poll		= rt2x00debug_poll_queue_dump,
	.open		= rt2x00debug_open_queue_dump,
	.release	= rt2x00debug_release_queue_dump,
	.llseek		= default_llseek,
};



static ssize_t rt2x00debug_read_queue_stats(struct file *file,
					    char __user *buf,
					    size_t length,
					    loff_t *offset)
{
	struct rt2x00debug_intf *intf = file->private_data;
	struct data_queue *queue;
	unsigned long irqflags;
	unsigned int lines = 1 + intf->rt2x00dev->data_queues;
	size_t size;
	char *data;
	char *temp;

	if (*offset)
		return 0;

	data = kcalloc(lines, MAX_LINE_LENGTH, GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	temp = data +
	    sprintf(data, "qid\tflags\t\tcount\tlimit\tlength\tindex\tdma done\tdone\n");

	queue_for_each(intf->rt2x00dev, queue) {
		spin_lock_irqsave(&queue->index_lock, irqflags);

		temp += sprintf(temp, "%d\t0x%.8x\t%d\t%d\t%d\t%d\t%d\t\t%d\n",
				queue->qid, (unsigned int)queue->flags,
				queue->count, queue->limit, queue->length,
				queue->index[Q_INDEX],
				queue->index[Q_INDEX_DMA_DONE],
				queue->index[Q_INDEX_DONE]);

		spin_unlock_irqrestore(&queue->index_lock, irqflags);
	}

	size = strlen(data);
	size = min(size, length);

	if (copy_to_user(buf, data, size)) {
		kfree(data);
		return -EFAULT;
	}

	kfree(data);

	*offset += size;
	return size;
}

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static const struct file_operations rt2x00debug_fop_queue_stats = {
	.owner		= THIS_MODULE,
	.read		= rt2x00debug_read_queue_stats,
	.open		= rt2x00debug_file_open,
	.release	= rt2x00debug_file_release,
	.llseek		= default_llseek,
};

#ifdef CONFIG_RT2X00_LIB_CRYPTO


static ssize_t rt2x00debug_read_crypto_stats(struct file *file,
					     char __user *buf,
					     size_t length,
					     loff_t *offset)
{
	struct rt2x00debug_intf *intf = file->private_data;
	static const char * const name[] = { "WEP64", "WEP128", "TKIP", "AES" };
	char *data;
	char *temp;
	size_t size;
	unsigned int i;

	if (*offset)
		return 0;

	data = kzalloc((1 + CIPHER_MAX) * MAX_LINE_LENGTH, GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	temp = data;
	temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n");

	for (i = 0; i < CIPHER_MAX; i++) {
		temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i],
				intf->crypto_stats[i].success,
				intf->crypto_stats[i].icv_error,
				intf->crypto_stats[i].mic_error,
				intf->crypto_stats[i].key_error);
	}

	size = strlen(data);
	size = min(size, length);

	if (copy_to_user(buf, data, size)) {
		kfree(data);
		return -EFAULT;
	}

	kfree(data);

	*offset += size;
	return size;
}

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static const struct file_operations rt2x00debug_fop_crypto_stats = {
	.owner		= THIS_MODULE,
	.read		= rt2x00debug_read_crypto_stats,
	.open		= rt2x00debug_file_open,
	.release	= rt2x00debug_file_release,
	.llseek		= default_llseek,
};
#endif


#define RT2X00DEBUGFS_OPS_READ(__name, __format, __type)	\
static ssize_t rt2x00debug_read_##__name(struct file *file,     \
                                         char __user *buf,      \
                                         size_t length,         \
                                         loff_t *offset)        \
{                                                               \
        struct rt2x00debug_intf *intf = file->private_data;     \
        const struct rt2x00debug *debug = intf->debug;          \
        char line[16];                                          \
        size_t size;                                            \
        unsigned int index = intf->offset_##__name;             \
        __type value;                                           \
                                                                \
        if (*offset)                                            \
                return 0;                                       \
                                                                \
        if (index >= debug->__name.word_count)                  \
                return -EINVAL;                                 \
                                                                \
        index += (debug->__name.word_base /                     \
                  debug->__name.word_size);                     \
                                                                \
        if (debug->__name.flags & RT2X00DEBUGFS_OFFSET)         \
                index *= debug->__name.word_size;               \
                                                                \
        debug->__name.read(intf->rt2x00dev, index, &value);     \
                                                                \
        size = sprintf(line, __format, value);                  \
                                                                \
        if (copy_to_user(buf, line, size))                      \
                return -EFAULT;                                 \
                                                                \
        *offset += size;                                        \
        return size;                                            \
}


#define RT2X00DEBUGFS_OPS_WRITE(__name, __type)			\
static ssize_t rt2x00debug_write_##__name(struct file *file,    \
                                          const char __user *buf,\
                                          size_t length,        \
                                          loff_t *offset)       \
{                                                               \
        struct rt2x00debug_intf *intf = file->private_data;     \
        const struct rt2x00debug *debug = intf->debug;          \
        char line[17];                                          \
        size_t size;                                            \
        unsigned int index = intf->offset_##__name;             \
        __type value;                                           \
                                                                \
        if (*offset)                                            \
                return 0;                                       \
                                                                \
        if (index >= debug->__name.word_count)                  \
                return -EINVAL;                                 \
                                                                \
        if (length > sizeof(line))                              \
                return -EINVAL;                                 \
                                                                \
        if (copy_from_user(line, buf, length))                  \
                return -EFAULT;                                 \
        line[16] = 0;                                           \
                                                \
        size = strlen(line);                                    \
        value = simple_strtoul(line, NULL, 0);                  \
                                                                \
        index += (debug->__name.word_base /                     \
                  debug->__name.word_size);                     \
                                                                \
        if (debug->__name.flags & RT2X00DEBUGFS_OFFSET)         \
                index *= debug->__name.word_size;               \
                                                                \
        debug->__name.write(intf->rt2x00dev, index, value);     \
                                                                \
        *offset += size;                                        \
        return size;                                            \
}


#define RT2X00DEBUGFS_OPS(__name, __format, __type)		\
RT2X00DEBUGFS_OPS_READ(__name, __format, __type);               \
RT2X00DEBUGFS_OPS_WRITE(__name, __type);                        \
                                                                \
static const struct file_operations rt2x00debug_fop_##__name = {\
        .owner          = THIS_MODULE,                          \
        .read           = rt2x00debug_read_##__name,            \
        .write          = rt2x00debug_write_##__name,           \
        .open           = rt2x00debug_file_open,                \
        .release        = rt2x00debug_file_release,             \
        .llseek         = generic_file_llseek,                  \
};

RT2X00DEBUGFS_OPS(csr, "0x%.8x\n", u32);
RT2X00DEBUGFS_OPS(eeprom, "0x%.4x\n", u16);
RT2X00DEBUGFS_OPS(bbp, "0x%.2x\n", u8);
RT2X00DEBUGFS_OPS(rf, "0x%.8x\n", u32);
RT2X00DEBUGFS_OPS(rfcsr, "0x%.2x\n", u8);



static ssize_t rt2x00debug_read_dev_flags(struct file *file,
					  char __user *buf,
					  size_t length,
					  loff_t *offset)
{
	struct rt2x00debug_intf *intf =	file->private_data;
	char line[16];
	size_t size;

	if (*offset)
		return 0;

	size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->flags);

	if (copy_to_user(buf, line, size))
		return -EFAULT;

	*offset += size;
	return size;
}

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static const struct file_operations rt2x00debug_fop_dev_flags = {
	.owner		= THIS_MODULE,
	.read		= rt2x00debug_read_dev_flags,
	.open		= rt2x00debug_file_open,
	.release	= rt2x00debug_file_release,
	.llseek		= default_llseek,
};



static ssize_t rt2x00debug_read_cap_flags(struct file *file,
					  char __user *buf,
					  size_t length,
					  loff_t *offset)
{
	struct rt2x00debug_intf *intf =	file->private_data;
	char line[16];
	size_t size;

	if (*offset)
		return 0;

	size = sprintf(line, "0x%.8x\n", (unsigned int)intf->rt2x00dev->cap_flags);

	if (copy_to_user(buf, line, size))
		return -EFAULT;

	*offset += size;
	return size;
}

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static const struct file_operations rt2x00debug_fop_cap_flags = {
	.owner		= THIS_MODULE,
	.read		= rt2x00debug_read_cap_flags,
	.open		= rt2x00debug_file_open,
	.release	= rt2x00debug_file_release,
	.llseek		= default_llseek,
};



static struct dentry *rt2x00debug_create_file_driver(const char *name,
						     struct rt2x00debug_intf
						     *intf,
						     struct debugfs_blob_wrapper
						     *blob)
{
	char *data;

	data = kzalloc(3 * MAX_LINE_LENGTH, GFP_KERNEL);
	if (!data)
		return NULL;

	blob->data = data;
	data += sprintf(data, "driver:\t%s\n", intf->rt2x00dev->ops->name);
	data += sprintf(data, "version:\t%s\n", DRV_VERSION);
	blob->size = strlen(blob->data);

	return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
}

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static struct dentry *rt2x00debug_create_file_chipset(const char *name,
						      struct rt2x00debug_intf
						      *intf,
						      struct
						      debugfs_blob_wrapper
						      *blob)
{
	const struct rt2x00debug *debug = intf->debug;
	char *data;

	data = kzalloc(9 * MAX_LINE_LENGTH, GFP_KERNEL);
	if (!data)
		return NULL;

	blob->data = data;
	data += sprintf(data, "rt chip:\t%04x\n", intf->rt2x00dev->chip.rt);
	data += sprintf(data, "rf chip:\t%04x\n", intf->rt2x00dev->chip.rf);
	data += sprintf(data, "revision:\t%04x\n", intf->rt2x00dev->chip.rev);
	data += sprintf(data, "\n");
	data += sprintf(data, "register\tbase\twords\twordsize\n");

#define RT2X00DEBUGFS_SPRINTF_REGISTER(__name)			\
{                                                               \
        if (debug->__name.read)                                 \
                data += sprintf(data, __stringify(__name)       \
                                "\t%d\t%d\t%d\n",               \
                                debug->__name.word_base,        \
                                debug->__name.word_count,       \
                                debug->__name.word_size);       \
}
	RT2X00DEBUGFS_SPRINTF_REGISTER(csr);
	RT2X00DEBUGFS_SPRINTF_REGISTER(eeprom);
	RT2X00DEBUGFS_SPRINTF_REGISTER(bbp);
	RT2X00DEBUGFS_SPRINTF_REGISTER(rf);
	RT2X00DEBUGFS_SPRINTF_REGISTER(rfcsr);

#undef RT2X00DEBUGFS_SPRINTF_REGISTER

	blob->size = strlen(blob->data);

	return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
170
88.54%
6
60.00%
Anisse Astier
20
10.42%
2
20.00%
Paul McQuade
1
0.52%
1
10.00%
Gertjan van Wingerde
1
0.52%
1
10.00%
Total
192
100.00%
10
100.00%



void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
{
	const struct rt2x00debug *debug = rt2x00dev->ops->debugfs;
	struct rt2x00debug_intf *intf;

	intf = kzalloc(sizeof(struct rt2x00debug_intf), GFP_KERNEL);
	if (!intf) {
		rt2x00_err(rt2x00dev, "Failed to allocate debug handler\n");
		return;
	}

	intf->debug = debug;
	intf->rt2x00dev = rt2x00dev;
	rt2x00dev->debugfs_intf = intf;

	intf->driver_folder =
	    debugfs_create_dir(intf->rt2x00dev->ops->name,
			       rt2x00dev->hw->wiphy->debugfsdir);
	if (IS_ERR(intf->driver_folder) || !intf->driver_folder)
		goto exit;

	intf->driver_entry =
	    rt2x00debug_create_file_driver("driver", intf, &intf->driver_blob);
	if (IS_ERR(intf->driver_entry) || !intf->driver_entry)
		goto exit;

	intf->chipset_entry =
	    rt2x00debug_create_file_chipset("chipset",
					    intf, &intf->chipset_blob);
	if (IS_ERR(intf->chipset_entry) || !intf->chipset_entry)
		goto exit;

	intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR,
					      intf->driver_folder, intf,
					      &rt2x00debug_fop_dev_flags);
	if (IS_ERR(intf->dev_flags) || !intf->dev_flags)
		goto exit;

	intf->cap_flags = debugfs_create_file("cap_flags", S_IRUSR,
					      intf->driver_folder, intf,
					      &rt2x00debug_fop_cap_flags);
	if (IS_ERR(intf->cap_flags) || !intf->cap_flags)
		goto exit;

	intf->register_folder =
	    debugfs_create_dir("register", intf->driver_folder);
	if (IS_ERR(intf->register_folder) || !intf->register_folder)
		goto exit;


#define RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(__intf, __name)			\
({                                                                              \
        if (debug->__name.read) {                                               \
                (__intf)->__name##_off_entry =                                  \
                debugfs_create_u32(__stringify(__name) "_offset",               \
                                       S_IRUSR | S_IWUSR,                       \
                                       (__intf)->register_folder,               \
                                       &(__intf)->offset_##__name);             \
                if (IS_ERR((__intf)->__name##_off_entry)                        \
                                || !(__intf)->__name##_off_entry)               \
                        goto exit;                                              \
                                                                                \
                (__intf)->__name##_val_entry =                                  \
                debugfs_create_file(__stringify(__name) "_value",               \
                                        S_IRUSR | S_IWUSR,                      \
                                        (__intf)->register_folder,              \
                                        (__intf), &rt2x00debug_fop_##__name);   \
                if (IS_ERR((__intf)->__name##_val_entry)                        \
                                || !(__intf)->__name##_val_entry)               \
                        goto exit;                                              \
        }                                                                       \
})

	RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, csr);
	RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, eeprom);
	RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, bbp);
	RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rf);
	RT2X00DEBUGFS_CREATE_REGISTER_ENTRY(intf, rfcsr);


#undef RT2X00DEBUGFS_CREATE_REGISTER_ENTRY

	intf->queue_folder =
	    debugfs_create_dir("queue", intf->driver_folder);
	if (IS_ERR(intf->queue_folder) || !intf->queue_folder)
		goto exit;

	intf->queue_frame_dump_entry =
	    debugfs_create_file("dump", S_IRUSR, intf->queue_folder,
				intf, &rt2x00debug_fop_queue_dump);
	if (IS_ERR(intf->queue_frame_dump_entry)
		|| !intf->queue_frame_dump_entry)
		goto exit;

	skb_queue_head_init(&intf->frame_dump_skbqueue);
	init_waitqueue_head(&intf->frame_dump_waitqueue);

	intf->queue_stats_entry =
	    debugfs_create_file("queue", S_IRUSR, intf->queue_folder,
				intf, &rt2x00debug_fop_queue_stats);

#ifdef CONFIG_RT2X00_LIB_CRYPTO
	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
		intf->crypto_stats_entry =
		    debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
					intf, &rt2x00debug_fop_crypto_stats);
#endif

	return;

exit:
	rt2x00debug_deregister(rt2x00dev);
	rt2x00_err(rt2x00dev, "Failed to register debug handler\n");
}

Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
433
90.02%
9
64.29%
Zhao Lei
35
7.28%
1
7.14%
Anisse Astier
7
1.46%
1
7.14%
Joe Perches
4
0.83%
1
7.14%
Gabor Juhos
1
0.21%
1
7.14%
Paul McQuade
1
0.21%
1
7.14%
Total
481
100.00%
14
100.00%



void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
{
	struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;

	if (unlikely(!intf))
		return;

	skb_queue_purge(&intf->frame_dump_skbqueue);

#ifdef CONFIG_RT2X00_LIB_CRYPTO
	debugfs_remove(intf->crypto_stats_entry);
#endif
	debugfs_remove(intf->queue_stats_entry);
	debugfs_remove(intf->queue_frame_dump_entry);
	debugfs_remove(intf->queue_folder);
	debugfs_remove(intf->rfcsr_val_entry);
	debugfs_remove(intf->rfcsr_off_entry);
	debugfs_remove(intf->rf_val_entry);
	debugfs_remove(intf->rf_off_entry);
	debugfs_remove(intf->bbp_val_entry);
	debugfs_remove(intf->bbp_off_entry);
	debugfs_remove(intf->eeprom_val_entry);
	debugfs_remove(intf->eeprom_off_entry);
	debugfs_remove(intf->csr_val_entry);
	debugfs_remove(intf->csr_off_entry);
	debugfs_remove(intf->register_folder);
	debugfs_remove(intf->dev_flags);
	debugfs_remove(intf->cap_flags);
	debugfs_remove(intf->chipset_entry);
	debugfs_remove(intf->driver_entry);
	debugfs_remove(intf->driver_folder);
	kfree(intf->chipset_blob.data);
	kfree(intf->driver_blob.data);
	kfree(intf);

	rt2x00dev->debugfs_intf = NULL;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
196
93.33%
7
87.50%
Anisse Astier
14
6.67%
1
12.50%
Total
210
100.00%
8
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Ivo van Doorn
2828
92.69%
20
45.45%
Anisse Astier
65
2.13%
2
4.55%
Gertjan van Wingerde
54
1.77%
5
11.36%
Zhao Lei
35
1.15%
1
2.27%
Arnd Bergmann
21
0.69%
2
4.55%
Joe Perches
13
0.43%
3
6.82%
Stanislaw Gruszka
11
0.36%
1
2.27%
Helmut Schaa
9
0.29%
1
2.27%
Alexey Dobriyan
3
0.10%
1
2.27%
Tejun Heo
3
0.10%
1
2.27%
Paul McQuade
2
0.07%
1
2.27%
Silvan Jegen
2
0.07%
1
2.27%
Roel Kluin
1
0.03%
1
2.27%
Daniel Mack
1
0.03%
1
2.27%
Jeff Kirsher
1
0.03%
1
2.27%
Gabor Juhos
1
0.03%
1
2.27%
Alan One Thousand Gnomes
1
0.03%
1
2.27%
Total
3051
100.00%
44
100.00%
Directory: drivers/net/wireless/ralink/rt2x00

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