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Diffstat (limited to 'net/mac80211/rc80211_pid_debugfs.c')
-rw-r--r--net/mac80211/rc80211_pid_debugfs.c228
1 files changed, 0 insertions, 228 deletions
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
deleted file mode 100644
index 6ff134650a84..000000000000
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ /dev/null
@@ -1,228 +0,0 @@
-/*
- * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/poll.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/slab.h>
-#include <linux/export.h>
-
-#include <net/mac80211.h>
-#include "rate.h"
-
-#include "rc80211_pid.h"
-
-static void rate_control_pid_event(struct rc_pid_event_buffer *buf,
- enum rc_pid_event_type type,
- union rc_pid_event_data *data)
-{
- struct rc_pid_event *ev;
- unsigned long status;
-
- spin_lock_irqsave(&buf->lock, status);
- ev = &(buf->ring[buf->next_entry]);
- buf->next_entry = (buf->next_entry + 1) % RC_PID_EVENT_RING_SIZE;
-
- ev->timestamp = jiffies;
- ev->id = buf->ev_count++;
- ev->type = type;
- ev->data = *data;
-
- spin_unlock_irqrestore(&buf->lock, status);
-
- wake_up_all(&buf->waitqueue);
-}
-
-void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
- struct ieee80211_tx_info *stat)
-{
- union rc_pid_event_data evd;
-
- evd.flags = stat->flags;
- memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_info));
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd);
-}
-
-void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf,
- int index, int rate)
-{
- union rc_pid_event_data evd;
-
- evd.index = index;
- evd.rate = rate;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_RATE_CHANGE, &evd);
-}
-
-void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf,
- int index, int rate)
-{
- union rc_pid_event_data evd;
-
- evd.index = index;
- evd.rate = rate;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_RATE, &evd);
-}
-
-void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf,
- s32 pf_sample, s32 prop_err,
- s32 int_err, s32 der_err)
-{
- union rc_pid_event_data evd;
-
- evd.pf_sample = pf_sample;
- evd.prop_err = prop_err;
- evd.int_err = int_err;
- evd.der_err = der_err;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_PF_SAMPLE, &evd);
-}
-
-static int rate_control_pid_events_open(struct inode *inode, struct file *file)
-{
- struct rc_pid_sta_info *sinfo = inode->i_private;
- struct rc_pid_event_buffer *events = &sinfo->events;
- struct rc_pid_events_file_info *file_info;
- unsigned long status;
-
- /* Allocate a state struct */
- file_info = kmalloc(sizeof(*file_info), GFP_KERNEL);
- if (file_info == NULL)
- return -ENOMEM;
-
- spin_lock_irqsave(&events->lock, status);
-
- file_info->next_entry = events->next_entry;
- file_info->events = events;
-
- spin_unlock_irqrestore(&events->lock, status);
-
- file->private_data = file_info;
-
- return 0;
-}
-
-static int rate_control_pid_events_release(struct inode *inode,
- struct file *file)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
-
- kfree(file_info);
-
- return 0;
-}
-
-static unsigned int rate_control_pid_events_poll(struct file *file,
- poll_table *wait)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
-
- poll_wait(file, &file_info->events->waitqueue, wait);
-
- return POLLIN | POLLRDNORM;
-}
-
-#define RC_PID_PRINT_BUF_SIZE 64
-
-static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
- size_t length, loff_t *offset)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
- struct rc_pid_event_buffer *events = file_info->events;
- struct rc_pid_event *ev;
- char pb[RC_PID_PRINT_BUF_SIZE];
- int ret;
- int p;
- unsigned long status;
-
- /* Check if there is something to read. */
- if (events->next_entry == file_info->next_entry) {
- if (file->f_flags & O_NONBLOCK)
- return -EAGAIN;
-
- /* Wait */
- ret = wait_event_interruptible(events->waitqueue,
- events->next_entry != file_info->next_entry);
-
- if (ret)
- return ret;
- }
-
- /* Write out one event per call. I don't care whether it's a little
- * inefficient, this is debugging code anyway. */
- spin_lock_irqsave(&events->lock, status);
-
- /* Get an event */
- ev = &(events->ring[file_info->next_entry]);
- file_info->next_entry = (file_info->next_entry + 1) %
- RC_PID_EVENT_RING_SIZE;
-
- /* Print information about the event. Note that userspace needs to
- * provide large enough buffers. */
- length = length < RC_PID_PRINT_BUF_SIZE ?
- length : RC_PID_PRINT_BUF_SIZE;
- p = scnprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
- switch (ev->type) {
- case RC_PID_EVENT_TYPE_TX_STATUS:
- p += scnprintf(pb + p, length - p, "tx_status %u %u",
- !(ev->data.flags & IEEE80211_TX_STAT_ACK),
- ev->data.tx_status.status.rates[0].idx);
- break;
- case RC_PID_EVENT_TYPE_RATE_CHANGE:
- p += scnprintf(pb + p, length - p, "rate_change %d %d",
- ev->data.index, ev->data.rate);
- break;
- case RC_PID_EVENT_TYPE_TX_RATE:
- p += scnprintf(pb + p, length - p, "tx_rate %d %d",
- ev->data.index, ev->data.rate);
- break;
- case RC_PID_EVENT_TYPE_PF_SAMPLE:
- p += scnprintf(pb + p, length - p,
- "pf_sample %d %d %d %d",
- ev->data.pf_sample, ev->data.prop_err,
- ev->data.int_err, ev->data.der_err);
- break;
- }
- p += scnprintf(pb + p, length - p, "\n");
-
- spin_unlock_irqrestore(&events->lock, status);
-
- if (copy_to_user(buf, pb, p))
- return -EFAULT;
-
- return p;
-}
-
-#undef RC_PID_PRINT_BUF_SIZE
-
-static const struct file_operations rc_pid_fop_events = {
- .owner = THIS_MODULE,
- .read = rate_control_pid_events_read,
- .poll = rate_control_pid_events_poll,
- .open = rate_control_pid_events_open,
- .release = rate_control_pid_events_release,
- .llseek = noop_llseek,
-};
-
-void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct rc_pid_sta_info *spinfo = priv_sta;
-
- spinfo->events_entry = debugfs_create_file("rc_pid_events", S_IRUGO,
- dir, spinfo,
- &rc_pid_fop_events);
-}
-
-void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta)
-{
- struct rc_pid_sta_info *spinfo = priv_sta;
-
- debugfs_remove(spinfo->events_entry);
-}
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