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path: root/drivers/staging/wimax/i2400m/debugfs.c
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Diffstat (limited to 'drivers/staging/wimax/i2400m/debugfs.c')
-rw-r--r--drivers/staging/wimax/i2400m/debugfs.c253
1 files changed, 0 insertions, 253 deletions
diff --git a/drivers/staging/wimax/i2400m/debugfs.c b/drivers/staging/wimax/i2400m/debugfs.c
deleted file mode 100644
index 1c640b41ea4c..000000000000
--- a/drivers/staging/wimax/i2400m/debugfs.c
+++ /dev/null
@@ -1,253 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel Wireless WiMAX Connection 2400m
- * Debugfs interfaces to manipulate driver and device information
- *
- * Copyright (C) 2007 Intel Corporation <linux-wimax@intel.com>
- * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
- */
-
-#include <linux/debugfs.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/spinlock.h>
-#include <linux/device.h>
-#include <linux/export.h>
-#include "i2400m.h"
-
-
-#define D_SUBMODULE debugfs
-#include "debug-levels.h"
-
-static
-int debugfs_netdev_queue_stopped_get(void *data, u64 *val)
-{
- struct i2400m *i2400m = data;
- *val = netif_queue_stopped(i2400m->wimax_dev.net_dev);
- return 0;
-}
-DEFINE_DEBUGFS_ATTRIBUTE(fops_netdev_queue_stopped,
- debugfs_netdev_queue_stopped_get,
- NULL, "%llu\n");
-
-/*
- * We don't allow partial reads of this file, as then the reader would
- * get weirdly confused data as it is updated.
- *
- * So or you read it all or nothing; if you try to read with an offset
- * != 0, we consider you are done reading.
- */
-static
-ssize_t i2400m_rx_stats_read(struct file *filp, char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct i2400m *i2400m = filp->private_data;
- char buf[128];
- unsigned long flags;
-
- if (*ppos != 0)
- return 0;
- if (count < sizeof(buf))
- return -ENOSPC;
- spin_lock_irqsave(&i2400m->rx_lock, flags);
- snprintf(buf, sizeof(buf), "%u %u %u %u %u %u %u\n",
- i2400m->rx_pl_num, i2400m->rx_pl_min,
- i2400m->rx_pl_max, i2400m->rx_num,
- i2400m->rx_size_acc,
- i2400m->rx_size_min, i2400m->rx_size_max);
- spin_unlock_irqrestore(&i2400m->rx_lock, flags);
- return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
-}
-
-
-/* Any write clears the stats */
-static
-ssize_t i2400m_rx_stats_write(struct file *filp, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct i2400m *i2400m = filp->private_data;
- unsigned long flags;
-
- spin_lock_irqsave(&i2400m->rx_lock, flags);
- i2400m->rx_pl_num = 0;
- i2400m->rx_pl_max = 0;
- i2400m->rx_pl_min = UINT_MAX;
- i2400m->rx_num = 0;
- i2400m->rx_size_acc = 0;
- i2400m->rx_size_min = UINT_MAX;
- i2400m->rx_size_max = 0;
- spin_unlock_irqrestore(&i2400m->rx_lock, flags);
- return count;
-}
-
-static
-const struct file_operations i2400m_rx_stats_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = i2400m_rx_stats_read,
- .write = i2400m_rx_stats_write,
- .llseek = default_llseek,
-};
-
-
-/* See i2400m_rx_stats_read() */
-static
-ssize_t i2400m_tx_stats_read(struct file *filp, char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct i2400m *i2400m = filp->private_data;
- char buf[128];
- unsigned long flags;
-
- if (*ppos != 0)
- return 0;
- if (count < sizeof(buf))
- return -ENOSPC;
- spin_lock_irqsave(&i2400m->tx_lock, flags);
- snprintf(buf, sizeof(buf), "%u %u %u %u %u %u %u\n",
- i2400m->tx_pl_num, i2400m->tx_pl_min,
- i2400m->tx_pl_max, i2400m->tx_num,
- i2400m->tx_size_acc,
- i2400m->tx_size_min, i2400m->tx_size_max);
- spin_unlock_irqrestore(&i2400m->tx_lock, flags);
- return simple_read_from_buffer(buffer, count, ppos, buf, strlen(buf));
-}
-
-/* Any write clears the stats */
-static
-ssize_t i2400m_tx_stats_write(struct file *filp, const char __user *buffer,
- size_t count, loff_t *ppos)
-{
- struct i2400m *i2400m = filp->private_data;
- unsigned long flags;
-
- spin_lock_irqsave(&i2400m->tx_lock, flags);
- i2400m->tx_pl_num = 0;
- i2400m->tx_pl_max = 0;
- i2400m->tx_pl_min = UINT_MAX;
- i2400m->tx_num = 0;
- i2400m->tx_size_acc = 0;
- i2400m->tx_size_min = UINT_MAX;
- i2400m->tx_size_max = 0;
- spin_unlock_irqrestore(&i2400m->tx_lock, flags);
- return count;
-}
-
-static
-const struct file_operations i2400m_tx_stats_fops = {
- .owner = THIS_MODULE,
- .open = simple_open,
- .read = i2400m_tx_stats_read,
- .write = i2400m_tx_stats_write,
- .llseek = default_llseek,
-};
-
-
-/* Write 1 to ask the device to go into suspend */
-static
-int debugfs_i2400m_suspend_set(void *data, u64 val)
-{
- int result;
- struct i2400m *i2400m = data;
- result = i2400m_cmd_enter_powersave(i2400m);
- if (result >= 0)
- result = 0;
- return result;
-}
-DEFINE_DEBUGFS_ATTRIBUTE(fops_i2400m_suspend,
- NULL, debugfs_i2400m_suspend_set,
- "%llu\n");
-
-/*
- * Reset the device
- *
- * Write 0 to ask the device to soft reset, 1 to cold reset, 2 to bus
- * reset (as defined by enum i2400m_reset_type).
- */
-static
-int debugfs_i2400m_reset_set(void *data, u64 val)
-{
- int result;
- struct i2400m *i2400m = data;
- enum i2400m_reset_type rt = val;
- switch(rt) {
- case I2400M_RT_WARM:
- case I2400M_RT_COLD:
- case I2400M_RT_BUS:
- result = i2400m_reset(i2400m, rt);
- if (result >= 0)
- result = 0;
- break;
- default:
- result = -EINVAL;
- }
- return result;
-}
-DEFINE_DEBUGFS_ATTRIBUTE(fops_i2400m_reset,
- NULL, debugfs_i2400m_reset_set,
- "%llu\n");
-
-void i2400m_debugfs_add(struct i2400m *i2400m)
-{
- struct dentry *dentry = i2400m->wimax_dev.debugfs_dentry;
-
- dentry = debugfs_create_dir("i2400m", dentry);
- i2400m->debugfs_dentry = dentry;
-
- d_level_register_debugfs("dl_", control, dentry);
- d_level_register_debugfs("dl_", driver, dentry);
- d_level_register_debugfs("dl_", debugfs, dentry);
- d_level_register_debugfs("dl_", fw, dentry);
- d_level_register_debugfs("dl_", netdev, dentry);
- d_level_register_debugfs("dl_", rfkill, dentry);
- d_level_register_debugfs("dl_", rx, dentry);
- d_level_register_debugfs("dl_", tx, dentry);
-
- debugfs_create_size_t("tx_in", 0400, dentry, &i2400m->tx_in);
- debugfs_create_size_t("tx_out", 0400, dentry, &i2400m->tx_out);
- debugfs_create_u32("state", 0600, dentry, &i2400m->state);
-
- /*
- * Trace received messages from user space
- *
- * In order to tap the bidirectional message stream in the
- * 'msg' pipe, user space can read from the 'msg' pipe;
- * however, due to limitations in libnl, we can't know what
- * the different applications are sending down to the kernel.
- *
- * So we have this hack where the driver will echo any message
- * received on the msg pipe from user space [through a call to
- * wimax_dev->op_msg_from_user() into
- * i2400m_op_msg_from_user()] into the 'trace' pipe that this
- * driver creates.
- *
- * So then, reading from both the 'trace' and 'msg' pipes in
- * user space will provide a full dump of the traffic.
- *
- * Write 1 to activate, 0 to clear.
- *
- * It is not really very atomic, but it is also not too
- * critical.
- */
- debugfs_create_u8("trace_msg_from_user", 0600, dentry,
- &i2400m->trace_msg_from_user);
-
- debugfs_create_file("netdev_queue_stopped", 0400, dentry, i2400m,
- &fops_netdev_queue_stopped);
-
- debugfs_create_file("rx_stats", 0600, dentry, i2400m,
- &i2400m_rx_stats_fops);
-
- debugfs_create_file("tx_stats", 0600, dentry, i2400m,
- &i2400m_tx_stats_fops);
-
- debugfs_create_file("suspend", 0200, dentry, i2400m,
- &fops_i2400m_suspend);
-
- debugfs_create_file("reset", 0200, dentry, i2400m, &fops_i2400m_reset);
-}
-
-void i2400m_debugfs_rm(struct i2400m *i2400m)
-{
- debugfs_remove_recursive(i2400m->debugfs_dentry);
-}